TY - JOUR T1 - CO sub(2)/brine/rock interactions in Lower Tuscaloosa formation AN - 1855084788; PQ0003949659 AB - Saline aquifers are the largest potential continental geologic CO sub(2) sequestration resource. Understanding of potential geochemically induced changes to the porosity and permeability of host CO sub(2) storage and sealing formation rock will improve our ability to predict CO sub(2) plume dynamics, storage capacity, and long-term reservoir behavior. Experiments exploring geochemical interactions of CO sub(2)/brine/rock on saline formations under CO sub(2) sequestration conditions were conducted in a static system. Chemical interactions in core samples from the Lower Tuscaloosa formation from Jackson County, Mississippi, with exposure to CO sub(2)-saturated brine under sequestration conditions were studied through six months of batch exposure. The experimental conditions to which the core samples of Lower Tuscaloosa sandstone and Selma chalk were exposed to a temperature of 85 degree C, CO sub(2) pressure of 23.8 MPa (3500 psig), while immersed in a model brine representative of Tuscaloosa Basin. Computed tomography (CT), X-Ray diffraction (XRD), Scanning Electron Microscopy (SEM), brine chemistry, and petrography analyses were performed before and after the exposure. Permeability measurements from the sandstone core sample before and after exposure showed a permeability reduction. No significant change of the permeability measurements was noticed for the core sample obtained from Selma chalk after it was exposed to CO sub(2)/brine for six months. These results have implications for performance of the storage interval, and the integrity of the seal in a CO sub(2) storage setting. JF - Greenhouse Gases: Science and Technology AU - Soong, Yee AU - Howard, Bret H AU - Dilmore, Robert M AU - Haljasmaa, Igor AU - Crandall, Dustin M AU - Zhang, Liwei AU - Zhang, Wu AU - Lin, Ronghong AU - Irdi, Gino A AU - Romanov, Vyacheslav N AU - Mclendon, Thomas R AD - US DOE, National Energy Technology Laboratory, Pittsburgh, PA, USA. Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 824 EP - 837 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 6 IS - 6 SN - 2152-3878, 2152-3878 KW - Environment Abstracts; Ecology Abstracts KW - Aquifers KW - Basins KW - Models KW - Permeability KW - USA, Alabama, Tuscaloosa KW - Pressure KW - Plumes KW - Temperature effects KW - Scanning electron microscopy KW - Sandstone KW - Geochemistry KW - Porosity KW - X-ray diffraction KW - Storage KW - Microscopy KW - Computed tomography KW - USA, Mississippi KW - Chemical interactions KW - Greenhouse gases KW - Carbon dioxide KW - Brines KW - D 04040:Ecosystem and Ecology Studies KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855084788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Greenhouse+Gases%3A+Science+and+Technology&rft.atitle=CO+sub%282%29%2Fbrine%2Frock+interactions+in+Lower+Tuscaloosa+formation&rft.au=Soong%2C+Yee%3BHoward%2C+Bret+H%3BDilmore%2C+Robert+M%3BHaljasmaa%2C+Igor%3BCrandall%2C+Dustin+M%3BZhang%2C+Liwei%3BZhang%2C+Wu%3BLin%2C+Ronghong%3BIrdi%2C+Gino+A%3BRomanov%2C+Vyacheslav+N%3BMclendon%2C+Thomas+R&rft.aulast=Soong&rft.aufirst=Yee&rft.date=2016-12-01&rft.volume=6&rft.issue=6&rft.spage=824&rft.isbn=&rft.btitle=&rft.title=Greenhouse+Gases%3A+Science+and+Technology&rft.issn=21523878&rft_id=info:doi/10.1002%2Fghg.1611 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Aquifers; Temperature effects; Scanning electron microscopy; Porosity; Basins; X-ray diffraction; Models; Permeability; Computed tomography; Pressure; Carbon dioxide; Greenhouse gases; Plumes; Brines; Sandstone; Geochemistry; Storage; Microscopy; Chemical interactions; USA, Alabama, Tuscaloosa; USA, Mississippi DO - http://dx.doi.org/10.1002/ghg.1611 ER - TY - GEN T1 - Move Over Platinum, We Want Nickel! AN - 1840127277 JF - Breaking Energy AU - Jenny Bowman | National Energy Technology Laboratory Y1 - 2016/11/16/ PY - 2016 DA - 2016 Nov 16 CY - New York PB - SyndiGate Media Inc KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840127277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aabitrade&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Breaking+Energy&rft.atitle=Move+Over+Platinum%2C+We+Want+Nickel%21&rft.au=Jenny+Bowman+%3B+National+Energy+Technology+Laboratory&rft.aulast=Jenny+Bowman+%7C+National+Energy+Technology+Laboratory&rft.aufirst=&rft.date=2016-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Breaking+Energy&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright © 2016 Breaking Media, Inc. All rights reserved. Provided by SyndiGate Media Inc. (Syndigate.info). N1 - Last updated - 2016-11-16 ER - TY - JOUR T1 - Mathematical modeling of a moving bed reactor for post-combustion CO sub(2) capture AN - 1827881715; PQ0003725858 AB - A mathematical model for a moving bed reactor with embedded heat exchanger has been developed for application to solid sorbent-based capture of carbon dioxide from flue gas emitted by coal-fired power plants. The reactor model is one-dimensional, non-isothermal, and pressure-driven. The two-phase (gas and solids) model includes rigorous kinetics and heat and mass transfer between the two phases. Flow characteristics of the gas and solids in the moving bed are obtained by analogy with correlations for fixed and fluidized bed systems. From the steady-state perspective, this work presents the impact of key design variables that can be used for optimization. From the dynamic perspective, the article shows transient profiles of key outputs that should be taken into account while designing an effective control system. In addition, the article also presents performance of a model predictive controller for the moving bed regenerator under process constraints. copyright 2016 American Institute of Chemical Engineers AIChE J, 62: 3899-3914, 2016 JF - AICHE Journal AU - Kim, Hosoo AU - Miller, David C AU - Modekurti, Srinivasarao AU - Omell, Benjamin AU - Bhattacharyya, Debangsu AU - Zitney, Stephen E AD - National Energy Technology Laboratory, 3610 Collins Ferry Road, Morgantown, WV, 26507. Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 3899 EP - 3914 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 62 IS - 11 SN - 0001-1541, 0001-1541 KW - Environment Abstracts KW - Mathematical models KW - Control systems KW - Kinetics KW - Heat exchangers KW - Fluidized beds KW - Power plants KW - Flue gas KW - Coal KW - Carbon dioxide KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827881715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AICHE+Journal&rft.atitle=Mathematical+modeling+of+a+moving+bed+reactor+for+post-combustion+CO+sub%282%29+capture&rft.au=Kim%2C+Hosoo%3BMiller%2C+David+C%3BModekurti%2C+Srinivasarao%3BOmell%2C+Benjamin%3BBhattacharyya%2C+Debangsu%3BZitney%2C+Stephen+E&rft.aulast=Kim&rft.aufirst=Hosoo&rft.date=2016-11-01&rft.volume=62&rft.issue=11&rft.spage=3899&rft.isbn=&rft.btitle=&rft.title=AICHE+Journal&rft.issn=00011541&rft_id=info:doi/10.1002%2Faic.15289 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-10-26 N1 - SubjectsTermNotLitGenreText - Mathematical models; Control systems; Heat exchangers; Kinetics; Fluidized beds; Flue gas; Power plants; Coal; Carbon dioxide DO - http://dx.doi.org/10.1002/aic.15289 ER - TY - JOUR T1 - Comparative Study of Effects of CO2 Concentration and pH on Microbial Communities from a Saline Aquifer, a Depleted Oil Reservoir, and a Freshwater Aquifer AN - 1859496809; PQ0003988529 AB - Injected CO2 from geologic carbon storage is expected to impact the microbial communities of proposed storage sites, such as depleted oil reservoirs and deep saline aquifers, as well as overlying freshwater aquifers at risk of receiving leaking CO2. Microbial community change in these subsurface sites may affect injectivity of CO2, permanence of stored CO2, and shallow subsurface water quality. The effect of CO2 concentration on the microbial communities in fluid collected from a depleted oil reservoir and a freshwater aquifer was examined at subsurface pressures and temperatures. The community was exposed to 0%, 1%, 10%, and 100% pCO2 for 56 days. Bacterial community structure was analyzed through 16S rRNA gene clone libraries, and total bacterial abundance was estimated through quantitative polymerase chain reaction. Changes in the microbial community observed in the depleted oil reservoir samples and freshwater samples were compared to previous results from CO2-exposed deep saline aquifer fluids. Overall, results suggest that CO2 exposure to microbial communities will result in pH-dependent population change, and the CO2-selected microbial communities will vary among sites. This is the first study to compare the response of multiple subsurface microbial communities at conditions expected during geologic carbon storage, increasing the understanding of environmental drivers for microbial community changes in CO2-exposed environments. JF - Environmental Engineering Science AU - Gulliver, Djuna M AU - Lowry, Gregory V AU - Gregory, Kelvin B AD - Office of Research and Development, National Energy Technology Laboratory, Department of Energy, Pittsburgh, Pennsylvania. Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 806 EP - 816 PB - Mary Ann Liebert, Inc. Publishers, 140 Huguenot St 3rd Fl New Rochelle NY 10801 United States VL - 33 IS - 10 SN - 1092-8758, 1092-8758 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Environment Abstracts KW - ecology and environmental impacts, soil and subsurface KW - environmental microbiology, biogeochemistry KW - geological sciences, CO2 capture and storage KW - global scale and regional scale environmental impacts KW - microbial ecology KW - Aquifers KW - Abundance KW - Water quality KW - Oil KW - Carbon sequestration KW - Comparative studies KW - Carbon KW - Population changes KW - Polymerase chain reaction KW - Geology KW - Pressure KW - pH effects KW - pH KW - Temperature effects KW - Freshwater environments KW - Temperature KW - Microbial activity KW - Storage KW - Community structure KW - Oil reservoirs KW - Carbon dioxide KW - rRNA 16S KW - A 01450:Environmental Pollution & Waste Treatment KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859496809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Engineering+Science&rft.atitle=Comparative+Study+of+Effects+of+CO2+Concentration+and+pH+on+Microbial+Communities+from+a+Saline+Aquifer%2C+a+Depleted+Oil+Reservoir%2C+and+a+Freshwater+Aquifer&rft.au=Gulliver%2C+Djuna+M%3BLowry%2C+Gregory+V%3BGregory%2C+Kelvin+B&rft.aulast=Gulliver&rft.aufirst=Djuna&rft.date=2016-10-01&rft.volume=33&rft.issue=10&rft.spage=806&rft.isbn=&rft.btitle=&rft.title=Environmental+Engineering+Science&rft.issn=10928758&rft_id=info:doi/10.1089%2Fees.2015.0368 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Number of references - 64 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Aquifers; Temperature effects; Freshwater environments; Abundance; Water quality; Oil; Carbon; Community structure; Polymerase chain reaction; Population changes; Carbon dioxide; Pressure; pH effects; rRNA 16S; Storage; Comparative studies; Carbon sequestration; Oil reservoirs; Temperature; Geology; Microbial activity; pH DO - http://dx.doi.org/10.1089/ees.2015.0368 ER - TY - JOUR T1 - Non-invasive measurement of proppant pack deformation AN - 1828846877; 2016-086907 AB - In this paper, we describe a method to non-invasively study the movement of proppant packs at the sub-fracture scale by applying three-dimensional digital image correlation techniques to X-ray tomography data. Proppant movement is tracked in a fractured core of Marcellus shale placed under a series of increasing confining pressures up to 10,000 psi. The analysis reveals the sudden failure of a region of the proppant pack, accompanied by the large-scale rearrangement of grains across the entire fracture surface. The failure of the pack coincides with the appearance of vortex-like grain motions similar to features observed in biaxial compression of two dimensional granular assemblies JF - International Journal of Rock Mechanics and Mining Sciences (1997) AU - Walsh, Stuart D C AU - Smith, Megan AU - Carroll, Susan A AU - Crandall, Dustin Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 39 EP - 47 PB - Elsevier, Oxford-New York VL - 87 SN - 1365-1609, 1365-1609 KW - tomography KW - fractured materials KW - hydraulics KW - three-dimensional models KW - proppant KW - biaxial tests KW - shale KW - loading KW - non-invasive methods KW - deformation KW - rock mechanics KW - measurement KW - sedimentary rocks KW - compressive strength KW - confining pressure KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.atitle=Non-invasive+measurement+of+proppant+pack+deformation&rft.au=Walsh%2C+Stuart+D+C%3BSmith%2C+Megan%3BCarroll%2C+Susan+A%3BCrandall%2C+Dustin&rft.aulast=Walsh&rft.aufirst=Stuart+D&rft.date=2016-09-01&rft.volume=87&rft.issue=&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.issn=13651609&rft_id=info:doi/10.1016%2Fj.ijrmms.2016.05.005 L2 - http://www.sciencedirect.com/science/journal/13651609 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 34 N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - IJRMA2 N1 - SubjectsTermNotLitGenreText - biaxial tests; clastic rocks; compressive strength; confining pressure; deformation; fractured materials; hydraulics; loading; measurement; non-invasive methods; proppant; rock mechanics; sedimentary rocks; shale; three-dimensional models; tomography DO - http://dx.doi.org/10.1016/j.ijrmms.2016.05.005 ER - TY - JOUR T1 - Effect of outer boundary condition, reservoir size, and CO sub(2) effective permeability on pressure and CO sub(2) saturation predictions under carbon sequestration conditions AN - 1815704896; PQ0003582063 AB - A TOUGH2 simulation was conducted to investigate how the change of key model parameters affects pressure and CO sub(2) saturation response to CO sub(2) injection into a deep CO sub(2) storage reservoir. Given a domain of 100 100 km and a formation permeability of 10 super(-13) m super(2), outer boundary condition does not have a significant impact on pressure increase and CO sub(2) saturation results. In a simulation period of 30 years of CO sub(2) injection + 100 years of post CO sub(2) injection, with a total CO sub(2) injection volume of 6.310 super(7) m super(3) at T = 47 degree C and P = 10.5 MPa (equivalent mass of 30 million tonnes of CO sub(2)), there is no pressure difference between the no flow boundary case and the open boundary case given a domain size of 100 x 100 km (a total storage formation pore volume of 10 super(11) m super(3) at T = 47 degree C and P = 10.5 MPa), and the maximum CO sub(2) plume radius difference is 0.5%. However, given a domain size of 10 10 km, outer boundary condition significantly affects pressure simulation results. At t = 130 years, the pressure increase in the no flow boundary case is 56.5 times of the pressure increase in the open boundary case at the cell 50 m away from the injection well. For the 10 10 km case, the impact of outer boundary condition on CO sub(2) saturation results is relatively small. The change in formation permeability significantly affects pressure increase results, while the change in CO sub(2) relative permeability model only affects pressure increase results at cells close to the CO sub(2) injector. copyright 2016 Society of Chemical Industry and John Wiley & Sons, Ltd JF - Greenhouse Gases: Science and Technology AU - Zhang, Liwei AU - Dilmore, Robert M AU - Bromhal, Grant S AD - National Energy Technology Laboratory, Pittsburgh, PA, USA. Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 546 EP - 560 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 6 IS - 4 SN - 2152-3878, 2152-3878 KW - Environment Abstracts; Ecology Abstracts KW - Prediction KW - Injection wells KW - Simulation KW - Boundary conditions KW - Chemical industry KW - Storage KW - Carbon sequestration KW - Permeability KW - Pores KW - Carbon KW - Boundaries KW - Carbon dioxide KW - Pressure KW - Greenhouse gases KW - Plumes KW - D 04040:Ecosystem and Ecology Studies KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815704896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Greenhouse+Gases%3A+Science+and+Technology&rft.atitle=Effect+of+outer+boundary+condition%2C+reservoir+size%2C+and+CO+sub%282%29+effective+permeability+on+pressure+and+CO+sub%282%29+saturation+predictions+under+carbon+sequestration+conditions&rft.au=Zhang%2C+Liwei%3BDilmore%2C+Robert+M%3BBromhal%2C+Grant+S&rft.aulast=Zhang&rft.aufirst=Liwei&rft.date=2016-08-01&rft.volume=6&rft.issue=4&rft.spage=546&rft.isbn=&rft.btitle=&rft.title=Greenhouse+Gases%3A+Science+and+Technology&rft.issn=21523878&rft_id=info:doi/10.1002%2Fghg.1586 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-10-12 N1 - SubjectsTermNotLitGenreText - Permeability; Pores; Carbon; Boundaries; Greenhouse gases; Pressure; Carbon dioxide; Plumes; Prediction; Storage; Carbon sequestration; Injection wells; Simulation; Boundary conditions; Chemical industry DO - http://dx.doi.org/10.1002/ghg.1586 ER - TY - JOUR T1 - Investigation on porosity and permeability change of Mount Simon sandstone (Knox County, IN, USA) under geological CO sub(2) sequestration conditions: a numerical simulation approach AN - 1815691533; PQ0003582062 AB - A numerical model was developed to simulate reactive transport with porosity and permeability change of Mount Simon sandstone (samples from Knox County, IN, USA) after 180 days of exposure to CO sub(2)-saturated brine under CO sub(2) sequestration conditions. The model predicted formation of a high-porosity zone adjacent to the surface of the sample in contact with bulk brine, and a lower porosity zone just beyond that high-porosity zone along the path from the sample/bulk brine interface to sample core. The formation of the high porosity zone was attributed to the dissolution of quartz and muscovite/illite, while the formation of the lower porosity zone adjacent to the high porosity zone was attributed to precipitation of kaolinite and feldspar. The model predicted a 40% permeability increase for the Knox sandstone sample after 180 days of exposure to CO sub(2)-saturated brine, which was consistent with laboratory-measured permeability results. Model-predicted solution chemistry results were also found to be consistent with laboratory-measured solution chemistry data. Initial porosity, initial feldspar content, and the exponent n value (determined by pore structure and tortuosity) used in permeability calculations were three important factors affecting permeability evolution of sandstone samples under CO sub(2) sequestration conditions. JF - Greenhouse Gases: Science and Technology AU - Zhang, Liwei AU - Soong, Yee AU - Dilmore, Robert M AD - US Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA, USA. Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 574 EP - 587 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 6 IS - 4 SN - 2152-3878, 2152-3878 KW - Environment Abstracts; Ecology Abstracts KW - Mathematical models KW - Data processing KW - Sandstone KW - Porosity KW - Simulation KW - Membrane permeability KW - kaolinite KW - Precipitation KW - Models KW - Permeability KW - Quartz KW - Dissolution KW - Greenhouse gases KW - Carbon dioxide KW - Evolution KW - Brines KW - D 04040:Ecosystem and Ecology Studies KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815691533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Greenhouse+Gases%3A+Science+and+Technology&rft.atitle=Investigation+on+porosity+and+permeability+change+of+Mount+Simon+sandstone+%28Knox+County%2C+IN%2C+USA%29+under+geological+CO+sub%282%29+sequestration+conditions%3A+a+numerical+simulation+approach&rft.au=Zhang%2C+Liwei%3BSoong%2C+Yee%3BDilmore%2C+Robert+M&rft.aulast=Zhang&rft.aufirst=Liwei&rft.date=2016-08-01&rft.volume=6&rft.issue=4&rft.spage=574&rft.isbn=&rft.btitle=&rft.title=Greenhouse+Gases%3A+Science+and+Technology&rft.issn=21523878&rft_id=info:doi/10.1002%2Fghg.1584 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-10-12 N1 - SubjectsTermNotLitGenreText - Data processing; Mathematical models; Porosity; Membrane permeability; Precipitation; kaolinite; Models; Permeability; Quartz; Dissolution; Carbon dioxide; Greenhouse gases; Evolution; Brines; Sandstone; Simulation DO - http://dx.doi.org/10.1002/ghg.1584 ER - TY - JOUR T1 - Modeling of Methane Migration in Shallow Aquifers from Shale Gas Well Drilling AN - 1819136481; PQ0003638431 AB - The vertical portion of a shale gas well, known as the "tophole" is often drilled using an air-hammer bit that may introduce pressures as high as 2400 kPa (350 psi) into groundwater while penetrating shallow aquifers. A 3-D TOUGH2 model was used to simulate the flow of groundwater under the high hydraulic heads that may be imposed by such trapped compressed air, based on an observed case in West Virginia (USA) in 2012. The model realizations show that high-pressure air trapped in aquifers may cause groundwater to surge away from the drill site at observable velocities. If dissolved methane is present within the aquifer, the methane can be entrained and transported to a maximum distance of 10.6 m per day. Results from this study suggest that one cause of the reported increase in methane concentrations in groundwater near shale gas production wells may be the transport of pre-existing methane via groundwater surges induced by air drilling, not necessarily direct natural gas leakage from the unconventional gas reservoir. The primary transport mechanisms are advective transport of dissolved methane with water flow, and diffusive transport of dissolved methane. JF - Ground Water AU - Zhang, Liwei AU - Soeder, Daniel J AD - U.S. Department of Energy, National Energy Technology Laboratory, 3610 Collins Ferry Road, Morgantown, WV 26507. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 345 EP - 353 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 54 IS - 3 SN - 0017-467X, 0017-467X KW - Environment Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Aquifers KW - Hydraulics KW - Drills KW - Drilling KW - Migration KW - Ground water KW - Modelling KW - Methane KW - Leakage KW - Water flow KW - Oil and gas industry KW - Surges KW - Photosystem I KW - Velocity KW - USA, West Virginia KW - Natural gas KW - Natural Gas KW - Shales KW - Wells KW - Sedimentary rocks KW - Groundwater KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09127:General papers on resources KW - SW 0810:General KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819136481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Modeling+of+Methane+Migration+in+Shallow+Aquifers+from+Shale+Gas+Well+Drilling&rft.au=Zhang%2C+Liwei%3BSoeder%2C+Daniel+J&rft.aulast=Zhang&rft.aufirst=Liwei&rft.date=2016-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-09-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Methane; Oil and gas industry; Photosystem I; Drills; Surges; Sedimentary rocks; Ground water; Natural gas; Modelling; Aquifers; Hydraulics; Leakage; Water flow; Velocity; Groundwater; Migration; Natural Gas; Shales; Wells; Drilling; USA, West Virginia DO - http://dx.doi.org/10.1111/gwat.12361 ER - TY - JOUR T1 - Pore-scale investigation on stress-dependent characteristics of granular packs and the impact of pore deformation on fluid distribution AN - 1832681591; 769333-12 AB - Understanding the effect of changing stress conditions on multiphase flow in porous media is of fundamental importance for many subsurface activities including enhanced oil recovery, water drawdown from aquifers, soil confinement, and geologic carbon storage. Geomechanical properties of complex porous systems are dynamically linked to flow conditions, but their feedback relationship is often oversimplified due to the difficulty of representing pore-scale stress deformation and multiphase flow characteristics in high fidelity. In this work, we performed pore-scale experiments of single- and multiphase flow through bead packs at different confining pressure conditions to elucidate compaction-dependent characteristics of granular packs and their impact on fluid flow. A series of drainage and imbibition cycles were conducted on a water-wet, soda-lime glass bead pack under varying confining stress conditions. Simultaneously, X-ray micro-CT was used to visualize and quantify the degree of deformation and fluid distribution corresponding with each stress condition and injection cycle. Micro-CT images were segmented using a gradient-based method to identify fluids (e.g., oil and water), and solid phase redistribution throughout the different experimental stages. Changes in porosity, tortuosity, and specific surface area were quantified as a function of applied confining pressure. Results demonstrate varying degrees of sensitivity of these properties to confining pressure, which suggests that caution must be taken when considering scalability of these properties for practical modeling purposes. Changes in capillary number with confining pressure are attributed to the increase in pore velocity as a result of pore contraction. However, this increase in pore velocity was found to have a marginal impact on average phase trapping at different confining pressures. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Geofluids (Oxford) AU - Torrealba, V A AU - Karpyn, Z T AU - Yoon, H AU - Klise, K A AU - Crandall, D Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 198 EP - 207 PB - Wiley-Blackwell, Oxford VL - 16 IS - 1 SN - 1468-8115, 1468-8115 KW - X-ray micro-computed tomography KW - petroleum KW - fluid phase KW - reservoir rocks KW - visualization KW - granular materials KW - confining pressure KW - experimental studies KW - carbon sequestration KW - drainage KW - cyclic processes KW - stress KW - tortuosity KW - fluid flow KW - porous materials KW - mechanical properties KW - deformation KW - porosity KW - imbibition KW - compaction KW - X-ray data KW - saturation KW - multiphase flow KW - computed tomography data KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832681591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geofluids+%28Oxford%29&rft.atitle=Pore-scale+investigation+on+stress-dependent+characteristics+of+granular+packs+and+the+impact+of+pore+deformation+on+fluid+distribution&rft.au=Torrealba%2C+V+A%3BKarpyn%2C+Z+T%3BYoon%2C+H%3BKlise%2C+K+A%3BCrandall%2C+D&rft.aulast=Torrealba&rft.aufirst=V&rft.date=2016-02-01&rft.volume=16&rft.issue=1&rft.spage=198&rft.isbn=&rft.btitle=&rft.title=Geofluids+%28Oxford%29&rft.issn=14688115&rft_id=info:doi/10.1111%2Fgfl.12143 L2 - http://www.blackwellpublishing.com/journal.asp?ref=1468-8115 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Number of references - 24 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - carbon sequestration; compaction; computed tomography data; confining pressure; cyclic processes; deformation; drainage; experimental studies; fluid flow; fluid phase; granular materials; imbibition; mechanical properties; multiphase flow; petroleum; porosity; porous materials; reservoir rocks; saturation; stress; tortuosity; visualization; X-ray data; X-ray micro-computed tomography DO - http://dx.doi.org/10.1111/gfl.12143 ER - TY - JOUR T1 - Inorganic carbon dynamics and CO (sub 2) flux associated with coal-mine drainage sites in Blythedale PA and Lambert WV, USA AN - 1807505071; 2016-064809 AB - Drainage from coal mines, where carbonate dissolution is driven by sulfuric acid, can result in a net transfer of geologically-bound carbon to the atmosphere. The flux and downstream evolution of dissolved inorganic carbon (DIC) is presented for two coal mine sites that discharge high concentrations of DIC (3.7-4.5 mM C) producing a total flux of DIC from the mine from 13 to 249 kg-C/year (18-364 metric tons of CO (sub 2) /year). More than 65 % of the total DIC is lost via CO (sub 2) evasion with the remaining DIC is exported downstream as dissolved species. The fate of the DIC depends upon the pH of the water which is controlled by evasion of CO (sub 2) , the concentration of pre-existing alkalinity, carbonate precipitation and dissolution, and metal hydrolysis reactions. The CO (sub 2) concentrations and fluxes from the study sites are comparable to those estimated from literature data for other coal mine sites in the Appalachian region. The total flux estimated from a dataset of 140 coal mines was comparable in magnitude to the CO (sub 2) emissions from a small coal-fired power plant. The extent of CO (sub 2) degassing from mine waters is poorly constrained because (1) flux estimates can be biased low when acid waters are excluded in alkalinity-based estimates; (2) flux estimates can be biased high if non-carbonate alkalinity is present in the mine waters; and (3) mine waters react rapidly following discharge hampering the measurement process. The study sites presented illustrate the impact of coal mining as an anthropogenic influence on carbon cycling; however, more data are necessary to fully estimate the importance of this impact on regional scales. Copyright 2016 Springer-Verlag Berlin Heidelberg JF - Environmental Earth Sciences AU - Vesper, Dorothy J AU - Moore, Johnathan E AU - Adams, James P Y1 - 2016/02// PY - 2016 DA - February 2016 EP - Article 340 PB - Springer, Berlin VL - 75 IS - 4 SN - 1866-6280, 1866-6280 KW - United States KW - Pennsylvanian KW - Lamberts Run Site KW - suspended materials KW - Blythedale Pennsylvania KW - carbon dioxide KW - major elements KW - carbon KW - alkalinity KW - discharge KW - abandoned mines KW - West Virginia KW - Harrison County West Virginia KW - mines KW - carbonate ion KW - acid mine drainage KW - Paleozoic KW - coal mines KW - Carboniferous KW - solutes KW - pollution KW - Iron Falls Site KW - weathering KW - geochemical cycle KW - Allegheny County Pennsylvania KW - Monongahela Group KW - precipitation KW - Clarksburg West Virginia KW - carbon cycle KW - Pennsylvania KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807505071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Inorganic+carbon+dynamics+and+CO+%28sub+2%29+flux+associated+with+coal-mine+drainage+sites+in+Blythedale+PA+and+Lambert+WV%2C+USA&rft.au=Vesper%2C+Dorothy+J%3BMoore%2C+Johnathan+E%3BAdams%2C+James+P&rft.aulast=Vesper&rft.aufirst=Dorothy&rft.date=2016-02-01&rft.volume=75&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-015-5191-z L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2016-07-29 N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; alkalinity; Allegheny County Pennsylvania; Blythedale Pennsylvania; carbon; carbon cycle; carbon dioxide; carbonate ion; Carboniferous; Clarksburg West Virginia; coal mines; discharge; geochemical cycle; Harrison County West Virginia; Iron Falls Site; Lamberts Run Site; major elements; mines; Monongahela Group; Paleozoic; Pennsylvania; Pennsylvanian; pollution; precipitation; solutes; suspended materials; United States; weathering; West Virginia DO - http://dx.doi.org/10.1007/s12665-015-5191-z ER - TY - JOUR T1 - Prospecting for marine gas hydrate resources AN - 1756508370; 2016-007697 AB - As gas hydrate energy assessment matures worldwide, emphasis has evolved away from confirmation of the mere presence of gas hydrate to the more complex issue of prospecting for those specific accumulations that are viable resource targets. Gas hydrate exploration now integrates the unique pressure and temperature preconditions for gas hydrate occurrence with those concepts and practices that are the basis for conventional oil and gas exploration. We have aimed to assimilate the lessons learned to date in global gas hydrate exploration to outline a generalized prospecting approach as follows: (1) use existing well and geophysical data to delineate the gas hydrate stability zone (GHSZ), (2) identify and evaluate potential direct indications of hydrate occurrence through evaluation of interval of elevated acoustic velocity and/or seismic events of prospective amplitude and polarity, (3) mitigate geologic risk via regional seismic and stratigraphic facies analysis as well as seismic mapping of amplitude distribution along prospective horizons, and (4) mitigate further prospect risk through assessment of the evidence of gas presence and migration into the GHSZ. Although a wide range of occurrence types might ultimately become viable energy supply options, this approach, which has been tested in only a small number of locations worldwide, has directed prospect evaluation toward those sand-hosted, high-saturation occurrences that were presently considered to have the greatest future commercial potential. JF - Interpretation (Tulsa) AU - Boswell, Ray AU - Shipp, Craig AU - Reichel, Thomas AU - Shelander, Dianna AU - Saeki, Tetsuo AU - Frye, Matthew AU - Shedd, William AU - Collett, Timothy S AU - McConnell, Daniel R AU - Anonymous Y1 - 2016/02// PY - 2016 DA - February 2016 SP - SA13 EP - SA24 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 4 IS - 1 SN - 2324-8858, 2324-8858 KW - petroleum exploration KW - geophysical surveys KW - gas hydrates KW - natural gas KW - stability KW - petroleum KW - elastic waves KW - Gulf of Mexico KW - West Pacific KW - evaluation KW - bottom-simulating reflectors KW - ocean floors KW - Northwest Pacific KW - migration KW - seismic profiles KW - Nankai Trough KW - global KW - geophysical methods KW - petroleum accumulation KW - seismic methods KW - detection KW - saturation KW - North Pacific KW - marine methods KW - Pacific Ocean KW - surveys KW - reservoir properties KW - geophysical profiles KW - North Atlantic KW - permeability KW - Atlantic Ocean KW - amplitude KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756508370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Interpretation+%28Tulsa%29&rft.atitle=Prospecting+for+marine+gas+hydrate+resources&rft.au=Boswell%2C+Ray%3BShipp%2C+Craig%3BReichel%2C+Thomas%3BShelander%2C+Dianna%3BSaeki%2C+Tetsuo%3BFrye%2C+Matthew%3BShedd%2C+William%3BCollett%2C+Timothy+S%3BMcConnell%2C+Daniel+R%3BAnonymous&rft.aulast=Boswell&rft.aufirst=Ray&rft.date=2016-02-01&rft.volume=4&rft.issue=1&rft.spage=SA13&rft.isbn=&rft.btitle=&rft.title=Interpretation+%28Tulsa%29&rft.issn=23248858&rft_id=info:doi/10.1190%2FINT-2015-0036.1 L2 - http://library.seg.org/journal/inteio LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 73 N1 - PubXState - OK N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2016-01-14 N1 - SubjectsTermNotLitGenreText - amplitude; Atlantic Ocean; bottom-simulating reflectors; detection; elastic waves; evaluation; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; global; Gulf of Mexico; marine methods; migration; Nankai Trough; natural gas; North Atlantic; North Pacific; Northwest Pacific; ocean floors; Pacific Ocean; permeability; petroleum; petroleum accumulation; petroleum exploration; reservoir properties; saturation; seismic methods; seismic profiles; stability; surveys; West Pacific DO - http://dx.doi.org/10.1190/INT-2015-0036.1 ER - TY - JOUR T1 - Fracture shearing impact on fluid flow AN - 1873350479; 2017-013599 AB - Shear displacement of fractures and faults can occur when subsurface stresses are perturbed. Some of these shear events are measurable as micro-seismic activity, but understanding how a shear event alters initial fracture permeability is poor. When attempting to model how these measured events impact transport in the subsurface improved relationships coupling rock properties, stress state, shear displacement, and the resulting change in fracture permeability are required. This experimental work is designed to examine these relationships. A novel shearing device was created enabling simultaneous fracture shearing, computed tomography (CT) scanning, and permeability measurements of pre-fractured rock cores. Visualizing the change in the fracture geometry via CT while measuring changes in the fracture permeability allows direct isolation of the changes in fracture geometry that impact the bulk permeability changes. In addition, extraction of the fracture geometry enabled direct numerical simulations of flow. This coupling of fine-scale numerical and core-scale experimental results illustrates the impacts of flow channelization and asperity evolution on the migration of fluids in fractures. This presentation reviews the first series of experiments and simulations that were performed with these techniques; shearing of fractured Marcellus shale under various confining pressures. Results show that confining pressure influences the behavior of the sheared fractures, that channelization of fluids through the fractures increases with shearing, and that localized breakages of the fracture drastically alter the bulk fracture permeability. On-going work examining the shearing of fracture CO (sub 2) storage sealing formations will be reviewed as well. JF - Abstracts with Programs - Geological Society of America AU - Crandall, Dustin AU - Moore, Johnathan AU - Stadelman, Matthew AU - Gill, Maggie AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 33 EP - 2 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873350479?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Fracture+shearing+impact+on+fluid+flow&rft.au=Crandall%2C+Dustin%3BMoore%2C+Johnathan%3BStadelman%2C+Matthew%3BGill%2C+Maggie%3BAnonymous&rft.aulast=Crandall&rft.aufirst=Dustin&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Grain scale distribution of rare earth elements in coal ash by SHRIMP-RG ion microprobe AN - 1873350472; 2017-013925 AB - During coal combustion, rare earth elements (REE) are strongly retained in the ash fraction and this behavior has drawn attention to coal ash as a possible source of REE. Knowing how REE are distributed in coal ash is essential to devising extraction strategies and for developing possible approaches to pre-concentrate REE. REE-bearing trace phases are much less commonly observed in coal ash than in the corresponding coal, leading to the suggestion that REE may be partitioned into the glass phase during coal combustion at boiler temperatures. To better understand the distribution of REE in coal ash, in the present study we used the Stanford/USGS SHRIMP-RG ion microprobe to determine grain-scale REE partitioning in coal ash derived from various U.S. and international coals. Prior to SHRIMP-RG analysis, samples were characterized by backscattered electron imaging and wavelength-dispersive elemental mapping, showing constituents of the ash and their major element distributions. SHRIMP-RG microanalysis used a nominal spot size of 15 micrometers and an oxygen negative-ion primary beam. NIST multi-element glass standards SRM 611 and SRM 613 were used for REE calibration. Results confirm the occurrence of REE in aluminosilicate glasses at concentrations that span those of the respective bulk coal ash samples. Co-occurring quartz and/or high-silica glasses generally have much lower REE contents than aluminosilicate glasses, consistent with results for bulk coal ash samples showing a strong positive correlation between Al and REE content. Fe-oxide spheres were found to have variable REE contents. Results suggest that total digestion of the aluminosilicate glass fraction in coal ash will yield a significant portion of the REE present and that limited pre-concentration may be accomplished by removing the least REE-enriched fractions. JF - Abstracts with Programs - Geological Society of America AU - Kolker, Allan AU - Scott, Clint AU - Hower, James C AU - Vazquez, Jorge A AU - Lopano, Christina L AU - Deonarine, Amrika AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 181 EP - 7 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 06B:Petrology of coal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873350472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Grain+scale+distribution+of+rare+earth+elements+in+coal+ash+by+SHRIMP-RG+ion+microprobe&rft.au=Kolker%2C+Allan%3BScott%2C+Clint%3BHower%2C+James+C%3BVazquez%2C+Jorge+A%3BLopano%2C+Christina+L%3BDeonarine%2C+Amrika%3BAnonymous&rft.aulast=Kolker&rft.aufirst=Allan&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Suitability analysis of geothermal energy potential in the Pittsburgh, Pennsylvania area AN - 1873349602; 2017-014027 AB - Enhanced Geothermal Systems (EGS) especially with low-grade systems are getting more recognition as a viable source for district heating and cooling. With that growing interest, the city of Pittsburgh, Pennsylvania wants to establish a sustainable residential/commercial district in which geothermal solutions will be used for direct heating/cooling. This study focuses on suitable areas in both the surface and subsurface for low grade EGS potential in and surrounding Pittsburgh in greater detail. Data from the National Geothermal Data System was used to interpolate temperature gradient and heat flow using the natural neighbor method. United States Geological Survey (USGS) and Information Handling Services (IHS) data were used to determine the thicknesses of formations. Temperature gradients in the area ranged from 13-22 degrees C/km with the target area being 19-20 degrees C/km. Heat flow ranged from 35-60 mW/m (super 2) with the target area being 46-60 mW/m (super 2) . The temperature gradient was used to create subsea depth to 80 degrees C and subsea depth to 150 degrees C maps showing a range of -3809 to -3048 m and -7619 to -6858 m respectively. Preliminary suitability analysis using normalized values of the temperature gradient and heat flow shows that the area of interest has a relatively low geothermal potential compared to the rest of the Pittsburgh vicinity. Well data reveals nearby inactive wells completed before 1962 with the nearest one to the area of interest being 656 m deep and completed in 1913. A model was used to calculate years to abandonment and monthly flow rate. For a sandstone layer 61 m thick at a depth of 3810 m, the model shows 25 years (54.4 degrees C water in, 65.6 degrees C water out) and 14 years (71.1 degrees C water in, 82.2 degrees C water out). An estimated cost for a well that has a measured depth of 5000 m is around $15-17 million. JF - Abstracts with Programs - Geological Society of America AU - Miller, Roy H, III AU - Justman, Devin AU - Sams, Neal AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 213 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873349602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Suitability+analysis+of+geothermal+energy+potential+in+the+Pittsburgh%2C+Pennsylvania+area&rft.au=Miller%2C+Roy+H%2C+III%3BJustman%2C+Devin%3BSams%2C+Neal%3BAnonymous&rft.aulast=Miller&rft.aufirst=Roy&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Evidence of rare earth element enrichment in sedimentary rocks from Pennsylvania AN - 1873349457; 2017-014017 AB - Sedimentary rocks that comprise the overburden and underclay near coal seams in central Pennsylvania have been investigated as sources of rare earth and critical elements. More than 400 surface exposures and drill core samples were studied and more are being added to the data set regularly. A rigorous statistical analysis of the sample set was completed and a comparison with standard reference materials was performed. Data indicate that the rocks in this study are enriched in total rare earth elements compared to both the NASC and PAAS. Pearson correlation studies indicate that the light rare earth elements are likely concentrated in phosphate minerals and the heavy rare earth elements are correlated with iron-bearing mineral phases. A correlation of total rare earth elements with Ti/Al in stratigraphically collected samples indicates that in some sample locations high total REE contents occur in samples where depositional rates were highest. These data support the hypothesis that REE are physically weathered into the sedimentary rocks and that chemical erosion was minimal. In other sample locations, geochemical and mineralogical evidence supports aqueous remobilization of REE and critical elements. In these cases, minor deposits of adsorbed REE, similar to the ion adsorbed REE deposits of China, may have formed. JF - Abstracts with Programs - Geological Society of America AU - Bank, Tracy L AU - Roth, Elliot AU - Howard, Bret AU - Granite, Evan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 212 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873349457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Evidence+of+rare+earth+element+enrichment+in+sedimentary+rocks+from+Pennsylvania&rft.au=Bank%2C+Tracy+L%3BRoth%2C+Elliot%3BHoward%2C+Bret%3BGranite%2C+Evan%3BAnonymous&rft.aulast=Bank&rft.aufirst=Tracy&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - The successful development of shale gas resources in the United States AN - 1873349293; 2017-013708 AB - In response to the price hikes and fuel shortages caused by the 1973-1974 oil embargo, the U.S. government initiated a number of research programs to develop domestic sources of oil and natural gas. The Eastern Gas Shales Project (EGSP) was intended to help industry overcome the challenges of recovering natural gas from organic-rich, low permeability, Devonian-age shales in the eastern United States. When the U. S. Department of Energy (DOE) was created in August 1977, the EGSP became its responsibility. The EGSP characterized oriented drill core from 44 wells targeting a variety of Devonian shale formations in the Michigan, Illinois, and Appalachian Basins. The program objectives were to assess the resource, develop effective extraction technology, and transfer such knowledge to industry. The program ended in 1992. Mitchell Energy had been pursuing shale gas since the early days of the EGSP, and achieved commercial success in 1997 on the Barnett Shale in the Fort Worth Basin of Texas. Mitchell applied offshore directional drilling technology to construct long horizontal wells, and staged hydraulic fracturing to stimulate large volumes of rock. The Fayetteville Shale in Arkansas and the Haynesville Shale in Louisiana were developed a few years later using the Mitchell methods. Range Resources drilled the Renz #1 well in Pennsylvania to a Silurian target formation in 2005, which showed little gas potential. However, evidence of gas in the overlying Marcellus Shale led Range to review the EGSP data, and the well was successfully recompleted in the Marcellus. Thus encouraged, Range experimented with the Mitchell Energy horizontal drilling and hydraulic fracturing techniques on the Marcellus, eventually completing the Gulla #9 well with an initial gas production rate of nearly 142,000 cubic meters (5 MMCF) per day. Other wells soon followed, developing the play remarkably within five years. The success in the Marcellus led to the subsequent development of additional shale resources, including the Niobrara in Colorado and Wyoming, the Woodford in Oklahoma, the Utica in Ohio, and the Eagle Ford in Texas. The development of the gigantic Bakken Shale oil play in North Dakota has made it the second largest oil producing state in the U. S. after Texas. Gas and oil from shale are likely to remain important energy resources in the future. JF - Abstracts with Programs - Geological Society of America AU - Soeder, Daniel J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 90 EP - 1 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873349293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+successful+development+of+shale+gas+resources+in+the+United+States&rft.au=Soeder%2C+Daniel+J%3BAnonymous&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Intelligent Monitoring System development being conducted by the Department of Energy (DOE)/National Energy Technology Laboratory (NETL) for geologic storage of CO (sub 2) AN - 1873348545; 2017-014067 AB - An Intelligent Monitoring System (IMS) is an integrated reservoir management technology that combines near real-time measurement of reservoir properties, with project-specific data management and data processing workflows, collaborative approaches to interpretation and decision making, and automated production or injection control capabilities. IMS strategies are used primarily in oilfield applications, but many of their components are readily adaptable to CO (sub 2) storage projects. New and distinct IMS components are needed to address storage-specific objectives and challenges for both enhanced oil recovery (EOR) and saline CO (sub 2) storage activities. It is envisioned that an IMS system will contribute to workers safety, reservoir surveillance, well surveillance, surface process surveillance, pipeline surveillance, and real time system optimization, resulting in greater efficiency and reduced costs. IMS is a broad technology area, encompassing sensors and actuators, hardware and software tools for data acquisition, management, transmission, and software tools for modeling and visualization. The DOE Carbon Storage Program is developing an integrated IMS architecture to help commercialize carbon capture and storage (CCS) by developing high resolution, long-term or permanent systems to monitor the behavior of the CO (sub 2) in the reservoir, detect possible leakage pathways, and quantify any leakage volumes. Improved systems are needed to monitor the surface, wellbores, and the subsurface. Software tools for modeling, analysis, and integration are critical components of an IMS. The Storage Program is developing software tools such as neural networks, artificial intelligence and soft computing technologies for decision making and optimization of reservoir management. These software tools would be combined with coupled modeling codes to evaluate collected data and present the analysis in a user friendly format for decision makers. Optimization of injection operations in CO (sub 2) storage projects would include tools for decision making, closed-loop reservoir process control, detection and processing of events. A fully integrated IMS system at a commercial CCS facility should provide timely information and automate some of the routine process thus resulting in significant cost savings. JF - Abstracts with Programs - Geological Society of America AU - Dressel, Brian W AU - Mahajan, Kanwal AU - Rodosta, Traci AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 216 EP - 12 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873348545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Intelligent+Monitoring+System+development+being+conducted+by+the+Department+of+Energy+%28DOE%29%2FNational+Energy+Technology+Laboratory+%28NETL%29+for+geologic+storage+of+CO+%28sub+2%29&rft.au=Dressel%2C+Brian+W%3BMahajan%2C+Kanwal%3BRodosta%2C+Traci%3BAnonymous&rft.aulast=Dressel&rft.aufirst=Brian&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Air quality and greenhouse gas impacts from unconventional natural gas development AN - 1873347517; 2017-013715 AB - Recent technological advances in horizontal drilling and hydraulic fracturing have led to the widespread use in attempts to access natural gas in shale formations despite uncertainties relating to the possible environmental impact. Unconventional natural gas (UNG) development activities generate a complex mixture of emissions that could potentially degrade local and regional air quality. Airborne pollutants such as methane (CH (sub 4) ), carbon dioxide (CO (sub 2) ), nitrogen oxides (NO (sub x) ), volatile organic compounds (VOCs) and particulate matter (PM) are all emitted from multiple point sources throughout the various stages of operation (well pad construction, vertical drilling, horizontal drilling, hydraulic fracturing, flowback, and production). Additional negative impacts to air quality can result from the reaction of VOCs and NO (sub x) to form ground-level ozone and particulate matter. The variability and complexity of these emissions make an unconventional shale gas development site difficult to characterize as an air pollutant source. Research on local and regional air quality impacts of unconventional natural gas development at the National Energy Technology Laboratory (NETL) has focused on conducting multiple targeted on-site measurements of emissions from gas production activities using a trailer-based air monitoring laboratory. The temperature controlled laboratory contains several instruments that automatically collect continuous data (with one-minute to one-hour resolution) that can be accessed via satellite. The data collected from the monitoring campaigns is used as input or to verify both atmospheric chemistry and transport models and life cycle assessments of natural gas development greenhouse gas emissions. These models help assess the impact that unconventional gas development activities have on local and regional air quality. Such improved evaluations facilitate more informed decision making for regulatory and permitting applications. JF - Abstracts with Programs - Geological Society of America AU - Reeder, Matthew AU - Pekney, Natalie AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 90 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873347517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Air+quality+and+greenhouse+gas+impacts+from+unconventional+natural+gas+development&rft.au=Reeder%2C+Matthew%3BPekney%2C+Natalie%3BAnonymous&rft.aulast=Reeder&rft.aufirst=Matthew&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Air quality and greenhouse gas impacts from unconventional natural gas development AN - 1861111720; 787350-29 AB - Recent technological advances in horizontal drilling and hydraulic fracturing have led to the widespread use in attempts to access natural gas in shale formations despite uncertainties relating to the possible environmental impact. Unconventional natural gas (UNG) development activities generate a complex mixture of emissions that could potentially degrade local and regional air quality. Airborne pollutants such as methane (CH4), carbon dioxide (CO2), nitrogen oxides (NOx), volatile organic compounds (VOCs) and particulate matter (PM) are all emitted from multiple point sources throughout the various stages of operation (well pad construction, vertical drilling, horizontal drilling, hydraulic fracturing, flowback, and production). Additional negative impacts to air quality can result from the reaction of VOCs and NOx to form ground-level ozone and particulate matter. The variability and complexity of these emissions make an unconventional shale gas development site difficult to characterize as an air pollutant source. Research on local and regional air quality impacts of unconventional natural gas development at the National Energy Technology Laboratory (NETL) has focused on conducting multiple targeted on-site measurements of emissions from gas production activities using a trailer-based air monitoring laboratory. The temperature controlled laboratory contains several instruments that automatically collect continuous data (with one-minute to one-hour resolution) that can be accessed via satellite. The data collected from the monitoring campaigns is used as input or to verify both atmospheric chemistry and transport models and life cycle assessments of natural gas development greenhouse gas emissions. These models help assess the impact that unconventional gas development activities have on local and regional air quality. Such improved evaluations facilitate more informed decision making for regulatory and permitting applications. JF - Abstracts with Programs - Geological Society of America AU - Reeder, Matthew AU - Pekney, Natalie AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 90 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861111720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Air+quality+and+greenhouse+gas+impacts+from+unconventional+natural+gas+development&rft.au=Reeder%2C+Matthew%3BPekney%2C+Natalie%3BAnonymous&rft.aulast=Reeder&rft.aufirst=Matthew&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Geochemical characteristics of drill cuttings from Marcellus Shale energy development AN - 1861108998; 787354-26 AB - Drilling operations for Marcellus shale gas development generate tons of drill cuttings per well. These drill cuttings are destined for landfill disposal, in-situ burial, and potential reuse as road fill. The drill cuttings resulting from the horizontal drilling into the Marcellus formation in particular contain significant amounts of fine-grained black shale rock cuttings, rich in organic matter and trace metal content. aLeaching tests were performed in order to evaluate the leachability of metals from drill cuttings under various environmental conditions, particularly from the Marcellus horizon. Understanding the geochemical characteristics of the Marcellus shale drill cuttings will assist in making waste management decisions. a Twenty-two drill cutting samples were obtained from the Marcellus Shale Energy and Environment Laboratory (MSEEL) in WV. Cuttings were collected along 320 ft intervals during horizontal drilling of a well into the Marcellus formation. These drill cuttings were analyzed for elemental composition by inductively coupled plasma-mass spectroscopy (ICP-MS), total carbon and sulfur via CHNS/O elemental analysis, and mineral phases by X-ray diffraction (XRD). Trace metal associations were mapped by micro X-ray fluorescence (mu -XRF) at Stanford Synchrotron Light Source (SSRL). Preliminary results show that cutting samples containing trace metals such as: As, U, Zn, and Cu, tend to be samples that have high organic carbon (up to 10.3 wt%) and pyrite content. Micro-XRF mapping shows 50-100mu m size U, As and Cu hotspots, mainly co-localized with small Fe grains (50-200 mu m), or distributed on larger Fe grains (0.5-2 mm). Barium content is elevated throughout all samples ( nearly equal 5 wt%) and can in part be attributed to residual drill mud. aMicro-XRF mapping reveals Ba coatings on mineral grains, which supports Ba being primarily from residual drilling muds in these samples. aLeaching tests further identify various leaching conditions influencing trace metal mobility, such as different leachate composition (simulating rainfall or landfill conditions), pH and liquid: solid ratio. Tests are designed to mimic short-term and long-term leaching tests under different conditions in order to evaluate key elements to monitor in Marcellus shale drill cutting disposal scenarios. a JF - Abstracts with Programs - Geological Society of America AU - Lopano, Christina L AU - Stuckman, Mengling AU - Y , Hakala AU - J, Alexandra AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 122 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geochemical+characteristics+of+drill+cuttings+from+Marcellus+Shale+energy+development&rft.au=Lopano%2C+Christina+L%3BStuckman%2C+Mengling%3BY+%2C+Hakala%3BJ%2C+Alexandra%3BAnonymous&rft.aulast=Lopano&rft.aufirst=Christina&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Use of a portable X-ray fluorescence detector for determination of rare Earth elements in coal byproducts AN - 1861108721; 787354-83 AB - The rare earth elements, or the lanthanides, have become increasingly sought after in recent years because of their wide range of uses in consumer goods, notably magnets, rechargeable batteries, and polishing powder. Researchers have been trying to find a way to extract rare earth elements from low REE concentrated secondary sources as a byproduct from already-existing processes such as coal mining in order to reduce waste, energy consumption, and cost. Portable XRF could be a useful tool in this process because of its ability to analyze coal and other field materials on-site, but its accuracy in reporting REE data at low concentrations has been questionable. This study will use a portable Niton XL3t GOLDD+ XRF Analyzer to analyze materials associated with coal. The focus will be the lanthanide elements and elements that are associated with REE, such as thorium and yttrium. Determining whether a portable XRF device can provide accurate data about the concentration of rare earth elements in materials associated with a coal deposit will be discussed. Optimal settings such as mode, time, and sample preparation will be studied. Different calibration methods such as method of standard additions will also be examined. JF - Abstracts with Programs - Geological Society of America AU - Roth, Elliot AU - Bank, Tracy L AU - Keegan, Emma AU - Granite, Evan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 128 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Use+of+a+portable+X-ray+fluorescence+detector+for+determination+of+rare+Earth+elements+in+coal+byproducts&rft.au=Roth%2C+Elliot%3BBank%2C+Tracy+L%3BKeegan%2C+Emma%3BGranite%2C+Evan%3BAnonymous&rft.aulast=Roth&rft.aufirst=Elliot&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Fracture shearing impact on fluid flow AN - 1861101240; 787342-13 AB - Shear displacement of fractures and faults can occur when subsurface stresses are perturbed. Some of these shear events are measurable as micro-seismic activity, but understanding how a shear event alters initial fracture permeability is poor. When attempting to model how these measured events impact transport in the subsurface improved relationships coupling rock properties, stress state, shear displacement, and the resulting change in fracture permeability are required. This experimental work is designed to examine these relationships. A novel shearing device was created enabling simultaneous fracture shearing, computed tomography (CT) scanning, and permeability measurements of pre-fractured rock cores. Visualizing the change in the fracture geometry via CT while measuring changes in the fracture permeability allows direct isolation of the changes in fracture geometry that impact the bulk permeability changes. In addition, extraction of the fracture geometry enabled direct numerical simulations of flow. This coupling of fine-scale numerical and core-scale experimental results illustrates the impacts of flow channelization and asperity evolution on the migration of fluids in fractures. This presentation reviews the first series of experiments and simulations that were performed with these techniques; shearing of fractured Marcellus shale under various confining pressures. Results show that confining pressure influences the behavior of the sheared fractures, that channelization of fluids through the fractures increases with shearing, and that localized breakages of the fracture drastically alter the bulk fracture permeability. On-going work examining the shearing of fracture CO2 storage sealing formations will be reviewed as well. JF - Abstracts with Programs - Geological Society of America AU - Crandall, Dustin AU - Moore, Johnathan AU - Stadelman, Matthew AU - Gill, Maggie AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 33 EP - 2 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Fracture+shearing+impact+on+fluid+flow&rft.au=Crandall%2C+Dustin%3BMoore%2C+Johnathan%3BStadelman%2C+Matthew%3BGill%2C+Maggie%3BAnonymous&rft.aulast=Crandall&rft.aufirst=Dustin&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - The mechanism of faulting regimes change over depths in the sedimentary layers in an intracratonic basin AN - 1832596710; 772406-10 AB - It has long been found that faulting regimes can change over depths at a similar location in a sedimentary basin. Such knowledge is very important for the estimation of the magnitude and orientation of the in situ stress, which are generally very difficult to estimate because of many uncertain factors, such as tectonic movement, rock heterogeneities, discontinuities, pore pressures, heat flow, etc. In comparison with many other geological settings, a stable intracratonic basin has a relatively flat structure that allows for a tractable numerical conceptualization to be made to help understand the faulting regime conditions. Some intracratonic basins such as the Williston Basin (USA), the Tarim Basin (China), and the Siberia Basin (Russia) are important sites to host oil reservoirs and may also provide the spaces for CO (sub 2) sequestration. In this paper, numerical simulation is used to characterize the Illinois Basin in North America. This paper presents the methodology for estimating the in situ stress conditions of an intracratonic basin using a poroelastic model. The numerical simulation results show that a thrust-faulting regime is expected at shallow depths, while the three principal stresses are close in magnitude at intermediate depths. A strike-faulting regime dominates at great depths, which corresponds to the continental stress pattern. Such an in situ stress pattern is shared by another intracratonic basin in the North America-the Williston Basin. This methodology is also applicable to estimate in situ stress for other intracratonic basins worldwidely. Copyright 2016 Saudi Society for Geosciences and 2015 Saudi Society for Geosciences (outside the USA) JF - Arabian Journal of Geosciences AU - Zhou, Xuejun AU - Burbey, Thomas J Y1 - 2016/01// PY - 2016 DA - January 2016 EP - Article 10 PB - Springer, Berlin-Heidelberg VL - 9 IS - 1 SN - 1866-7511, 1866-7511 KW - upper crust KW - United States KW - rock masses KW - Illinois Basin KW - numerical models KW - sedimentary basins KW - stress KW - simulation KW - deep-seated structures KW - intracratonic basins KW - pore pressure KW - movement KW - basins KW - tectonics KW - faults KW - crust KW - anisotropy KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832596710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Arabian+Journal+of+Geosciences&rft.atitle=The+mechanism+of+faulting+regimes+change+over+depths+in+the+sedimentary+layers+in+an+intracratonic+basin&rft.au=Zhou%2C+Xuejun%3BBurbey%2C+Thomas+J&rft.aulast=Zhou&rft.aufirst=Xuejun&rft.date=2016-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.springer.com/earth+sciences/journal/12517 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 53 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - anisotropy; basins; crust; deep-seated structures; faults; Illinois Basin; intracratonic basins; movement; numerical models; pore pressure; rock masses; sedimentary basins; simulation; stress; tectonics; United States; upper crust DO - http://dx.doi.org/10.1007/s12517-015-2053-7 ER - TY - JOUR T1 - Studies on the use of alginate gel polymers as selective adsorbents of rare earth elements from aqueous solutions AN - 1819895173; 2016-081066 AB - Rare earth elements (REEs) have unique physicochemical properties that make them essential elements in many high-tech components. In general, the abundance of REEs produced by aqueous extraction processes is low. Additionally, most samples contain elements that interfere with the determination of REEs, so that separation and pre-concentration steps are often necessary. A number of techniques based on ion-exchange resins and solvent extraction have been studied and proposed. In the present work, the feasibility of using alginate gel for REE recovery and separation was examined. Alginic acid is a linear copolymer consisting of D-mannuronic and L-guluronic acids that forms hydrogels with many divalent cations, including Ca(II), Ba(II), Sr(II), Cu(II), Pb(II) and others. In our experiments, the gel beads were formed by dropping 2% sodium alginate directly into aqueous solutions of REEs with various mixtures of divalent cations. Modifications of solid alginate beads made by dosing with compounds capable of generating specific REE-binding ligands were also tested. We examined how specific REEs were selectively sequestered within alginate gel via gel polymerization and by further diffusion and potential displacement reactions. The data are discussed relative to improvements in the analytical quantification of low level REEs and with regard to potential applications of this technique for fast and complete recovery of REE from complex matrices. JF - Abstracts with Programs - Geological Society of America AU - Jain, Jinesh C AU - Edenborn, H M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 57 EP - 5 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 2 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895173?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Studies+on+the+use+of+alginate+gel+polymers+as+selective+adsorbents+of+rare+earth+elements+from+aqueous+solutions&rft.au=Jain%2C+Jinesh+C%3BEdenborn%2C+H+M%3BAnonymous&rft.aulast=Jain&rft.aufirst=Jinesh&rft.date=2016-01-01&rft.volume=48&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016NE-272584 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 51st annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-09-16 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NE-272584 ER - TY - JOUR T1 - Direct evidence for perennial ice in eastern North American cold traps AN - 1807509340; 2016-067427 AB - In the late 1800s, climatologist Edwin Balch visited 33 sites in eastern North America that were known or rumored to retain ice for longer periods of time than was usual for their surroundings. These cold traps, which Balch termed "glacieres naturelles" or natural refrigerators, were found in ravines and gorges, taluses and boulder heaps, as well as in man-made wells, mines and tunnels from West Virginia northward into New England. Despite local reports to the contrary, no perennial ice was ever observed by Balch, although accumulated ice from the winter and spring clearly persisted for an unusually long time at sites where it was naturally or artificially protected from the sun and wind in the summer. Cold air coming from the base of talus slopes throughout the summer suggested the possible continued presence of ice deep in the talus, but this could not be confirmed. In the current study, we used temperature data loggers to monitor the thermal regime of cold traps in Pennsylvania and New York where ice exhibited unusual persistence: these sites included man-made mine shafts ("ice mines"), a talus slope, two "rock cities," and a collapsed anthracite coal mine. Perennial ice was demonstrated at two of these sites for the first time during the 2014-2015 season. In both cases, deep man-made recesses allowed the accumulation of significant ice relative to the volume and configuration of the cold trap; in summer, thermal stratification of the air mass further minimized the introduction of warm air and limited the melting of ice. Ice did not persist at sites where the winter/spring accumulation was not sufficient to maintain thermal stratification of the air mass. Sufficient annual melting occurred at sites with perennial ice such that little, if any, continuous ice accumulation over longer periods of time would be expected in the current climate. Most locations in the northeastern United States where the mean annual temperature is lower than the surrounding region are unlikely to develop perennial ice in the absence of heavy winter snow accumulation and sub-freezing spring temperatures. Perennial ice development appears to be restricted to very specific sites with unique geographical features that protect accumulated ice and snow from sunlight and the incursion of warm air. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, H M AU - Turner, G R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 6 EP - 13 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 2 SN - 0016-7592, 0016-7592 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807509340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Direct+evidence+for+perennial+ice+in+eastern+North+American+cold+traps&rft.au=Edenborn%2C+H+M%3BTurner%2C+G+R%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=H&rft.date=2016-01-01&rft.volume=48&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016NE-272502 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 51st annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-07-29 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NE-272502 ER - TY - JOUR T1 - Coal combustion by-products and shale gas well drill cuttings as plant growth media for green roofs; results of roof experiments AN - 1807508923; 2016-067428 AB - Green roofs are layers of planting material and plants on building roofs that retain, filter, treat, and reduce storm water runoff, as well as insulate buildings. Green roof growth substrates must be relatively light-weight, retain moisture, be composed of non-toxic materials that do not pollute the associated rainfall and runoff, and allow plant growth. Expanded shales and clays are the most commonly used commercial substrates for this purpose, but they are produced by heating in a high-temperature rotary kiln that requires significant energy input. We are examining the short- and long-term impacts of supplementing conventional green roof growth substrates with available waste products from coal-fired power plants and gas well operations, such as fly and bottom ashes and drill cuttings. These materials may represent satisfactory substitutes for some fraction of less energy efficient growth substrate materials. However, they also have the potential to introduce unacceptable levels of inorganic and organic contaminants to roof runoff, adversely modify soil and runoff pH, and limit plant growth. The screening of over 50 fly and bottom ashes from coal combustion power plants leached with natural rainwater showed a wide range in metal concentrations, with specific heavy metals (Co, Cu, Mn) associated with low pH materials, and As and Cr associated with high pH material. Drill cuttings from a Marcellus gas well in southwestern PA generated high salinity water that was detrimental to seed germination but was rapidly rinsed by rainfall from the solid material. Sedum plants were grown for 16 months on a green roof in pots containing different combinations of coal combustion materials, drill cuttings, conventional green roof soils, and slow-release fertilizer. Plant growth was maximal in the presence of added fertilizer regardless of the primary growth substrate used. Cumulative observations on the growth, germination, and the bioaccumulation of metals and metalloids in the plants are discussed. JF - Abstracts with Programs - Geological Society of America AU - Jain, Jinesh C AU - Edenborn, H M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 6 EP - 14 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 2 SN - 0016-7592, 0016-7592 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807508923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Coal+combustion+by-products+and+shale+gas+well+drill+cuttings+as+plant+growth+media+for+green+roofs%3B+results+of+roof+experiments&rft.au=Jain%2C+Jinesh+C%3BEdenborn%2C+H+M%3BAnonymous&rft.aulast=Jain&rft.aufirst=Jinesh&rft.date=2016-01-01&rft.volume=48&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016NE-272551 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 51st annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-07-29 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NE-272551 ER - TY - JOUR T1 - Gel diffusion studies on factors affecting barite scaling in Marcellus Shale gas wells AN - 1807508614; 2016-067437 AB - The formation of barite (BaSO (sub 4) ) scale can reduce production in oil and gas fields by blocking fractures and reducing the porosity of reservoir rock. Due to the low solubility of barite, chemical approaches to scale prevention involving chelation or inhibition of crystal growth often have limited success in oil field wells. Saline produced waters from Marcellus shale gas wells contain elevated levels of barium, and geochemical equilibrium modeling of these waters indicates that barite is supersaturated throughout the system. Anti-scalant compounds are routinely added to injected waters at Marcellus gas wells as a precautionary measure. Previous laboratory flow-through experiments conducted with recycled produced water, fracturing fluid and Marcellus shale demonstrated barite precipitation on fracture surfaces. Specific factors that may affect barite precipitation in the field, such as pH, solute concentration, the presence of anti-scalant compounds, diffusion gradients, and nucleation sites, are difficult to study based solely on water quality analyses and flow-through laboratory experiments. In this study, we examined physical and chemical factors affecting barite precipitation in Marcellus shale gas waters using two-dimensional diffusion gradient agarose and silica gels. This method allows the counter diffusion of selected ions or chemicals towards each other under conditions of controlled gel permeability and temperature. Using time-lapse photography, the formation of mineral precipitates can be visualized, and changes in precipitation rates due to changes in reactant mixtures and concentrations can be determined. Primary reactant distribution in gels was determined by slicing gels and analyzing the contents, and by microelectrode profiling. Variables potentially influencing barite precipitation in Marcellus waters were tested, including pH, salinity, temperature, major cations in production water (Ba, Sr, Ca), sulfate, and anti-scalant chemicals used to minimize barite precipitation. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, H M AU - Hakala, J Alexandra AU - Paukert, Amelia AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 7 EP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 2 SN - 0016-7592, 0016-7592 KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807508614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=New+Lapses+Cited+at+Supplier+of+J%26amp%3BJ%27s+Doxil&rft.au=Loftus%2C+Peter&rft.aulast=Loftus&rft.aufirst=Peter&rft.date=2011-12-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 51st annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-07-29 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NE-272479 ER - TY - JOUR T1 - Influence of H (sub 2) S on the analysis of CO (sub 2) using the volumetric expansion method in well waters associated with CO (sub 2) -enhanced oil recovery AN - 1807507819; 2016-067438 AB - Carbon dioxide-enhanced oil recovery (EOR) is a method used to supplement conventional water flooding approaches and flush residual crude oil from subsurface rock formations towards production wells for recovery. CO (sub 2) is injected along with water under pressure and it moves through the pore spaces of the rock, mixes with and lowers the viscosity of the oil, and helps displace oil from the rock formation. The concentration of CO (sub 2) in production water is needed to determine CO (sub 2) breakthrough rates at the production well, as well as identify potential paths of CO (sub 2) leakage into groundwater reservoirs. The CarboQC carbonation meter is used to measure the concentration of CO (sub 2) in water under field conditions by monitoring the temperature and pressure changes during the multiple expansion of a sealed volume of water and calculating the PCO2 from the ideal gas law. This method is effective using carbonated beverages and most natural waters because the solubility of potentially interfering common gases such as O (sub 2) and N (sub 2) is more than 50 times lower in water than it is for CO (sub 2) . Hydrogen sulfide (H (sub 2) S), which is even more soluble than CO (sub 2) in water, is sometimes encountered in very high concentrations in water associated with high-sulfur petroleum deposits or natural gas production, and this directly interferes with CO (sub 2) analysis by volumetric expansion. In this study, we examined the effects of H (sub 2) S on CO (sub 2) measurements in saline produced waters from EOR wells in Texas. Two methods were tested as ways to subtract H (sub 2) S from the dissolved gas fraction. Sulfide was oxidized with hydrogen peroxide, which produced elemental sulfur or sulfate as a reaction product depending on the pH of the water sample, but this generated gas pressure due to peroxide reaction with other organics. Copper sulfate was added to eliminate the dissolved sulfide via precipitation of highly insoluble copper sulfides. Copper sulfides were rapidly precipitated in EOR well samples, but the reaction simultaneously lowered the pH relative to the amount of sulfide present. This resulted in a variable increase in the measured CO (sub 2) due to the conversion of bicarbonate ion to carbonic acid. The potential for this analytical approach to be effective in such waters is further discussed relative to dissolved inorganic carbon content in water and the potential interactions between CO (sub 2) and H (sub 2) S. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, H M AU - Vesper, Dorothy J AU - Jain, Jinesh C AU - Hakala, J Alexandra AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 7 EP - 5 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 2 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807507819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Influence+of+H+%28sub+2%29+S+on+the+analysis+of+CO+%28sub+2%29+using+the+volumetric+expansion+method+in+well+waters+associated+with+CO+%28sub+2%29+-enhanced+oil+recovery&rft.au=Edenborn%2C+H+M%3BVesper%2C+Dorothy+J%3BJain%2C+Jinesh+C%3BHakala%2C+J+Alexandra%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=H&rft.date=2016-01-01&rft.volume=48&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016NE-272496 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 51st annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-07-29 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NE-272496 ER - TY - JOUR T1 - Minimizing the fluid used to induce fracturing AN - 1849311062; 2016-109403 AB - The less fluid injected to induce fracturing means less fluid needing to be produced before gas is produced. One method is to inject as fast as possible until the desired fracture length is obtained. Presented is an alternative injection strategy derived by applying optimal system control theory to the macroscopic mass balance. The picture is that the fracture is constant in aperture, fluid is injected at a controlled rate at the near end, and the fracture unzips at the far end until the desired length is obtained. The velocity of the fluid is governed by Darcy's law with larger permeability for flow along the fracture length. Fracture growth is monitored through micro-seismicity. Since the fluid is assumed to be incompressible, the rate at which fluid is injected is balanced by rate of fracture growth and rate of loss to bounding rock. Minimizing injected fluid loss to the bounding rock is the same as minimizing total injected fluid How to change the injection rate so as to minimize the total injected fluid is a problem in optimal control. For a given total length, the variation of the injected rate is determined by variations in overall time needed to obtain the desired fracture length, the length at any time, and the rate at which the fracture is growing at that time. Optimal control theory leads to a boundary condition and an ordinary differential equation in time whose solution is an injection protocol that minimizes the fluid used under the stated assumptions. That method is to monitor the rate at which the square of the fracture length is growing and adjust the injection rate proportionately. JF - American Geophysical Union Fall Meeting AU - Boyle, Edward J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51M EP - 1571 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849311062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Minimizing+the+fluid+used+to+induce+fracturing&rft.au=Boyle%2C+Edward+J%3BAnonymous&rft.aulast=Boyle&rft.aufirst=Edward&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The DOE subsurface (SubTER) initiative; revolutionizing responsible use of the subsurface for energy production and storage AN - 1849310478; 2016-109393 AB - The subsurface supplies more than 80% of the U.S.'s total energy needs through geothermal and hydrocarbon strategies and also provides vast potential for safe storage of CO (sub 2) and disposal of nuclear waste. Responsible and efficient use of the subsurface poses many challenges, many of which require the capability to monitor and manipulate sub-surface stress, fractures, and fluid flow at all scales. Adaptive control of subsurface fractures and flow is a multi-disciplinary challenge that, if achieved, has the potential to transform all subsurface energy strategies. As part of the U.S. Department of Energy's SubTER (Subsurface Technology and Engineering Research development and demonstration) initiative, a multi-National Laboratory team is developing next-generation approaches that will allow for adaptive control of subsurface fractures and flow. SubTER has identified an initial suite of technical thrust areas to focus work, and has initiated a number of small projects. This presentation will describe early progress associated with the SubTER technical topic areas of wellbore integrity, subsurface stress and induced seismicity, permeability manipulation and new subsurface signals. It will also describe SubTER plans, and provide a venue to solicit suggestions and discuss potential partnerships associated with future research directions. JF - American Geophysical Union Fall Meeting AU - Hubbard, Susan S AU - Walck, Marianne C AU - Blankenship, Doug AU - Bonneville, Alain AU - Bromhal, Grant S AU - Daley, Thomas M AU - Pawar, Rajesh AU - Polsky, Yarom AU - Mattson, Earl AU - Mellors, Roberts J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51M EP - 1561 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+DOE+subsurface+%28SubTER%29+initiative%3B+revolutionizing+responsible+use+of+the+subsurface+for+energy+production+and+storage&rft.au=Hubbard%2C+Susan+S%3BWalck%2C+Marianne+C%3BBlankenship%2C+Doug%3BBonneville%2C+Alain%3BBromhal%2C+Grant+S%3BDaley%2C+Thomas+M%3BPawar%2C+Rajesh%3BPolsky%2C+Yarom%3BMattson%2C+Earl%3BMellors%2C+Roberts+J%3BAnonymous&rft.aulast=Hubbard&rft.aufirst=Susan&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - NETL's Energy Data Exchange (EDX); a coordination, collaboration, and data resource discovery platform for energy science AN - 1844920798; 2016-100734 AB - Multi-organizational research teams working jointly on projects often encounter problems with discovery, access to relevant existing resources, and data sharing due to large file sizes, inappropriate file formats, or other inefficient options that make collaboration difficult. The Energy Data eXchange (EDX) from Department of Energy's (DOE) National Energy Technology Laboratory (NETL) is an evolving online research environment designed to overcome these challenges in support of DOE's fossil energy goals while offering improved access to data driven products of fossil energy R&D such as datasets, tools, and web applications. In 2011, development of NETL's Energy Data eXchange (EDX) was initiated and offers i) a means for better preserving of NETL's research and development products for future access and re-use, ii) efficient, discoverable access to authoritative, relevant, external resources, and iii) an improved approach and tools to support secure, private collaboration and coordination between multi-organizational teams to meet DOE mission and goals. EDX presently supports fossil energy and SubTER Crosscut research activities, with an ever-growing user base. EDX is built on a heavily customized instance of the open source platform, Comprehensive Knowledge Archive Network (CKAN). EDX connects users to externally relevant data and tools through connecting to external data repositories built on different platforms and other CKAN platforms (e.g. Data.gov). EDX does not download and repost data or tools that already have an online presence. This leads to redundancy and even error. If a relevant resource already has an online instance, is hosted by another online entity, EDX will point users to that external host either using web services, inventorying URLs and other methods. EDX offers users the ability to leverage private-secure capabilities custom built into the system. The team is presently working on version 3 of EDX which will incorporate big data analytical capabilities amongst other advanced features. JF - American Geophysical Union Fall Meeting AU - Rose, K AU - Rowan, Chad AU - Rager, David AU - Dehlin, Mark AU - Baker, David Vic AU - McIntyre, Dustin AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract IN23B EP - 1733 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844920798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=NETL%27s+Energy+Data+Exchange+%28EDX%29%3B+a+coordination%2C+collaboration%2C+and+data+resource+discovery+platform+for+energy+science&rft.au=Rose%2C+K%3BRowan%2C+Chad%3BRager%2C+David%3BDehlin%2C+Mark%3BBaker%2C+David+Vic%3BMcIntyre%2C+Dustin%3BAnonymous&rft.aulast=Rose&rft.aufirst=K&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preferential accumulation of gas hydrate in the Andaman accretionary wedge and relationship to anomalous porosity preservation AN - 1840621634; 2016-096192 AB - In the marine environment, sediments in the gas hydrate stability zone often correspond to slope and basin settings. These settings are dominantly composed of fine-grained silt and clay lithofacies with typically low vertical permeability, and pore fluids frequently under-saturated with respect to methane. As a result, the pressure-temperature conditions requisite for a GHSZ to be present occur widely worldwide across marine settings, however, the distribution of gas hydrate in these settings is neither ubiquitous nor uniform. This study uses sediment core and borehole related data recovered by drilling at Site 17 in the Andaman Sea during the Indian National Gas Hydrate Program Expedition 1 in 2006, to investigate reservoir-scale controls on gas hydrate distribution. In particular, this study finds that conditions beyond reservoir pressure, temperature, salinity, and gas concentration, appear to influence the concentration of gas hydrate in host sediments. Using field-generated datasets along with newly acquired sedimentology, physical property, imaging and geochemical data with mineral saturation and ion activity products of key mineral phases such as amorphous silica and calcite, we document the presence and nature of secondary precipitates that contributed to anomalous porosity preservation at Site 17 in the Andaman Sea. This study demonstrates the importance of grain-scale subsurface heterogeneities in controlling the occurrence and distribution of concentrated gas hydrate accumulations in marine sediments, and document the importance that increased permeability and enhanced porosity play in supporting gas concentrations sufficient to support gas hydrate formation. This illustrates the complex balance and lithology-driven controls on hydrate accumulations of higher concentrations and offers insights into what may control the occurrence and distribution of gas hydrate in other sedimentary settings. JF - American Geophysical Union Fall Meeting AU - Rose, Kelly AU - Torres, Marta E AU - Johnson, Joel E AU - Hong, Weili AU - Giosan, Liviu AU - Solomon, Evan A AU - Kastner, Miriam AU - Cawthern, Thomas AU - Long, Phillip AU - Schaef, Todd AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract OS22B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Preferential+accumulation+of+gas+hydrate+in+the+Andaman+accretionary+wedge+and+relationship+to+anomalous+porosity+preservation&rft.au=Rose%2C+Kelly%3BTorres%2C+Marta+E%3BJohnson%2C+Joel+E%3BHong%2C+Weili%3BGiosan%2C+Liviu%3BSolomon%2C+Evan+A%3BKastner%2C+Miriam%3BCawthern%2C+Thomas%3BLong%2C+Phillip%3BSchaef%2C+Todd%3BAnonymous&rft.aulast=Rose&rft.aufirst=Kelly&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Modeling, uncertainty quantification and sensitivity analysis of subsurface fluid migration in the above zone monitoring interval of a geologic carbon storage AN - 1828850294; 2016-086458 AB - Carbon dioxide (CO (sub 2) ) storage into geological formations has significant potential for mitigating anthropogenic CO (sub 2) emissions. An increasing emphasis on the commercialization and implementation of this approach to store CO (sub 2) has led to the investigation of the physical processes involved and to the development of system-wide mathematical models for the evaluation of potential geologic storage sites and the risk associated with them. The sub-system components under investigation include the storage reservoir, caprock seals, and the above zone monitoring interval, or AZMI, to name a few. Diffusive leakage of CO (sub 2) through the caprock seal to overlying formations may occur due to its intrinsic permeability and/or the presence of natural/induced fractures. This results in a potential risk to environmental receptors such as underground sources of drinking water. In some instances, leaking CO (sub 2) also has the potential to reach the ground surface and result in atmospheric impacts. In this work, fluid (i.e., CO (sub 2) and brine) flow above the caprock, in the region designated as the AZMI, is modeled for a leakage event of a typical geologic storage system with different possible boundary scenarios. An analytical and approximate solution for radial migration of fluids in the AZMI with continuous inflow of fluids from the reservoir through the caprock has been developed. In its present form, the AZMI model predicts the spatial changes in pressure - gas saturations over time in a layer immediately above the caprock. The modeling is performed for a benchmark case and the data-driven approach of arbitrary Polynomial Chaos (aPC) Expansion is used to quantify the uncertainty of the model outputs based on the uncertainty of model input parameters such as porosity, permeability, formation thickness, and residual brine saturation. The recently developed aPC approach performs stochastic model reduction and approximates the models by a polynomial-based response surface. Finally, a global sensitivity analysis was performed with Sobol indices based on the aPC technique to determine the relative importance of these input parameters on the model output space. JF - American Geophysical Union Fall Meeting AU - Namhata, Argha AU - Dilmore, Robert M AU - Oladyshkin, Sergey AU - Zhang, Liwei AU - Nakles, David V AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51U EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828850294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling%2C+uncertainty+quantification+and+sensitivity+analysis+of+subsurface+fluid+migration+in+the+above+zone+monitoring+interval+of+a+geologic+carbon+storage&rft.au=Namhata%2C+Argha%3BDilmore%2C+Robert+M%3BOladyshkin%2C+Sergey%3BZhang%2C+Liwei%3BNakles%2C+David+V%3BAnonymous&rft.aulast=Namhata&rft.aufirst=Argha&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-10-25 N1 - CODEN - #07548 ER - TY - JOUR T1 - Risk assessment and monitoring techniques for geological CO (sub 2) sequestration AN - 1828846872; 2016-086456 AB - The National Risk Assessment Partnership (NRAP) has developed an integrated assessment model (NRAP-IAM-CS) of a carbon storage system that is able to model the full subsurface system from the reservoir to groundwater aquifers and release into the atmosphere. The approach taken uses reduced order models so that systems simulations occur rapidly, even for simulations times of hundreds to thousands of years. In that way, uncertainties of the entire system can be probed in a reasonable time period, using a Monte Carlo approach. The model presented here uses third generation NRAP ROMs that are able to realistically represent several key properties of reservoirs, wells, seals, and groundwater aquifers. Results from the NRAP-IAM-CS model are used to quantify risk profiles for selected parameter distributions of reservoir properties, seal properties, numbers of wells, well properties, thief zones, and groundwater aquifer properties. A series of risk profiles show how the risk under different storage conditions evolves over time, both during injection, in the near-term post injection period, and over the long term. In this study, the NRAP-IAM-CS was also used to investigate the importance of different parameters across the system on risk of leakage and risk of groundwater contamination, under different storage conditions. JF - American Geophysical Union Fall Meeting AU - Pawar, Rajesh AU - Dilmore, Robert M AU - Bromhal, Grant S AU - Guthrie, George D, Jr AU - Stauffer, Phil H AU - Chu, Shaoping AU - Oldenburg, Curtis M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51U EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Risk+assessment+and+monitoring+techniques+for+geological+CO+%28sub+2%29+sequestration&rft.au=Pawar%2C+Rajesh%3BDilmore%2C+Robert+M%3BBromhal%2C+Grant+S%3BGuthrie%2C+George+D%2C+Jr%3BStauffer%2C+Phil+H%3BChu%2C+Shaoping%3BOldenburg%2C+Curtis+M%3BAnonymous&rft.aulast=Pawar&rft.aufirst=Rajesh&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-10-25 N1 - CODEN - #07548 ER - TY - JOUR T1 - Direct measurement of changes to a sheared shale fracture AN - 1824215503; 2016-082715 AB - Shales are of particular interest both for their energy production potential and their ability to provide seals for sequestered CO (sub 2) . It is imperative to understand the processes that influence fracture properties in order to accurately predict subsurface behavior. In order to evaluate the coupled hydrologic and geometric changes to a fracture undergoing shear displacement, a novel apparatus was used to produce real-time shearing of fractured shale at elevated pressures. Intermittent computed tomography (CT) scans were performed during each shearing event and transmissivity measurements taken to characterize both the mechanical evolution as well as the hydrodynamic response of the fracture. The initial fractures examined had small apertures and high resistance to flow, with most aperture values below the resolution of the CT scanner and low transmissivities. Initial shearing events, with total displacement less than two mm, minimally increased the aperture and increased the transmissivity. Further shearing resulted in fracture apertures that were large with pressure differentials across the core below the detection limit of the pressure measurement equipment. Flow models using the complex fracture geometries obtained from the CT scanning was performed to examine the micro-scale impacts of fracture evolution on the flow field that were not apparent in the bulk data. These results showed strong flow channelization within the larger aperture regions and showed that hydraulic aperture was significantly different than average mechanical apertures. Fracture aperture evolution due to shearing was characterized with the resulting mechanical and hydrologic responses. Apertures showed increases after each shearing event. Additionally, this increased aperture resulted in increased transmissivity and subsequent increases in hydraulic aperture. Coupling the experimental work with computational analysis provided further insight into the evolution of fracture flow properties. JF - American Geophysical Union Fall Meeting AU - Stadleman, Matthew AU - Bromhal, Grant S AU - Moore, Jonathan AU - Gill, Magdalena AU - Crandall, Dustin AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract MR51A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Direct+measurement+of+changes+to+a+sheared+shale+fracture&rft.au=Stadleman%2C+Matthew%3BBromhal%2C+Grant+S%3BMoore%2C+Jonathan%3BGill%2C+Magdalena%3BCrandall%2C+Dustin%3BAnonymous&rft.aulast=Stadleman&rft.aufirst=Matthew&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-09-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - Recent advances in characterizing depositional facies and pore network modeling in context of carbon capture storage; an example from the Cambrian Mt. Simon Sandstone in the Illinois Basin AN - 1824215402; 2016-082521 AB - In order to understand subsurface flow dynamics, including CO (sub 2) plume migration and capillary trapping, a diverse set of geologic properties within the reservoir, from the pore scale to the basin scale, must be understood and quantified. The uncertainty about site-specific geology stems from the inherent variation in rock types, depositional environments, and diagenesis. In collaboration with geocellular and multiphase modeling, detailed characterization of the Lower Mt. Simon Sandstone (LMSS), a reservoir utilized for carbon capture storage, is supporting data-driven conceptual models to better understand reservoir heterogeneity and its relationship to reservoir properties. This includes characterization of sedimentary facies and pore scale modeling of the reservoir The Cambrian-age Lower Mt. Simon Sandstone (LMSS) is a reservoir utilized for two-different carbon capture storage projects in the Illinois Basin, USA. The LMSS is interpreted to have formed in a braided river environment comprising a hierarchy of stratification, with larger scale depositional facies comprising assemblages of smaller scale facies. The proportions, geometries, length scales, and petrophysical attributes of the depositional facies, and of the textural facies they comprise, are being quantified. Based on examination of core and analog outcrop in adjacent areas, the LMSS is comprised of five dominant depositional facies, the most abundant facies being planar to trough cross-bedded sandstones produced by subaqueous sand dunes. This facies has the best reservoir conditions with porosity up to 27% and permeability up to 470 mD. Three-dimensional pore network modeling via micro computed tomography of this facies shows well-connected and unobstructed pore throats and pore space. This presentation will outline the depositional heterogeneity of the LMSS, its relationship to diagenetic fabrics, and its influence on fluid movement within the reservoir. JF - American Geophysical Union Fall Meeting AU - Freiburg, Jared T AU - Nathan, Webb AU - Best, Jim AU - Reesink, A AU - Ritzi, Robert William, Jr AU - Pendleton, Jamie AU - Dominic, David F AU - Tudek, John AU - Kohanpur, Amir H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H43K EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 06A:Sedimentary petrology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Recent+advances+in+characterizing+depositional+facies+and+pore+network+modeling+in+context+of+carbon+capture+storage%3B+an+example+from+the+Cambrian+Mt.+Simon+Sandstone+in+the+Illinois+Basin&rft.au=Freiburg%2C+Jared+T%3BNathan%2C+Webb%3BBest%2C+Jim%3BReesink%2C+A%3BRitzi%2C+Robert+William%2C+Jr%3BPendleton%2C+Jamie%3BDominic%2C+David+F%3BTudek%2C+John%3BKohanpur%2C+Amir+H%3BAnonymous&rft.aulast=Freiburg&rft.aufirst=Jared&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-09-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - Improved modeling of naturally fractured reservoirs by quantitatively handling flow convergence into the wellbore AN - 1824214632; 2016-082586 AB - Complex fractured networks in the subsurface control the flow of fluids in many applications, and accurately modeling their interaction with wells is critical to understanding their behavior. For tight sand and shale formations, fluid flow is primarily restricted to fractures within each rock layer. NFFLOW was designed by the Department of Energy to model gas well production from naturally fractured reservoirs. NFFLOW is a discrete fracture simulator, with every fracture and rock matrix in the domain handled individually. One-dimensional models are used calculate the flow through connected fractures and flow from the surrounding rocks into fractures. Flow into well bores are determined from the combined flux from connecting fractures and adjacent rock matrices. One-dimensional fluid flow equations are used because they are extremely fast to solve and represent a reasonable approximation of the physical behavior of fluids in most of the reservoir. However, near the wellbore those models become inaccurate due to gas flow convergence, which is a multidimensional situation. We present a method to correct the one-dimensional models, using data from two-dimensional fluid flow models, while maintaining the original simulator speed. By applying corrections from the two-dimensional model, the one-dimensional models can better account for gas flow convergence into the wellbore as well as the location of the wellbore within the rock strata. Corrections were successful in scaling the one-dimensional flow rates to match the two dimensional values over a wide range of parameters for both fracture flow and porous media flow into the wellbore. This is shown to increase the accuracy of history matching to production data for a wide range of wells, allowing for better modeling and prediction of future productivity. With an accurate history match established, NFFLOW can then be used to investigate issues such as the ability of the formation to sequester carbon dioxide or the effects of additional hydraulic fracturing on fluid transport. JF - American Geophysical Union Fall Meeting AU - Stadelman, Matthew AU - Crandall, Dustin AU - Sams, W N AU - Bromhal, Grant S AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51C EP - 1374 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824214632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Improved+modeling+of+naturally+fractured+reservoirs+by+quantitatively+handling+flow+convergence+into+the+wellbore&rft.au=Stadelman%2C+Matthew%3BCrandall%2C+Dustin%3BSams%2C+W+N%3BBromhal%2C+Grant+S%3BAnonymous&rft.aulast=Stadelman&rft.aufirst=Matthew&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-09-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - Reactivity of dazomet, a hydraulic fracturing additive; hydrolysis and interaction with pyrite AN - 1819897132; 2016-078427 AB - The Marcellus Shale is currently the largest shale gas formation in play across the world. The low-permeability formation requires hydraulic fracturing to be produced. In this process, millions of gallons of water are blended with chemical additives and pumped into each well to fracture the reservoir rock. Although additives account for less than 2% of the fracking fluid mixture, they amount to hundreds of tons per frack job. The environmental properties of some of these additives have been studied, but their behavior under downhole conditions is not widely reported in the peer-reviewed literature. These compounds and their reaction products may return to the surface as produced or waste water. In the event of a spill or release, this water has the potential to contaminate surface soil and water. Of these additives, biocides may present a formidable challenge to water quality. Biocides are toxic compounds (by design), typically added to the Marcellus Shale to control bacteria in the well. An assessment of the most frequently used biocides indicated a need to study the chemical dazomet under reservoir conditions. The Marcellus Shale contains significant deposits of pyrite. This is a ubiquitous mineral within black shales that is known to react with organic compounds in both oxic and anoxic settings. Thus, the objective of our study was to determine the effect of pyrite on the hydrolysis of dazomet. Liquid chromatography-triple quadrupole mass spectrometry (LC-QQQ) was used to calculate the loss rate of aqueous dazomet. Gas chromatography-mass spectrometry (GC-MS) was used to identify the reaction products. Our experiments show that in water, dazomet rapidly hydrolyses in water to form organic and inorganic transformation products. This reaction rate was unaffected when performed under anoxic conditions. However, with pyrite we found an appreciable increase in the removal rate of dazomet. This was accompanied by a corresponding change in the distribution of observed reaction products. Our results indicate the need to determine specific mineral-additive interactions to evaluate the potential risks of chemical use in hydraulic fracturing. JF - American Geophysical Union Fall Meeting AU - Consolazio, Nizette AU - Lowry, Gregory V AU - Karamalidis, Athanasios AU - Hakala, Alexandra AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H31E EP - 1449 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819897132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Reactivity+of+dazomet%2C+a+hydraulic+fracturing+additive%3B+hydrolysis+and+interaction+with+pyrite&rft.au=Consolazio%2C+Nizette%3BLowry%2C+Gregory+V%3BKaramalidis%2C+Athanasios%3BHakala%2C+Alexandra%3BAnonymous&rft.aulast=Consolazio&rft.aufirst=Nizette&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-09-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Variation in lithium isotopes during fluid-shale interactions at elevated pressure and temperature AN - 1815672362; 2016-075353 AB - Naturally-occurring isotopes are useful tracers of fluid mixing in complex natural systems, and have been applied towards evaluating the sources of elevated total dissolved solids in water produced from unconventional oil and gas operations. Prior investigations showed that elevated Li in saline waters co-produced with natural gas during Marcellus Shale development resulted from mixing of hydraulic fracturing fluid (HFF) and Li-rich formation water. However, specific contributions to the Li isotope signature from reactions between the HFF and shale remained unclear. This study focused on HFF-shale reactions that could affect the Li budget and isotope composition in Marcellus Shale produced water in a series of flow through experiments conducted at fixed temperature and pressure (66 degrees C, 20MPa) comparable to formation conditions. Synthetic HFF was prepared by mixing either freshwater or a lab-derived saline water with chemical additives commonly used in hydraulic fracturing. Outcrop cores of Marcellus Shale were artificially fractured either parallel to or perpendicular to bedding prior to loading into the flow-through apparatus, and each experiment was performed with a unique HFF composition continuously pumped through a fresh core (15 cm in length, 3.8 cm in diameter). Initial fluid and cumulative effluents collected after 2 days and 7 days from the start of the experiment were measured for concentrations of cations and anions. Multi-collector ICP-MS was used to measure lithium isotope ratios (delta (super 7) Li). Preliminary results show that dissolution of carbonate minerals occurred in both replicate experiments with freshwater-based HFF (pH 2) as shown by a large decrease in Li/Ca from 0.8 (initial fluid) to 0.003 (effluents on day 2 and day 7) with no significant change in Li concentration. This is consistent with low Li in carbonate cement (45 days after production) in produced water samples from the field. Results to date suggest that HFF-shale reactions have a minimal effect on the Li isotopic signature of Marcellus Shale produced waters. JF - American Geophysical Union Fall Meeting AU - Phan, T T AU - Paukert, A N AU - Hakala, A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract EP13B EP - 0956 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Variation+in+lithium+isotopes+during+fluid-shale+interactions+at+elevated+pressure+and+temperature&rft.au=Phan%2C+T+T%3BPaukert%2C+A+N%3BHakala%2C+A%3BAnonymous&rft.aulast=Phan&rft.aufirst=T&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Hydraulic fracturing fluid reaction with shale in experiments at unconventional gas reservoir conditions AN - 1812220462; 2016-072462 AB - Despite the marked increase in hydraulic fracturing for unconventional natural gas production over the past decade, reactions between hydraulic fracturing fluids (HFF) and shale reservoirs remain poorly reported in the scientific literature. Shale-HFF interaction could cause mineral dissolution, releasing matter from the shale, or mineral precipitation that degrades reservoir permeability. Furthermore, data are limited on whether scale inhibitors are effective at preventing mineral precipitation and whether these inhibitors adversely affect reservoir fluid chemistry and permeability. To investigate HFF-rock interaction within shale reservoirs, we conducted flow-through experiments exposing Marcellus Shale to synthetic HFF at reservoir conditions (66oC, 20MPa). Outcrop shale samples were cored, artificially fractured, and propped open with quartz sand. Synthetic HFFs were mixed with chemical additives similar to those used for Marcellus Shale gas wells in Ohio and Southwestern Pennsylvania (FracFocus.org). We evaluated differences between shale reactions with HFF made from natural freshwater and reactions with HFF made from synthetic produced water (designed to simulate produced water that is diluted and re-used for subsequent hydraulic fracturing). We also compared reactions with HFFs including hydrochloric acid (HCl) to represent the initial acid stage, and HFFs excluding HCl. Reactions were determined through changes in fluid chemistry and X-ray CT and SEM imaging of the shale before and after experiments. Results from experiments with HFF containing HCl showed dissolution of primary calcite, as expected. Experiments using HFF made from synthetic produced water had significant mineral precipitation, particularly of barium and calcium sulfates. X-ray CT images from these experiments indicate precipitation of minerals occurred either along the main fracture or within smaller splay fractures, depending on fluid composition. These experiments suggest that HFF reaction with shale may significantly alter reservoir mineralogy and could damage reservoir permeability with secondary mineral precipitation. This topic deserves further study as gas production rates and ultimate recovery may be suboptimal, with consequential increases in the footprint of natural gas extraction. JF - American Geophysical Union Fall Meeting AU - Paukert, A N AU - Hakala, A AU - Jarvis, K B AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract MR41A EP - 2620 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812220462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hydraulic+fracturing+fluid+reaction+with+shale+in+experiments+at+unconventional+gas+reservoir+conditions&rft.au=Paukert%2C+A+N%3BHakala%2C+A%3BJarvis%2C+K+B%3BAnonymous&rft.aulast=Paukert&rft.aufirst=A&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Impacts of hydrate distribution on the hydro-thermo-mechanical properties of hydrate-bearing sediments AN - 1797538390; 2016-053238 AB - In general, hydrate makes the sediments hydraulically less conductive, thermally more conductive, and mechanically stronger; yet the dependency of these physical properties on hydrate saturation varies with hydrate distribution and morphology. Hydrate distribution in sediments may cause the bulk physical properties of their host sediments varying several orders of magnitude even with the same amount of hydrate. In natural sediments, hydrate morphology is inherently governed by the burial depth and the grain size of the host sediments. Compare with patchy hydrate, uniformly distributed hydrate is more destructive to fluid flow, yet leads to higher gas and water permeability during hydrate dissociation due to the easiness of forming percolation paths. Water and hydrate have similar thermal conductivity values; the bulk thermal conductivity of hydrate-bearing sediments depends critically on gas-phase saturation. 60% of gas saturation may result in evident thermal conductivity drop and hinder further gas production. Sediments with patchy hydrate yield lower stiffness than that with cementing hydrate but higher stiffness than that with pore filling and loading bearing hydrate. Besides hydrate distribution, the stress state and loading history also play an important role in the mechanical behavior of hydrate-bearing sediments. JF - American Geophysical Union Fall Meeting AU - Dai, S AU - Seol, Y AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B12B EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797538390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impacts+of+hydrate+distribution+on+the+hydro-thermo-mechanical+properties+of+hydrate-bearing+sediments&rft.au=Dai%2C+S%3BSeol%2C+Y%3BAnonymous&rft.aulast=Dai&rft.aufirst=S&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Modeling dissociation of hydrate bearing sediments under shear AN - 1797538152; 2016-053261 AB - To assess the stability of ground during gas production from hydrate bearing sediments, it is of fundamental importance that the constitutive model employed and the computational procedure adopted are capable and accurate. One way to establish credence is to investigate if observation from laboratory tests could be reproduced in analysis. From this consideration, this study modeled laboratory triaxial tests in which hydrate dissociation was induced when a certain level of shear stress was reached. During the dissociation, however, both the axial and the confining stresses were kept unchanged. There were basically two scenarios observed: If the applied shear stress was higher than the shear strength of the hydrate free host soil, failure would take place during the dissociation; otherwise the sample would remain stable. The dissociation was induced either by a temperature raise or through pore pressure reduction. To model such tests, a coupled procedure was employed: the geomechanical analysis was conducted in FLAC3D, and the multiphase flow was conducted in TOUGH+. In this study, an SMP critical state constitutive model was implemented in the FLAC3D. This study successfully reproduced the observation from the laboratory tests. It showed that if the dissociation was caused by temperature change alone, failure would take place during dissociation. On the other hand, the modeling results also showed that if the dissociation was induced by pressure reduction, a sample could remain stable during dissociation because the effective confining stress was raised, but it would fail afterwards when the pre-association fluid pressure was allowed to return and the pace of hydrate reformation lagged behind. JF - American Geophysical Union Fall Meeting AU - Lin, J S AU - Choi, J H AU - Seol, Y AU - Rutqvist, J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B13B EP - 0606 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797538152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+dissociation+of+hydrate+bearing+sediments+under+shear&rft.au=Lin%2C+J+S%3BChoi%2C+J+H%3BSeol%2C+Y%3BRutqvist%2C+J%3BAnonymous&rft.aulast=Lin&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Numerical simulations of CO (sub 2) -assisted gas production from hydrate reservoirs AN - 1797529348; 2016-053276 AB - A series of experimental studies over the last decade have reviewed the feasibility of using CO (sub 2) or CO (sub 2) +N (sub 2) gas mixtures to recover CH (sub 4) gas from hydrates deposits. That technique would serve the dual purpose of CO (sub 2) sequestration and production of CH (sub 4) while maintaining the geo-mechanical stability of the reservoir. In order to analyze CH (sub 4) production process by means of CO (sub 2) or CO (sub 2) +N (sub 2) injection into gas hydrate reservoirs, a new simulation tool, Mix3HydrateResSim (Mix3HRS)[1], was previously developed to account for the complex thermodynamics of multi-component hydrate phase and to predict the process of CH (sub 4) substitution by CO (sub 2) (and N (sub 2) ) in the hydrate lattice. In this work, Mix3HRS is used to simulate the CO (sub 2) injection into a Class 2 hydrate accumulation characterized by a mobile aqueous phase underneath a hydrate bearing sediment. That type of hydrate reservoir is broadly confirmed in permafrost and along seashore. The production technique implies a two-stage approach using a two-well design, one for an injector and one for a producer. First, the CO (sub 2) is injected into the mobile aqueous phase to convert it into immobile CO (sub 2) hydrate and to initiate CH (sub 4) release from gas hydrate across the hydrate-water boundary (generally designating the onset of a hydrate stability zone). Second, CH (sub 4) hydrate decomposition is induced by the depressurization method at a producer to estimate gas production potential over 30 years. The conversion of the free water phase into the CO (sub 2) hydrate significantly reduces competitive water production in the second stage, thereby improving the methane gas production. A base case using only the depressurization stage is conducted to compare with enhanced gas production predicted by the CO (sub 2) -assisted technique. The approach also offers a possibility to permanently store carbon dioxide in the underground formation to greater extent comparing to a direct injection of CO (sub 2) into gas hydrate sediment. Numerical models are based on the hydrate formations at the Prudhoe Bay L-Pad region on the Alaska North Slope. References [1] N. Garapati, "Reservoir Simulation for Production of CH (sub 4) from Gas Hydrate Reservoirs Using CO (sub 2) /CO (sub 2) +N (sub 2) by HydrateResSim", Ph.D. thesis, West Virginia University, 2013. JF - American Geophysical Union Fall Meeting AU - Sridhara, P AU - Anderson, B J AU - Myshakin, Evgeniy M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B13B EP - 0621 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797529348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Numerical+simulations+of+CO+%28sub+2%29+-assisted+gas+production+from+hydrate+reservoirs&rft.au=Sridhara%2C+P%3BAnderson%2C+B+J%3BMyshakin%2C+Evgeniy+M%3BAnonymous&rft.aulast=Sridhara&rft.aufirst=P&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - High temperature fiber-optic evanescent wave hydrogen sensors using La-doped SrTiO3 for SOFC applications AN - 1786158283; PQ0002339280 AB - Advanced sensors are needed for development of next-generation fossil fuel power generation technologies and for enhancing efficiencies of existing power generation systems. Optical waveguide-based sensing technologies have become increasingly important for harsh environment energy applications. In this manuscript, we present sensing results for fiber-optic evanescent wave hydrogen sensors employing La-doped SrTiO3 layers as the active sensing element. These sensors show a rapid, reproducible sensing response to hydrogen fuel gas streams at elevated temperatures (600-800 degree C). The presence of hydrogen results in a reversible and reproducible decrease in near-infrared transmission through the sensor. Sensors were also tested directly in the anode assembly of an operating solid oxide fuel cell (SOFC) with the sensor response correlating with both H2 concentration and SOFC cell potential. JF - Sensors and Actuators B: Chemical AU - Schultz, Andrew M AU - Brown, Thomas D AU - Buric, Michael P AU - Lee, Shiwoo AU - Gerdes, Kirk AU - Ohodnicki, Paul R AD - National Energy Technology Laboratory, 626 Cochrans Mill Rd, Pittsburgh, PA 15236, USA Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 1307 EP - 1313 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 221 SN - 0925-4005, 0925-4005 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA) KW - Optical fiber sensor KW - Metal oxide KW - Hydrogen sensor KW - SrTiO3 KW - High temperature KW - Optical fibers KW - Strontium titanates KW - Evanescent waves KW - Sensors KW - Detection KW - Solid oxide fuel cells KW - Hydrogen KW - Power generation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1786158283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Sensors+and+Actuators+B%3A+Chemical&rft.atitle=High+temperature+fiber-optic+evanescent+wave+hydrogen+sensors+using+La-doped+SrTiO3+for+SOFC+applications&rft.au=Schultz%2C+Andrew+M%3BBrown%2C+Thomas+D%3BBuric%2C+Michael+P%3BLee%2C+Shiwoo%3BGerdes%2C+Kirk%3BOhodnicki%2C+Paul+R&rft.aulast=Schultz&rft.aufirst=Andrew&rft.date=2015-12-01&rft.volume=221&rft.issue=&rft.spage=1307&rft.isbn=&rft.btitle=&rft.title=Sensors+and+Actuators+B%3A+Chemical&rft.issn=09254005&rft_id=info:doi/10.1016%2Fj.snb.2015.07.046 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-05-03 DO - http://dx.doi.org/10.1016/j.snb.2015.07.046 ER - TY - JOUR T1 - Finite element modeling of rock cutting and its fragmentation process AN - 1769967524; 2016-018745 AB - Rock cutting is a challenging problem from a modeling perspective. The challenges come from the complexity of the physics from the tool-rock interaction to the fracture process and propagation of the quasibrittle rocks. This study was aimed at developing a finite element procedure that was capable of providing reasonable estimates of cutting forces and, at the same time, capturing the essential characteristics of the fragmentation process. Published laboratory rock scratch tests were used as modeling targets since these tests encompass all essential characteristics of rock cutting. Both shallow cuts and deep cuts from a rectangular cutter were analyzed first, followed by modeling of shallow cuts from a disc cutter. It was concluded that rock cutting could be reasonably modeled by using a plasticity-damage model, an element erosion scheme that removes an element when its energy release equals fracture energy, together with a proper selection of modeling parameters. Abstract Copyright (2015) Elsevier, B.V. JF - International Journal of Rock Mechanics and Mining Sciences (1997) AU - Jaime, Maria C AU - Zhou, Yaneng AU - Lin, Jeen-Shang AU - Gamwo, Isaac K Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 137 EP - 146 PB - Elsevier, Oxford-New York VL - 80 SN - 1365-1609, 1365-1609 KW - laboratory studies KW - finite element analysis KW - experimental studies KW - fragmentation KW - ductility KW - mechanical properties KW - brittleness KW - cuttings KW - plasticity KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.atitle=Finite+element+modeling+of+rock+cutting+and+its+fragmentation+process&rft.au=Jaime%2C+Maria+C%3BZhou%2C+Yaneng%3BLin%2C+Jeen-Shang%3BGamwo%2C+Isaac+K&rft.aulast=Jaime&rft.aufirst=Maria&rft.date=2015-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/13651609 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2016-03-03 N1 - CODEN - IJRMA2 N1 - SubjectsTermNotLitGenreText - brittleness; cuttings; ductility; experimental studies; finite element analysis; fragmentation; laboratory studies; mechanical properties; plasticity; rock mechanics DO - http://dx.doi.org/10.1016/j.ijrmms.2015.09.004 ER - TY - JOUR T1 - Adventures in ground water monitoring; why has it been so difficult to obtain ground water data near shale gas wells? AN - 1756508239; 2016-005528 AB - Shale gas development in the United States has revolutionized energy production and supply, making the nation energy independent for the first time in decades. However, many people remain concerned that the large-scale hydraulic fracturing necessary to recover hydrocarbons from shale may degrade the environment, including groundwater. Improving the understanding of how groundwater may be impacted by shale gas development requires field monitoring at multiple sites on different shale plays under a variety of climates and hydrologic conditions. Such monitoring has been difficult to achieve because of a lack of access to commercial sites and an absence of funding to drill dedicated research wells. JF - Environmental Geosciences AU - Soeder, Daniel J Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 139 EP - 148 PB - American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Tulsa, OK VL - 22 IS - 4 SN - 1075-9565, 1075-9565 KW - United States KW - hydraulic fracturing KW - monitoring KW - shale gas KW - Huston Township Pennsylvania KW - waste water KW - pollutants KW - natural gas KW - pollution KW - petroleum KW - Moshannon State Forest KW - ground water KW - environmental management KW - oil wells KW - Pennsylvania KW - water pollution KW - Clearfield County Pennsylvania KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756508239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geosciences&rft.atitle=Adventures+in+ground+water+monitoring%3B+why+has+it+been+so+difficult+to+obtain+ground+water+data+near+shale+gas+wells%3F&rft.au=Soeder%2C+Daniel+J&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2015-12-01&rft.volume=22&rft.issue=4&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Environmental+Geosciences&rft.issn=10759565&rft_id=info:doi/10.1306%2Feg.09221515011 L2 - http://www.ingentaconnect.com/content/bsc/ege LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 39 N1 - PubXState - OK N1 - Document feature - 1 table, sketch map N1 - Last updated - 2016-01-14 N1 - SubjectsTermNotLitGenreText - Clearfield County Pennsylvania; environmental management; ground water; Huston Township Pennsylvania; hydraulic fracturing; monitoring; Moshannon State Forest; natural gas; oil wells; Pennsylvania; petroleum; pollutants; pollution; shale gas; United States; waste water; water pollution DO - http://dx.doi.org/10.1306/eg.09221515011 ER - TY - JOUR T1 - Experimental investigation on the influence of high pressure and high temperature on the mechanical properties of deep reservoir rocks AN - 1832674887; 778597-27 AB - Deep and ultra-deep resources extraction has resulted in the challenge of drilling into high-pressure, high-temperature (HPHT) environments. Drilling challenges at such extreme conditions prompted NETL to develop a specialized ultra-deep drilling simulator (UDS) for investigating drill behavior in such conditions. Using the UDS apparatus, complex laboratory tests were performed on Carthage marble (Warsaw limestone) and Crab Orchard sandstone, which represent the rocks in the basins of the Tuscaloosa trend in southern Louisiana and the Arbuckle play in Oklahoma and North Texas. Additionally, numerical models of the UDS were developed for performing parametric analyses that would be impossible with the UDS alone. Subsequently, it was found that the input properties for these two rock types at such extreme pressure and temperature conditions were unavailable. Therefore, a suite of unconfined compressive strength, indirect tensile strength, and triaxial compression tests (sigma (sub 1) > sigma (sub 2) = sigma (sub 3) ) were performed on Carthage marble and Crab Orchard sandstone for investigating their behavior in HPHT environments. The HPHT experiments were performed at confining pressures ranging from atmospheric to 200 MPa, and with temperatures ranging from 25 to 180 degrees C. The influences of confining pressure and temperature on the mechanical properties of two rocks were investigated. Copyright 2015 Springer-Verlag Wien JF - Rock Mechanics and Rock Engineering AU - Zhang, Peng AU - Mishra, Brijes AU - Heasley, Keith A Y1 - 2015/11// PY - 2015 DA - November 2015 SP - 2197 EP - 2211 PB - Springer-Verlag, Vienna - New York VL - 48 IS - 6 SN - 0723-2632, 0723-2632 KW - experimental studies KW - pressure KW - sandstone KW - mechanical properties KW - brittle deformation KW - deformation KW - high pressure KW - triaxial tests KW - temperature KW - rock mechanics KW - reservoir rocks KW - laboratory studies KW - sedimentary rocks KW - deep drilling KW - metamorphic rocks KW - marbles KW - drilling KW - clastic rocks KW - high temperature KW - ductile deformation KW - 26B:Economic geology, general, economics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832674887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Rock+Mechanics+and+Rock+Engineering&rft.atitle=Experimental+investigation+on+the+influence+of+high+pressure+and+high+temperature+on+the+mechanical+properties+of+deep+reservoir+rocks&rft.au=Zhang%2C+Peng%3BMishra%2C+Brijes%3BHeasley%2C+Keith+A&rft.aulast=Zhang&rft.aufirst=Peng&rft.date=2015-11-01&rft.volume=48&rft.issue=6&rft.spage=2197&rft.isbn=&rft.btitle=&rft.title=Rock+Mechanics+and+Rock+Engineering&rft.issn=07232632&rft_id=info:doi/10.1007%2Fs00603-015-0718-x L2 - http://www.springerlink.com/content/101578/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Number of references - 50 N1 - Last updated - 2017-01-24 N1 - CODEN - RMREDX N1 - SubjectsTermNotLitGenreText - brittle deformation; clastic rocks; deep drilling; deformation; drilling; ductile deformation; experimental studies; high pressure; high temperature; laboratory studies; marbles; mechanical properties; metamorphic rocks; pressure; reservoir rocks; rock mechanics; sandstone; sedimentary rocks; temperature; triaxial tests DO - http://dx.doi.org/10.1007/s00603-015-0718-x ER - TY - JOUR T1 - Ab initio thermodynamic approach to identify mixed solid sorbents for CO sub(2) capture technology AN - 1768584220; PQ0002680925 AB - Because the current technologies for capturing CO sub(2) are still too energy intensive, new materials must be developed that can capture CO sub(2) reversibly with acceptable energy costs. At a given CO sub(2) pressure, the turnover temperature (T sub(t)) of the reaction of an individual solid that can capture CO sub(2) is fixed. Such T sub(t) may be outside the operating temperature range ( Delta T sub(o)) for a practical capture technology. To adjust T sub(t) to fit the practical Delta T sub(o), in this study, three scenarios of mixing schemes are explored by combining thermodynamic database mining with first principles density functional theory (DFT) and phonon lattice dynamics calculations. Our calculated results demonstrate that by mixing different types of solids, it's possible to shift T sub(t) to the range of practical operating temperature conditions. According to the requirements imposed by the pre- and post- combustion technologies and based on our calculated thermodynamic properties for the CO sub(2) capture reactions by the mixed solids of interest, we were able to identify the mixing ratios of two or more solids to form new sorbent materials for which lower capture energy costs are expected at the desired pressure and temperature conditions. JF - Frontiers in Environmental Science AU - Duan, Yuhua AD - National Energy Technology Laboratory, United States Department of Energy, Pittsburgh, PA, USA, yuhua.duan@netl.doe.gov Y1 - 2015/10/31/ PY - 2015 DA - 2015 Oct 31 SP - 1 EP - 9 PB - Frontiers Research Foundation, P O Box 110 1015 Lausanne Switzerland VL - 3 KW - Environment Abstracts KW - CO2 capture KW - mixed solid sorbent KW - ab initio thermodynamics KW - turnover temperature shift KW - mixing ratio KW - Sorbents KW - Thermodynamics KW - Energy KW - Temperature KW - Carbon dioxide KW - Technology KW - Combustion KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1768584220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Frontiers+in+Environmental+Science&rft.atitle=Ab+initio+thermodynamic+approach+to+identify+mixed+solid+sorbents+for+CO+sub%282%29+capture+technology&rft.au=Duan%2C+Yuhua&rft.aulast=Duan&rft.aufirst=Yuhua&rft.date=2015-10-31&rft.volume=3&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Frontiers+in+Environmental+Science&rft.issn=2296-665X&rft_id=info:doi/10.3389%2Ffenvs.2015.00069 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Sorbents; Thermodynamics; Energy; Temperature; Carbon dioxide; Combustion; Technology DO - http://dx.doi.org/10.3389/fenvs.2015.00069 ER - TY - JOUR T1 - Fate of Radium in Marcellus Shale Flowback Water Impoundments and Assessment of Associated Health Risks. AN - 1701894513; 26154523 AB - Natural gas extraction from Marcellus Shale generates large quantities of flowback water that contain high levels of salinity, heavy metals, and naturally occurring radioactive material (NORM). This water is typically stored in centralized storage impoundments or tanks prior to reuse, treatment or disposal. The fate of Ra-226, which is the dominant NORM component in flowback water, in three centralized storage impoundments in southwestern Pennsylvania was investigated during a 2.5-year period. Field sampling revealed that Ra-226 concentration in these storage facilities depends on the management strategy but is generally increasing during the reuse of flowback water for hydraulic fracturing. In addition, Ra-226 is enriched in the bottom solids (e.g., impoundment sludge), where it increased from less than 10 pCi/g for fresh sludge to several hundred pCi/g for aged sludge. A combination of sequential extraction procedure (SEP) and chemical composition analysis of impoundment sludge revealed that Barite is the main carrier of Ra-226 in the sludge. Toxicity characteristic leaching procedure (TCLP) (EPA Method 1311) was used to assess the leaching behavior of Ra-226 in the impoundment sludge and its implications for waste management strategies for this low-level radioactive solid waste. Radiation exposure for on-site workers calculated using the RESRAD model showed that the radiation dose equivalent for the baseline conditions was well below the NRC limit for the general public. JF - Environmental science & technology AU - Zhang, Tieyuan AU - Hammack, Richard W AU - Vidic, Radisav D AD - ‡National Energy Technology Laboratory, Pittsburgh, Pennsylvania 15236, United States. Y1 - 2015/08/04/ PY - 2015 DA - 2015 Aug 04 SP - 9347 EP - 9354 VL - 49 IS - 15 KW - Sewage KW - 0 KW - Waste Water KW - Water Pollutants, Radioactive KW - Radium KW - W90AYD6R3Q KW - Index Medicus KW - Risk Factors KW - Humans KW - Water Quality KW - Sewage -- chemistry KW - Dose-Response Relationship, Radiation KW - Pennsylvania KW - Carcinogenesis -- pathology KW - Geologic Sediments -- chemistry KW - Waste Water -- chemistry KW - Water Pollutants, Radioactive -- analysis KW - Radium -- analysis KW - Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1701894513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Fate+of+Radium+in+Marcellus+Shale+Flowback+Water+Impoundments+and+Assessment+of+Associated+Health+Risks.&rft.au=Zhang%2C+Tieyuan%3BHammack%2C+Richard+W%3BVidic%2C+Radisav+D&rft.aulast=Zhang&rft.aufirst=Tieyuan&rft.date=2015-08-04&rft.volume=49&rft.issue=15&rft.spage=9347&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/10.1021%2Facs.est.5b01393 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-02-29 N1 - Date created - 2015-08-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.est.5b01393 ER - TY - JOUR T1 - Thermal conductivity measurements in unsaturated hydrate-bearing sediments AN - 1808382447; PQ0001959581 AB - Current database on the thermal properties of hydrate-bearing sediments remains limited and has not been able to capture their consequential changes during gas production where vigorous phase changes occur in this unsaturated system. This study uses the transient plane source (TPS) technique to measure the thermal conductivity of methane hydrate-bearing sediments with various hydrate/water/gas saturations. We propose a simplified method to obtain thermal properties from single-sided TPS signatures. Results reveal that both volume fraction and distribution of the pore constituents govern the thermal conductivity of unsaturated specimens. Thermal conductivity hysteresis is observed due to water redistribution and fabric change caused by hydrate formation and dissociation. Measured thermal conductivity increases evidently when hydrate saturation S sub(h)>30-40%, shifting upward from the geometric mean model prediction to a Pythagorean mixing model. These observations envisage a significant drop in sediment thermal conductivity when residual hydrate/water saturation falls below ~40%, hindering further gas production. Key Points * Use single-sided transient plane source to measure thermal conductivity * Obtained thermal conductivity in unsaturated hydrate-bearing sediments * Hindered gas production when residual water/hydrate saturation falls below ~40% JF - Geophysical Research Letters AU - Dai, Sheng AU - Cha, Jong-Ho AU - Rosenbaum, Eilis J AU - Zhang, Wu AU - Seol, Yongkoo AD - National Energy Technology Laboratory, U.S. Department of Energy, Morgantown, West Virginia, USA. Y1 - 2015/08// PY - 2015 DA - August 2015 SP - 6295 EP - 6305 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 42 IS - 15 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Methane KW - Thermal conductivity KW - Fluid Drops KW - Saturation KW - Sediments KW - Methodology KW - Databases KW - Pores KW - Gas production KW - Thermal Properties KW - Dissociation KW - Hydrates KW - Phase changes KW - Thermal Conductivity KW - Modelling KW - SW 0810:General KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808382447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Thermal+conductivity+measurements+in+unsaturated+hydrate-bearing+sediments&rft.au=Dai%2C+Sheng%3BCha%2C+Jong-Ho%3BRosenbaum%2C+Eilis+J%3BZhang%2C+Wu%3BSeol%2C+Yongkoo&rft.aulast=Dai&rft.aufirst=Sheng&rft.date=2015-08-01&rft.volume=42&rft.issue=15&rft.spage=6295&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2015GL064492 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Methane; Thermal conductivity; Gas production; Dissociation; Hydrates; Phase changes; Sediments; Methodology; Modelling; Databases; Pores; Thermal Properties; Fluid Drops; Saturation; Thermal Conductivity DO - http://dx.doi.org/10.1002/2015GL064492 ER - TY - JOUR T1 - Lithofacies of the Devonian Marcellus Shale In the Eastern Appalachian Basin, U.S.A. AN - 1762378599; PQ0002505260 AB - The Marcellus Shale is an important hydrocarbon source rock and an unconventional reservoir whose origin has engendered much recent debate among geologists. Our analysis of the formation in West Virginia and adjacent States aims to identify and describe the several lithofacies in the eastern Appalachian basin and to interpret their depositional setting. The study is based on field, hand-sample, and microscopic observations, supplemented by X-ray diffraction, thermogravimetric, and gamma-ray-scintillometer data. We identify five major lithofacies: (1) calcitic coarse mudstone, quartz-silty and sparsely fossiliferous; (2) skeletal wackestone-packstone limestone, exhibiting a low to moderate faunal diversity; (3) calcitic carbonaceous medium mudstone, containing a high organic-carbon content and low-density, low-diversity fossil community; (4) siliceous carbonaceous fine mudstone, exceedingly radioactive with a high organic-carbon content and usually barren of benthic fossils; and (5) argillaceous coarse mudstone, quartz-silty, micaceous, and kaolinitic. Most layers of Facies 4 mudstone-the quintessential black shale of the Marcellus- formed in a stagnant, anoxic environment beneath a stratified water column and starved of terrigenous sediment. JF - Journal of Sedimentary Research AU - Bruner, Kathy R AU - Walker-Milani, Margaret AU - Smosna, Richard AD - National Energy Technology Laboratory, Morgantown, West Virginia 26507, U.S.A., rsmosna@wvu.edu Y1 - 2015/08// PY - 2015 DA - August 2015 SP - 937 EP - 954 PB - Society for Sedimentary Geology, 6128 East 38th Street Tulsa OK 74135-5814 United States VL - 85 IS - 8 SN - 1527-1404, 1527-1404 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Mudstone KW - Reservoir KW - X-ray Diffraction KW - Limestone KW - Hydrocarbons KW - Basins KW - USA, Appalachian Basin KW - USA, West Virginia KW - Sediments KW - Shales KW - Devonian KW - Sedimentary facies KW - Sedimentary rocks KW - Geologists KW - Lithofacies KW - Diffraction KW - Shale KW - Reservoirs KW - SW 5010:Network design KW - Q2 09283:Soil mechanics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1762378599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Sedimentary+Research&rft.atitle=Lithofacies+of+the+Devonian+Marcellus+Shale+In+the+Eastern+Appalachian+Basin%2C+U.S.A.&rft.au=Bruner%2C+Kathy+R%3BWalker-Milani%2C+Margaret%3BSmosna%2C+Richard&rft.aulast=Bruner&rft.aufirst=Kathy&rft.date=2015-08-01&rft.volume=85&rft.issue=8&rft.spage=937&rft.isbn=&rft.btitle=&rft.title=Journal+of+Sedimentary+Research&rft.issn=15271404&rft_id=info:doi/10.2110%2Fjsr.2015.62 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Mudstone; Reservoir; Devonian; Sedimentary facies; Geologists; Sedimentary rocks; Diffraction; Lithofacies; Shale; X-ray Diffraction; Limestone; Shales; Hydrocarbons; Basins; Reservoirs; Sediments; USA, Appalachian Basin; USA, West Virginia DO - http://dx.doi.org/10.2110/jsr.2015.62 ER - TY - JOUR T1 - Approach for assessing coastal vulnerability to oil spills for prevention and readiness using GIS and the Blowout and Spill Occurrence Model AN - 1735918794; PQ0002262423 AB - Increasing interest in offshore hydrocarbon exploration has pushed the operational fronts associated with exploration efforts further offshore into deeper waters and more uncertain subsurface settings. This has become particularly common in the U.S. Gulf of Mexico. In this study we develop a spatial vulnerability approach and example assessment to support future spill prevention and improve future response readiness. This effort, which is part of a larger integrated assessment modeling spill prevention effort, incorporated economic and environmental data, and utilized a novel new oil spill simulation model from the U.S. Department of Energy's National Energy Technology Laboratory, the Blowout and Spill Occurrence Model (BLOSOM). Specifically, this study demonstrated a novel approach to evaluate potential impacts of hypothetical spill simulations at varying depths and locations in the northern Gulf of Mexico. The simulations are analyzed to assess spatial and temporal trends associated with the oil spill. The approach itself demonstrates how these data, tools and techniques can be used to evaluate potential spatial vulnerability of Gulf communities for various spill scenarios. Results of the hypothetical scenarios evaluated in this study suggest that under conditions like those simulated, a strong westward push by ocean currents and tides may increase the impacts of deep water spills along the Texas coastline, amplifying the vulnerability of communities on the local barrier islands. Ultimately, this approach can be used further to assess a range of conditions and scenarios to better understand potential risks and improve informed decision making for operators, responders, and a of stakeholders to support spill prevention as well as response readiness. JF - Ocean & Coastal Management AU - Nelson, J R AU - Grubesic, TH AU - Sim, L AU - Rose, K AU - Graham, J AD - Oak Ridge Institute for Science and Education, U.S. Department of Energy, National Energy Technology Laboratory, 1450 Queen Avenue SW, Albany, OR 97321, USA Y1 - 2015/08// PY - 2015 DA - August 2015 SP - 1 EP - 11 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 112 SN - 0964-5691, 0964-5691 KW - Risk Abstracts; Environment Abstracts; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Oil spill KW - Simulation KW - Spatial analysis KW - Response KW - Coastal vulnerability KW - GIS KW - Risk assessment KW - Stakeholders KW - Oil slicks KW - Deep water KW - ASW, USA, Texas KW - Oil and gas exploration KW - Economics KW - Geographic Information Systems (GIS) KW - Seawater pollution KW - Vulnerability KW - Blowouts KW - Oil spills KW - Hydrocarbons KW - Coastal zone management KW - ASW, Mexico Gulf KW - Ocean currents KW - Decision making KW - Prevention KW - Numerical simulations KW - Fronts KW - Oceans KW - Energy KW - Coastal oceanography KW - Barrier islands KW - Geographic information systems KW - ENA 03:Energy KW - O 5080:Legal/Governmental KW - M3 1010:Issues in Sustainable Development KW - Q5 08502:Methods and instruments KW - R2 23070:Economics, organization KW - M2 551.466:Ocean Waves and Tides (551.466) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1735918794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ocean+%26+Coastal+Management&rft.atitle=Approach+for+assessing+coastal+vulnerability+to+oil+spills+for+prevention+and+readiness+using+GIS+and+the+Blowout+and+Spill+Occurrence+Model&rft.au=Nelson%2C+J+R%3BGrubesic%2C+TH%3BSim%2C+L%3BRose%2C+K%3BGraham%2C+J&rft.aulast=Nelson&rft.aufirst=J&rft.date=2015-08-01&rft.volume=112&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Ocean+%26+Coastal+Management&rft.issn=09645691&rft_id=info:doi/10.1016%2Fj.ocecoaman.2015.04.014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-11-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Oil and gas exploration; Hydrocarbons; Barrier islands; Vulnerability; Blowouts; GIS; Oil spills; Coastal zone management; Deep water; Ocean currents; Oil slicks; Fronts; Numerical simulations; Coastal oceanography; Geographic Information Systems (GIS); Seawater pollution; Risk assessment; Stakeholders; Simulation; Decision making; Prevention; Energy; Oceans; Economics; Geographic information systems; ASW, Mexico Gulf; ASW, USA, Texas DO - http://dx.doi.org/10.1016/j.ocecoaman.2015.04.014 ER - TY - JOUR T1 - The effect of caprock permeability on shear stress path at the aquifer-caprock interface during fluid injection AN - 1832622952; 743005-28 AB - The permeability of the cap rock is one of the most important properties for determining whether an injected fluid can be sequestered as desired. A literature review on many previously conducted investigations shows that the mechanical properties of a clayey cap rock, such as Young's moduli and Poisson's ratios, are relatively constrained to a small range of potential values in comparison to the permeability, which can vary greatly by many orders of magnitude. We found that the shear stress on the interface between the aquifer and cap rock results in very different temporal behaviors in response to different cap rock permeability. The largest shear stress changes concentrate on the near well region and remain stationary over a long period of time if the cap rock has very low permeability. The shear stresses increase greatly in the near well region at early times but the largest increases tend to migrate to the far side for semi-pervious or pervious cap rock conditions. Shear stress near the well may experience a reversion at the interface due to the delayed expansion of the cap rock if the cap rock is semi-pervious and more expansive than the aquifer formation. Because of the difficulty in measuring the stresses at depth, these stress changes may only be inferred from in-direct signals, such as induced seismicity. This poses the possibility that we may be able to inversely evaluate whether a cap rock formation is tight (very impermeable), or semi-pervious or even permeable by detecting the temporal and spatial occurrences of seismic swarms on the rock interface associated with fluid injection. Abstract Copyright (2015) Elsevier, B.V. JF - International Journal of Rock Mechanics and Mining Sciences (1997) AU - Zhou, Xuejun AU - Burbey, Thomas J AU - Westman, Erik Y1 - 2015/07// PY - 2015 DA - July 2015 SP - 1 EP - 10 PB - Elsevier, Oxford-New York VL - 77 SN - 1365-1609, 1365-1609 KW - areal geology KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832622952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.atitle=The+effect+of+caprock+permeability+on+shear+stress+path+at+the+aquifer-caprock+interface+during+fluid+injection&rft.au=Zhou%2C+Xuejun%3BBurbey%2C+Thomas+J%3BWestman%2C+Erik&rft.aulast=Zhou&rft.aufirst=Xuejun&rft.date=2015-07-01&rft.volume=77&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.issn=13651609&rft_id=info:doi/10.1016%2Fj.ijrmms.2015.03.023 L2 - http://www.sciencedirect.com/science/journal/13651609 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - areal geology DO - http://dx.doi.org/10.1016/j.ijrmms.2015.03.023 ER - TY - JOUR T1 - Pd/SiO2 and AuPd/SiO2 nanocomposite-based optical fiber sensors for H2 sensing applications AN - 1746891422; PQ0002218972 AB - The ability to accurately and safely monitor hydrogen concentration is of significant importance for a broad range of energy, defense, aviation, and aerospace applications with one of the most notable applications being leak detection for hydrogen above the lower explosive limit. Optical-based approaches offer significant safety advantages as compared to electrical-based sensors and Pd or AuPd-alloys are commonly utilized as the functional sensor layer due to a well-known, characteristic, and selective interaction with H2. In this work, optical fiber-based sensors comprised of Pd and AuPd alloy nanoparticle incorporated SiO2 thin films deposited onto unclad multimode silica-based optical fiber evanescent wave absorption spectroscopy sensing elements have been investigated. Selective, sensitive, and monotonic H2 sensing responses have been demonstrated at levels significantly greater than the lower explosive limit in the presence of CO and O2 near room temperature. A tendency for partial oxidation of the noble metal nanoparticles upon exposure to oxidizing atmospheres is confirmed directly through X-ray photoelectron spectroscopy, particularly at elevated temperatures. Monotonic H2 sensing responses are also observed at elevated temperatures in cases where oxygen is not introduced into the atmosphere. However, more complex sensing responses in multi-component elevated temperature gas streams containing oxidizing and reducing species can be observed which likely result from oxidation and reduction of noble metal nanoparticles. These results demonstrate that the incorporation of noble metals such as Pd and Pd-alloy nanoparticles into inert dielectric matrices such as SiO2 can impart new optical sensing functionality potentially useful for H2 sensing applications. JF - Sensors and Actuators B: Chemical AU - Ohodnicki, PR AU - Baltrus, J P AU - Brown, T D AD - Electrochemical and Magnetic Materials Team, Functional Material Development Division, National Energy Technology Laboratory, Pittsburgh, PA, USA Y1 - 2015/07// PY - 2015 DA - July 2015 SP - 159 EP - 168 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 214 SN - 0925-4005, 0925-4005 KW - Health & Safety Science Abstracts KW - Hydrogen sensor KW - Optical sensor KW - Pd nanoparticle KW - Nanocomposite KW - Evanescent wave absorption spectroscopy KW - Metals KW - Leak detection KW - Sensors KW - Safety KW - Temperature KW - Hydrogen KW - Spectroscopy KW - Atmosphere KW - Oxygen KW - Absorption spectroscopy KW - Energy KW - Oxidation KW - Alloys KW - Explosives KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1746891422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Sensors+and+Actuators+B%3A+Chemical&rft.atitle=Pd%2FSiO2+and+AuPd%2FSiO2+nanocomposite-based+optical+fiber+sensors+for+H2+sensing+applications&rft.au=Ohodnicki%2C+PR%3BBaltrus%2C+J+P%3BBrown%2C+T+D&rft.aulast=Ohodnicki&rft.aufirst=PR&rft.date=2015-07-01&rft.volume=214&rft.issue=&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Sensors+and+Actuators+B%3A+Chemical&rft.issn=09254005&rft_id=info:doi/10.1016%2Fj.snb.2015.02.076 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-12-01 N1 - Last updated - 2016-03-30 N1 - SubjectsTermNotLitGenreText - Metals; Leak detection; Sensors; Safety; Temperature; Hydrogen; Spectroscopy; Atmosphere; Oxygen; Absorption spectroscopy; Energy; Oxidation; Alloys; Explosives DO - http://dx.doi.org/10.1016/j.snb.2015.02.076 ER - TY - JOUR T1 - Numerical simulation of porosity and permeability evolution of Mount Simon Sandstone under geological carbon sequestration conditions AN - 1692747635; 2015-061850 AB - A numerical model was developed with the use of reactive transport code CrunchFlow to estimate porosity, permeability and mineral composition changes of Mount Simon sandstone under typical geological carbon sequestration conditions (P = 23.8 MPa and T = 85 degrees C). The model predicted a permeability decrease from 1.60 mD to 1.02 mD for the Mount Simon sandstone sample in a static batch reactor after 180 days of exposure to CO (sub 2) -saturated brine, which is consistent with measured permeability results. Model-predicted solution chemistry results were also consistent with laboratory-measured solution chemistry data. SiO (sub 2) (am) was the primary mineral that causes permeability decrease, followed by kaolinite. Both SiO (sub 2) (am) formation and kaolinite formation were attributed to the dissolution of quartz and feldspar. This study shows that the formation of SiO (sub 2) (am) and kaolinite in the pore space of host rock is possible under typical CO (sub 2) sequestration conditions. SiO (sub 2) (am) and kaolinite precipitation at the CO (sub 2) plume extent could reduce the permeability of host rock and improve lateral containment of free-phase CO (sub 2) , contributing to overall security of CO (sub 2) storage. Abstract Copyright (2015) Elsevier, B.V. JF - Chemical Geology AU - Zhang, Liwei AU - Soong, Yee AU - Dilmore, Robert AU - Lopano, Christina Y1 - 2015/05/18/ PY - 2015 DA - 2015 May 18 SP - 1 EP - 12 PB - Elsevier, Amsterdam VL - 403 SN - 0009-2541, 0009-2541 KW - contaminant plumes KW - sandstone KW - gas storage KW - Mount Simon Sandstone KW - simulation KW - climate change KW - Cambrian KW - reservoir rocks KW - carbon dioxide KW - air pollution KW - Upper Cambrian KW - CrunchFlow KW - sedimentary rocks KW - TOUGHREACT KW - mineral assemblages KW - carbon sequestration KW - textures KW - pollutants KW - Paleozoic KW - numerical analysis KW - statistical analysis KW - prediction KW - pollution KW - porosity KW - models KW - siderite KW - sedimentary petrology KW - mathematical methods KW - reservoir properties KW - clastic rocks KW - carbonates KW - permeability KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692747635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Numerical+simulation+of+porosity+and+permeability+evolution+of+Mount+Simon+Sandstone+under+geological+carbon+sequestration+conditions&rft.au=Zhang%2C+Liwei%3BSoong%2C+Yee%3BDilmore%2C+Robert%3BLopano%2C+Christina&rft.aulast=Zhang&rft.aufirst=Liwei&rft.date=2015-05-18&rft.volume=403&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2015.03.014 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 57 N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-11-19 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - air pollution; Cambrian; carbon dioxide; carbon sequestration; carbonates; clastic rocks; climate change; contaminant plumes; CrunchFlow; gas storage; mathematical methods; mineral assemblages; models; Mount Simon Sandstone; numerical analysis; Paleozoic; permeability; pollutants; pollution; porosity; prediction; reservoir properties; reservoir rocks; sandstone; sedimentary petrology; sedimentary rocks; siderite; simulation; statistical analysis; textures; TOUGHREACT; Upper Cambrian DO - http://dx.doi.org/10.1016/j.chemgeo.2015.03.014 ER - TY - JOUR T1 - Selective cation removal via gel polymerization in Marcellus flowback water AN - 1722157126; 2015-098863 AB - Alginic acid is a linear copolymer consisting of D-mannuronic and L-guluronic acids that forms hydrogels with many divalent cations, including Ca(II), Ba(II), Sr(II), Cu(II), Pb(II) and others. Calcium is primarily used in the formation of gels for biomass immobilization due to its lack of toxicity, but these cations are known to show differing affinities for alginate. Marcellus flowback water from southwestern PA is of high salinity (37 g/L Na) and contains high concentrations of divalent ions Ca>Ba>Sr>Fe>Mn in the ratio of 1843:479:389:20:1. In this study, we examined the selectivity for sequestration of these ions within alginate gel by polymerization and further diffusion and potential displacement reactions. The gel beads were formed by dropping two percent aqueous sodium alginate directly into Marcellus flowback water. The major divalent ions were concentrated Ba>Sr>Ca in alginate gel relative to in situ values. Applications of this technique for water treatment purposes and improving the accuracy of ICP-MS analysis of rare earth and other elements are presented. JF - Abstracts with Programs - Geological Society of America AU - Jain, Jinesh C AU - Edenborn, Harry M AU - Anonymous Y1 - 2015/03// PY - 2015 DA - March 2015 SP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 2 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722157126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Selective+cation+removal+via+gel+polymerization+in+Marcellus+flowback+water&rft.au=Jain%2C+Jinesh+C%3BEdenborn%2C+Harry+M%3BAnonymous&rft.aulast=Jain&rft.aufirst=Jinesh&rft.date=2015-03-01&rft.volume=47&rft.issue=2&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Southeastern Section, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Last updated - 2015-10-15 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Preliminary characterization of acid tar deposits at a historic sulfuric acid plant AN - 1722157106; 2015-098865 AB - In the mid-1800s, petroleum refineries in the U.S. primarily produced kerosene for lamps from crude oil. The distilled kerosene fraction was further refined by adding concentrated sulfuric acid to oxidize and remove higher molecular weight hydrocarbons and tars to clarify the kerosene and reduce smoke production during burning. Waste tar-laden and diluted sulfuric acid from Titusville, PA refineries was sent by rail to a factory two miles away where the tar was removed and concentrated sulfuric acid was produced by distillation. Today, the factory site remains unvegetated nearly 100 years after its closing, and the soil is highly contaminated with lead and acid tar. The acid tar is believed to provide a semi-continuous source of sulfuric acid, organic acids, and other heavy metals. The periodic warming of tar deposits exposes new surface area to contact with rainwater and generation of more contaminants associated with acid tar. In this report, we present the initial characterization of representative tar samples from the site. The tar had a dry wt of ca. 65%, a bulk density of 1.7, and contained ca. 2 and 21 g/kg total Pb and sulfate as sulfuric acid, respectively, along with detectable concentrations of As and Sb, common Pb alloying elements. Organic analysis of the tar was performed using liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/Q-TOF-MS), and detected a wide range of compounds, including polyaromatic hydrocarbons. Results of these studies will be used to design feasible bioremediation approaches for the reclamation of the contaminated site. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, Harry M AU - Jain, Jinesh AU - Mishra, Vidhi AU - Anonymous Y1 - 2015/03// PY - 2015 DA - March 2015 SP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 2 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722157106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Preliminary+characterization+of+acid+tar+deposits+at+a+historic+sulfuric+acid+plant&rft.au=Edenborn%2C+Harry+M%3BJain%2C+Jinesh%3BMishra%2C+Vidhi%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=Harry&rft.date=2015-03-01&rft.volume=47&rft.issue=2&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Southeastern Section, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Last updated - 2015-10-15 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Use of barite-modified hydrogel beads to simulate free-phase organic pollutant transport in aquatic systems AN - 1722157059; 2015-098869 AB - The fates of organic pollutants entering surface waters and karst aquifers are difficult to track and model because the mobility of specific compounds is dependent on physicochemical properties such as density. Alginate hydrogel beads have been used as tracers to mimic the free-phase transport of organic compounds less dense than water (LNAPLs) by adding flotation agents (glass beads, gas inclusions) to the alginate matrix. In this study, we added relatively dense barite (BaSO4) powder to produce alginate hydrogel beads that could be designed to mimic the density of NAPLs between 1.01 and 1.83 g cm-3. Beads mimicking the density of free-phase organic contaminants relevant to Superfund sites were produced in the laboratory. Increased alginate concentrations produced stronger gel beads with greater resistance to sediment abrasion. Fluorescent pigment powders were added to differentiate beads representing specific organic compounds. Experimentally measured minimum stream flow velocities needed to transport barite-modified hydrogel beads were consistent with anticipated and measured bead densities. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, Harry M AU - Howard, Bret AU - Vesper, Dorothy J AU - Anonymous Y1 - 2015/03// PY - 2015 DA - March 2015 SP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 2 SN - 0016-7592, 0016-7592 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722157059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Use+of+barite-modified+hydrogel+beads+to+simulate+free-phase+organic+pollutant+transport+in+aquatic+systems&rft.au=Edenborn%2C+Harry+M%3BHoward%2C+Bret%3BVesper%2C+Dorothy+J%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=Harry&rft.date=2015-03-01&rft.volume=47&rft.issue=2&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Southeastern Section, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Last updated - 2015-10-15 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Competitive influence of H (sub 2) S on CO (sub 2) measurements in groundwater by multiple volumetric expansion AN - 1722156974; 2015-098867 AB - Geological carbon capture and sequestration (CCS) has been proposed as a way to lessen global climate change due to fossil fuel combustion, but the potential migration of CO2 and mobilized pollutants to groundwater associated with these sites is a concern. The CarboQC carbonation meter is a method of CO2 analysis in water that is based on the ideal gas law by measuring equilibrium temperature and pressure resulting from the multiple expansion of a sealed sample volume. This method is effective using carbonated beverages and most natural waters because the solubility of potentially interfering O2 and N2 gases is over 50 times lower in water than it is for CO2. However, hydrogen sulfide (H2S), which is even more soluble than CO2 in water, is occasionally encountered in very high concentrations in groundwater samples, especially those associated with high-S petroleum deposits or natural gas production. In this study, we examined the effects of H2S associated with water samples from a natural spring in Virginia and saline produced waters from enhanced oil recovery (EOR) wells in Texas on the measurement of CO2 using the CarboQC meter. Both copper sulfate and zinc acetate were tested as ways of eliminating the H2S fraction via precipitation of metal sulfides and determining the CO2 concentration by difference. Copper sulfide was rapidly precipitated in EOR well samples containing 500-800 mg/L H2S, but the reaction simultaneously lowered the pH to ca. 1.5. As a result, detectable CO2 levels were actually increased due to the net acidification of the sample. The potential for this analytical approach to be effective in such waters is considered and discussed relative to recently observed effects on the mutual interaction between the two gases and their respective solubilities in water. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, Harry M AU - Vesper, Dorothy J AU - Anonymous Y1 - 2015/03// PY - 2015 DA - March 2015 SP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 2 SN - 0016-7592, 0016-7592 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722156974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Competitive+influence+of+H+%28sub+2%29+S+on+CO+%28sub+2%29+measurements+in+groundwater+by+multiple+volumetric+expansion&rft.au=Edenborn%2C+Harry+M%3BVesper%2C+Dorothy+J%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=Harry&rft.date=2015-03-01&rft.volume=47&rft.issue=2&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Southeastern Section, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Last updated - 2015-10-15 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Monitoring carbonate precipitation and dissolution due to elevated CO (sub 2) in groundwaters AN - 1722156343; 2015-098868 AB - Protecting subsurface groundwater is an important component of carbon capture and sequestration (CCS) risk assessment. Reactive transport modeling and simulations can anticipate expected geochemical transformations due to CO2 leaks within a given aquifer, but field experiments are still necessary to critique model predictions and to document in situ reaction rates. Geological formations associated with storage sites may include a wide range of reactive silicate, oxide, oxyhydroxide, carbonate, and sulfide minerals, and the stability of these minerals may be affected when aqueous chemical equilibria are modified by leaking CO2. In this study, we propose the use of laser-induced breakdown spectroscopy (LIBS) to monitor the precipitation and dissolution of carbonate minerals in the presence of CO2. The technique has successfully been used to conduct laboratory-scale experiments to measure calcium and other cations in aqueous samples. Stability fields for a wide range of carbonate minerals over a pH range of 5-8 were determined by geochemical modeling. Experiments using ICP analysis detected changes in dissolved divalent ions due to precipitation and dissolution reactions when CO2 gas was added incrementally. The aim of this research is to develop a method for in situ monitoring of CO2 leakage into groundwater aquifers. JF - Abstracts with Programs - Geological Society of America AU - Jain, Jinesh C AU - Edenborn, Harry M AU - Anonymous Y1 - 2015/03// PY - 2015 DA - March 2015 SP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 2 SN - 0016-7592, 0016-7592 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722156343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Monitoring+carbonate+precipitation+and+dissolution+due+to+elevated+CO+%28sub+2%29+in+groundwaters&rft.au=Jain%2C+Jinesh+C%3BEdenborn%2C+Harry+M%3BAnonymous&rft.aulast=Jain&rft.aufirst=Jinesh&rft.date=2015-03-01&rft.volume=47&rft.issue=2&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Southeastern Section, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Last updated - 2015-10-15 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Fabrication of MMMs with improved gas separation properties using externally-functionalized MOF particles AN - 1673392632; PQ0001132374 AB - Mixed matrix membranes (MMM) have the potential to overcome the limitations of traditional polymeric membranes for gas separation by improving both the permeability and selectivity. The most difficult challenge is accessing defect free and optimized MMM membranes. Defects are generally due to incompatible interfaces between the polymer and the filler particle. Herein, we present a new approach to modify and optimize the surface of UiO-66-NH sub(2) based MOF particles to improve its interaction with Matrimid super( registered ) polymer. A series of surface modified UiO-66-NH sub(2) particles were synthesized and characterized using super(1)H NMR spectroscopy, mass spectrometry, XPS, and powder X-ray diffraction. MMMs containing surface optimized MOF particles exhibit improved thermal and mechanical properties. Most importantly, the MMMs show significantly enhanced gas separation properties; CO sub(2) permeability was increased by similar to 200% and CO sub(2)/N sub(2) ideal selectivity was increased by similar to 25%. These results confirm the success of the proposed technique to mitigate defective MOF/Matrimid super( registered ) interfaces. JF - Journal of materials chemistry. A, Materials for energy and sustainability AU - Venna, Surendar R AU - Lartey, Michael AU - Li, Tao AU - Spore, Alex AU - Kumar, Santosh AU - Nulwala, Hunaid B AU - Luebke, David R AU - Rosi, Nathaniel L AU - Albenze, Erik AD - National Energy Technology Laboratory; Pittsburgh; PA 15236; USA; , erik.albenze@netl.doe.gov Y1 - 2015/02// PY - 2015 DA - Feb 2015 SP - 5014 EP - 5022 PB - Royal Society of Chemistry VL - 3 IS - 9 SN - 2050-7488, 2050-7488 KW - Sustainability Science Abstracts KW - Permeability KW - Membranes KW - Energy KW - Mass spectrometry KW - Particulates KW - NMR KW - Carbon dioxide KW - Polymers KW - X-ray diffraction KW - Spectroscopy KW - Sustainability KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673392632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.atitle=Fabrication+of+MMMs+with+improved+gas+separation+properties+using+externally-functionalized+MOF+particles&rft.au=Venna%2C+Surendar+R%3BLartey%2C+Michael%3BLi%2C+Tao%3BSpore%2C+Alex%3BKumar%2C+Santosh%3BNulwala%2C+Hunaid+B%3BLuebke%2C+David+R%3BRosi%2C+Nathaniel+L%3BAlbenze%2C+Erik&rft.aulast=Venna&rft.aufirst=Surendar&rft.date=2015-02-01&rft.volume=3&rft.issue=9&rft.spage=5014&rft.isbn=&rft.btitle=&rft.title=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.issn=20507488&rft_id=info:doi/10.1039%2Fc4ta05225k LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-04-01 N1 - Number of references - 50 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Permeability; Membranes; Energy; Mass spectrometry; NMR; Particulates; Spectroscopy; X-ray diffraction; Polymers; Carbon dioxide; Sustainability DO - http://dx.doi.org/10.1039/c4ta05225k ER - TY - JOUR T1 - An evaluation of fracture growth and gas/fluid migration as horizontal Marcellus Shale gas wells are hydraulically fractured in Greene County, Pennsylvania AN - 1819897820; 2016-078015 AB - This field study monitored the induced fracturing of six horizontal Marcellus Shale gas wells in Greene County, Pennsylvania. The study had two research objectives: 1) to determine the maximum height of fractures created by hydraulic fracturing at this location; and 2) to determine if natural gas or fluids from the hydraulically fractured Marcellus Shale had migrated 3,800 ft upward to an overlying Upper Devonian/Lower Mississippian gas field during or after hydraulic fracturing. Microseismic monitoring using vertical geophone arrays located 10,288 microseismic events during hydraulic fracturing; all events were at least 2,000 ft below producing zones in the overlying Upper Devonian/Lower Mississippian gas field, and more than 5,000 ft below drinking water aquifers. Monitoring for evidence of fluid and gas migration was performed during and after the hydraulic fracturing of six horizontal Marcellus Shale gas wells and included: 1) gas pressure and production histories of three Upper Devonian/Lower Mississippian wells; 2) chemical and isotopic analysis of the gas produced from seven Upper Devonian/Lower Mississippian wells; 3) chemical and isotopic analysis of water produced from five Upper Devonian/Lower Mississippian wells; and 4) monitoring for perfluorocarbon tracers in gas produced from two Upper Devonian/Lower Mississippian wells. Current findings are: 1) no evidence of gas migration from the Marcellus Shale; and 2) no evidence of brine migration from the Marcellus Shale. Four perfluorocarbon tracers were injected with hydraulic fracturing fluids into 10 stages of a 14-stage, horizontal Marcellus Shale gas well during stimulation. Gas samples collected from two Upper Devonian/Lower Mississippian wells that directly overlie the tracer injection well were analyzed for presence of the tracer. No tracer was found in 17 gas samples taken from each of the two wells during the 2-month period after completion of the hydraulic fracturing. Conclusions of this study are: 1) the impact of hydraulic fracturing on the rock mass did not extend to the Upper Devonian/Lower Mississippian gas field; and 2) there has been no detectable migration of gas or aqueous fluids to the Upper Devonian/Lower Mississippian gas field during the monitored period after hydraulic fracturing. JF - Abstracts with Programs - Geological Society of America AU - Hammack, Richard W AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - 692 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 7 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819897820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=An+evaluation+of+fracture+growth+and+gas%2Ffluid+migration+as+horizontal+Marcellus+Shale+gas+wells+are+hydraulically+fractured+in+Greene+County%2C+Pennsylvania&rft.au=Hammack%2C+Richard+W%3BAnonymous&rft.aulast=Hammack&rft.aufirst=Richard&rft.date=2015-01-01&rft.volume=47&rft.issue=7&rft.spage=692&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2015 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-09-16 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Seasonal variations in diel behavior of dissolved inorganic carbon in a coal mine drainage stream AN - 1797538455; 2016-053066 AB - Diel (24 hour) cycling of dissolved inorganic carbon (DIC) is well documented in freshwater settings, such as karst and mountain streams, but few data exist that characterize the diel cycling of DIC in coal mine drainage. Consequently, we evaluate diel cycles of DIC, CO (sub 2) , and delta (super 13) C (sub DIC) in mine drainage in north-central West Virginia in late winter, mid spring, and summer at two sites along the drainage stream. The upstream site (50 m from the mine portal) is lined with limestone riprap and is exposed to less direct sunlight, has less emergent vegetation, and exhibits a faster flow rate than the downstream site (138 m from the mine portal), which is in an altered natural wetland. The differences in characteristics were expected to affect the diel cycling of CO (sub 2) and DIC, and thus impact other solute compositions. The data were fit using a cosine model to assess the magnitude and phase of diel cycles, and the goodness of fit of the model was determined using an F-test statistic. DIC concentrations were higher at the upstream site (2.09 mM - 3.35 mM) than the downstream site (1.11 mM - 1.77) as CO (sub 2) degasses downstream. Over the three sampling periods, DIC and CO (sub 2) concentrations remained approximately constant at the upstream site but decreased slightly over time at the downstream site as temperature increased from winter to summer. The downstream site in late winter exhibited the best fit cycle with the DIC and CO (sub 2) increasing during the nighttime concurrent with a decrease in pH and delta (super 13) C (sub DIC) values. These changes are consistent with the release of CO (sub 2) during plant and sedimentary respiration, while the daytime increase in delta (super 13) C (sub DIC) values during the day is consistent with photosynthesis. Significant cycles (at a < 0.01) include (1) DIC-late winter and summer at the downstream site; (2) CO (sub 2) -only during late winter at both sites; and, (3) delta (super 13) C (sub DIC) -during spring and summer at the downstream site. Mechanisms likely controlling diel cycles of these parameters are temperature-dependent CO (sub 2) degassing, photosynthesis- respiration diel cycles in plants and sediments, and interactions with the metals present at high concentrations in the mine water. JF - Abstracts with Programs - Geological Society of America AU - Riddell, Jill L AU - Vesper, Dorothy J AU - Edenborn, Harry M AU - Martin, Jonathan B AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - 844 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 7 SN - 0016-7592, 0016-7592 KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797538455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Seasonal+variations+in+diel+behavior+of+dissolved+inorganic+carbon+in+a+coal+mine+drainage+stream&rft.au=Riddell%2C+Jill+L%3BVesper%2C+Dorothy+J%3BEdenborn%2C+Harry+M%3BMartin%2C+Jonathan+B%3BAnonymous&rft.aulast=Riddell&rft.aufirst=Jill&rft.date=2015-01-01&rft.volume=47&rft.issue=7&rft.spage=844&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2015 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-06-17 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Assessing the potential remobilization of rare earth elements from black shale during hydraulic fracturing operations AN - 1780804787; 2016-034309 AB - The rare earth elements (REEs) are economically vital to modern society and are critical components in areas such as sustainable technologies, electronics, and high energy lasers. The rapid growth of these technologies has placed considerable economic pressure on sourcing REEs, with the current global supply dominated by mineral deposits in China. In light of this global demand for REEs, alternative sources are an area of active exploration. One potential source is ancient sedimentary black shale deposits that are currently being exploited for natural gas and oil resources. Past environmental conditions that promoted the accumulation of these black shale units were also interconnected with the cycling of sedimentary phosphorus, which is thought to be a major control on the accumulation of REEs in sediments. Drilling operations to extract natural gas from black shale units present a concomitant potential to remobilize the REEs and bring them to the surface for further extraction. However, the geochemical reactions that determine the mobility of REEs between the native black shale rock and the introduced hydraulic fracturing drilling fluids are not well understood. We present the results of our experiment as a basis for understanding these reactions between the drilling fluid and the targeted rock formations. We reacted black shale samples from the Marcellus Formation in southwestern Pennsylvania with a NaCl brine and a synthesized hydraulic fracturing fluid (FF) for a duration of one week under high temperatures and pressures that approximated those from 2.5 km below the surface. Preliminary analysis of the reacted fluids shows evidence for the dissolution of carbonates with an increase in dissolved Ca (44,000-190,000 mu g/L) after one week. The presence of the synthesized FF versus the NaCl brine does not appear to have a noticeable effect on the major cation solution chemistry. The REEs show little change in the fluid phase during reactions with the NaCl brine, but do show slight decreases (<8 mu g/L for all REEs) during the reaction with synthesized FF. These preliminary results suggest that the net mobility of REEs during reactions between fluid and rock is minor, although this could be an artifact of the particular rock samples utilized that may not be representative of the Marcellus Formation as a whole. JF - Abstracts with Programs - Geological Society of America AU - Yang, Jon AU - Torres, M E AU - Verba, Circe AU - Hakala, J Alexandra AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - 391 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 7 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780804787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Assessing+the+potential+remobilization+of+rare+earth+elements+from+black+shale+during+hydraulic+fracturing+operations&rft.au=Yang%2C+Jon%3BTorres%2C+M+E%3BVerba%2C+Circe%3BHakala%2C+J+Alexandra%3BAnonymous&rft.aulast=Yang&rft.aufirst=Jon&rft.date=2015-01-01&rft.volume=47&rft.issue=7&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2015 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-04-14 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Engaging a tribal college in the assessment of oil and gas resources on a Sioux Indian reservation AN - 1761073498; 2016-009190 AB - The National Energy Technology Laboratory (NETL) of the U.S. Department of Energy has been participating in a cooperative education program with the South Dakota School of Mines and Technology and Sinte Gleska University to assess the hydrocarbon potential of the Niobrara Formation on the Rosebud Reservation in South Dakota. The intent was to engage tribal college students in the oil and gas resource evaluation process, which could perhaps lead to interest and future careers in energy exploration and production. The project was funded by the American Indian Higher Education Consortium (AIHEC) and the American Indian Science & Engineering Society (AISES), with in-kind contributions from NETL that included gas shale expertise, geological characterization, and geochemical analyses. The tribal government desired an objective, practical assessment of the resource from the college. Potential development could lead to more jobs, economic opportunities, and affordable energy on the reservation. The Niobrara is a significant play in Colorado and Wyoming, but is not produced commercially in South Dakota. Project objectives were to characterize the stratigraphy, composition, depositional environments, reservoir properties, regional trends, structural features, and potentially-productive areas of the formation on the reservation. Several professors and research scientists provided guidance to undergraduate STEM students, graduate geology students, and post-graduate interns. Niobrara drill cores were sampled at the USGS core library, and the state geological survey provided access to new core from the Niobrara Formation south of Presho, SD. Although relatively shallow under the reservation, the Niobrara may contain as much as 6% organic matter with a thermal maturity in the biogenic gas window. Any energy development on tribal land would require environmental monitoring, which has also engaged students. The Niobrara at Rosebud is not anticipated to produce large amounts of gas that would justify a pipeline connection. The gas will have to be used locally, prompting additional research on utilization technology. The relatively inexpensive drilling costs may provide the tribe with a secure and economical energy supply, suggesting an approach for stranded gas development that could be applied elsewhere. JF - Abstracts with Programs - Geological Society of America AU - Soeder, Daniel J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - 46 PB - Geological Society of America (GSA), Boulder, CO VL - 47 IS - 7 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761073498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Engaging+a+tribal+college+in+the+assessment+of+oil+and+gas+resources+on+a+Sioux+Indian+reservation&rft.au=Soeder%2C+Daniel+J%3BAnonymous&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2015-01-01&rft.volume=47&rft.issue=7&rft.spage=46&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2015 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-01-29 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Indian National Gas Hydrate Program Expedition 01 report AN - 1692747228; 2015-061942 AB - Gas hydrate is a naturally occurring "ice-like" combination of natural gas and water that has the potential to serve as an immense resource of natural gas from the world's oceans and polar regions. However, gas-hydrate recovery is both a scientific and a technical challenge and much remains to be learned about the geologic, engineering, and economic factors controlling the ultimate energy resource potential of gas hydrate. The amount of natural gas contained in the world's gas-hydrate accumulations is enormous, but these estimates are speculative and range over three orders of magnitude from about 2,800 to 8,000,000 trillion cubic meters of gas. By comparison, conventional natural gas accumulations (reserves and undiscovered, technically recoverable resources) for the world are estimated at approximately 440 trillion cubic meters. Gas recovery from gas hydrate is hindered because the gas is in a solid form and because gas hydrate commonly occurs in remote Arctic and deep marine environments. Proposed methods of gas recovery from gas hydrate generally deal with disassociating or "melting" in situ gas hydrate by heating the reservoir beyond the temperature of gas-hydrate formation, or decreasing the reservoir pressure below hydrate equilibrium. The pace of energy-related gas hydrate assessment projects has accelerated over the past several years. The Indian National Gas Hydrate Program Expedition 01 was designed to study the gas-hydrate occurrences off the Indian Peninsula and along the Andaman convergent margin with special emphasis on understanding the geologic and geochemical controls on the occurrence of gas hydrate in these two diverse settings. During Indian National Gas Hydrate Program Expedition 01, dedicated gas-hydrate coring, drilling, and downhole logging operations were conducted from 28 April 2006 to 19 August 2006. JF - Scientific Investigations Report AU - Collett, Timothy S AU - Riedel, M AU - Boswell, R AU - Presley, J AU - Kumar, P AU - Sathe, A AU - Sethi, A AU - Lall, M Y1 - 2015 PY - 2015 DA - 2015 PB - U. S. Geological Survey, Reston, VA SN - 2328-031X, 2328-031X KW - resources KW - programs KW - petroleum exploration KW - gas hydrates KW - natural gas KW - Andaman Sea KW - petroleum KW - downhole methods KW - Indian National Gas Hydrate Program KW - recovery KW - reservoir rocks KW - India KW - exploration KW - Indian Ocean KW - Indian Peninsula KW - marine environment KW - arctic environment KW - Ocean Drilling Program KW - drilling KW - JOIDES KW - Asia KW - USGS KW - Expedition 01 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692747228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+Investigations+Report&rft.atitle=Indian+National+Gas+Hydrate+Program+Expedition+01+report&rft.au=Collett%2C+Timothy+S%3BRiedel%2C+M%3BBoswell%2C+R%3BPresley%2C+J%3BKumar%2C+P%3BSathe%2C+A%3BSethi%2C+A%3BLall%2C+M&rft.aulast=Collett&rft.aufirst=Timothy&rft.date=2015-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Scientific+Investigations+Report&rft.issn=2328031X&rft_id=info:doi/10.3133%2Fsir20125054 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 127 N1 - PubXState - VA N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-07-02 N1 - SubjectsTermNotLitGenreText - Andaman Sea; arctic environment; Asia; downhole methods; drilling; Expedition 01; exploration; gas hydrates; India; Indian National Gas Hydrate Program; Indian Ocean; Indian Peninsula; JOIDES; marine environment; natural gas; Ocean Drilling Program; petroleum; petroleum exploration; programs; recovery; reservoir rocks; resources; USGS DO - http://dx.doi.org/10.3133/sir20125054 ER - TY - JOUR T1 - Exergy & economic analysis of biogas fueled solid oxide fuel cell systems AN - 1651434335; 21183838 AB - We present an exergy and an economic analysis of a power plant that uses biogas produced from a thermophilic anaerobic digester (AD) to fuel a solid oxide fuel cell (SOFC). We performed a 4-variable parametric analysis of the AD-SOFC system in order to determine the optimal design operation conditions, depending on the objective function of interest We present results on the exergy efficiency (%), power normalized capital cost (kW super(-1)), and the internal rate of return on investment, IRR, (% yr super(-1)) as a function of the current density, the stack pressure, the fuel utilization, and the total air stoichiometric ratio. To the authors' knowledge, this is the first AD-SOFC paper to include the cost of the AD when conducting economic optimization of the AD-SOFC plant. Our calculations show that adding a new AD-SOFC system to an existing waste water treatment (WWT) plant could yield positives values of IRR at today's average electricity prices and could significantly out-compete other options for using biogas to generate electricity. AD-SOFC systems could likely convert WWT plants into net generators of electricity rather than net consumers of electricity while generating economically viable rates of return on investment if the costs of SOFC systems are within a factor of two of the DOE/SECA cost targets. JF - Journal of Power Sources AU - Siefert, Nicholas S AU - Litster, Shawn AD - National Energy Technology Laboratory, Department of Energy, Pittsburgh, PA, USA; Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA nicholas.siefert@netl.doe.gov Y1 - 2014/12/25/ PY - 2014 DA - 2014 Dec 25 SP - 386 EP - 397 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 272 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Anaerobic digestion KW - Solid oxide fuel cell KW - Thermo-economic analysis KW - Exergy KW - Renewable power generation KW - Plants (organisms) KW - Cost engineering KW - Economics KW - Solid oxide fuel cells KW - Power plants KW - Electricity KW - Biogas UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651434335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Exergy+%26amp%3B+economic+analysis+of+biogas+fueled+solid+oxide+fuel+cell+systems&rft.au=Siefert%2C+Nicholas+S%3BLitster%2C+Shawn&rft.aulast=Siefert&rft.aufirst=Nicholas&rft.date=2014-12-25&rft.volume=272&rft.issue=&rft.spage=386&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2014.08.044 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-02-01 N1 - Last updated - 2015-05-04 DO - http://dx.doi.org/10.1016/j.jpowsour.2014.08.044 ER - TY - CPAPER T1 - Evaluating the Influence of Chemical Reactions on Wellbore Cement Integrity and Geochemical Tracer Behavior in Hydraulically-Fractured Shale Formations T2 - 47th American Geophysical Union Fall Meeting AN - 1651741928; 6333283 JF - 47th American Geophysical Union Fall Meeting AU - Verba, Circe AU - Lieuallen, Athena AU - Yang, Jonathon AU - Torres, Marta AU - Hakala, Alexandra Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Tracers KW - Cement KW - Chemical reactions KW - Geochemistry KW - Shale UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+the+Influence+of+Chemical+Reactions+on+Wellbore+Cement+Integrity+and+Geochemical+Tracer+Behavior+in+Hydraulically-Fractured+Shale+Formations&rft.au=Verba%2C+Circe%3BLieuallen%2C+Athena%3BYang%2C+Jonathon%3BTorres%2C+Marta%3BHakala%2C+Alexandra&rft.aulast=Verba&rft.aufirst=Circe&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Hydraulic Aperture Reduction of Shale Fractures Due to Mechanical Stressing, with Characterization of Physical Fracture Evolution Using Comuted Tomography T2 - 47th American Geophysical Union Fall Meeting AN - 1651740298; 6329345 JF - 47th American Geophysical Union Fall Meeting AU - Crandall, Dustin AU - Gill, Magdalena AU - Moore, Johnathan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Hydraulics KW - Fractures KW - Tomography KW - Shale KW - Evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Bombing+Strikes+Kabul+Crowd&rft.au=Anonymous&rft.aulast=Anonymous&rft.aufirst=&rft.date=2011-12-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Experimental Evaluation of the Change in Fracture Geometry and Permeability Due to Shearing T2 - 47th American Geophysical Union Fall Meeting AN - 1651738260; 6328707 JF - 47th American Geophysical Union Fall Meeting AU - Crandall, Dustin AU - Gill, Magdalena AU - Moore, Johnathan AU - Tennant, Bryan AU - Bromhal, Grant Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Permeability KW - Fractures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+Evaluation+of+the+Change+in+Fracture+Geometry+and+Permeability+Due+to+Shearing&rft.au=Crandall%2C+Dustin%3BGill%2C+Magdalena%3BMoore%2C+Johnathan%3BTennant%2C+Bryan%3BBromhal%2C+Grant&rft.aulast=Crandall&rft.aufirst=Dustin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - JOUR T1 - Monsoon-influenced variation in productivity and lithogenic sediment flux since 110 ka in the offshore Mahanadi Basin, northern Bay of Bengal AN - 1840617741; 2016-097442 AB - The Indian monsoon drives seasonal changes in precipitation and weathering across India as well as circulation and productivity in the northern Indian Ocean. Variation in paleo-monsoon intensity and its effect on productivity and lithogenic fluxes is poorly constrained in the Bay of Bengal. In this paper, we present analysis of a sediment record from the offshore Mahanadi Basin recovered during the Indian National Gas Hydrate Program Expedition 01 (Site NGHP-01-19B). We reconstruct variation in biogenic and lithogenic components during the last 110 kyr using measurements of total organic carbon (TOC), total nitrogen (TN), TOC/TN, CaCO (sub 3) , biogenic silica (BSi), delta (super 13) TOC, delta (super 15) TN, bulk mineralogy from X-ray diffraction, bulk and lithogenic grain size distribution, magnetic susceptibility, bulk density, and Ca, Br, and Zr/Rb from x-ray fluorescence (XRF). The mass-accumulation rate (MAR) of CaCO (sub 3) , a function of marine productivity, drastically increased between 70 and 10 ka and is correlated to previously-documented elevated Asian dust fluxes and increased Bay of Bengal salinity during a weakened southwest monsoon. Decreased freshwater input over this period likely diminished stratification, allowing for increased mixing and nutrient availability, thus enhancing productivity despite weaker southwest monsoon winds. The MAR of lithogenic material is highest during the Holocene suggesting that sediment supply driven by monsoon intensity is a stronger control on margin sedimentation than sea level at the Mahanadi Basin. Over the entire record, magnetic susceptibility and XRF Zr/Rb are strongly correlated with CaCO (sub 3) , suggesting higher primary mineral input under a weakened southwest monsoon. TOC/TN and delta (super 13) TOC also increase under glacial conditions, suggesting higher relative input of terrestrial C4 organic matter. These results highlight the Mahanadi Basin as a supply-dominated margin where terrigenous sedimentation is strongly influenced by monsoon intensity, and that productivity is limited by variation in monsoon-driven stratification on glacial-interglacial timescales rather than a direct response to monsoon winds. Abstract Copyright (2014) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Phillips, Stephen C AU - Johnson, Joel E AU - Giosan, Liviu AU - Rose, Kelly K Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 502 EP - 525 PB - Elsevier, Oxford VL - 58 IS - Part A SN - 0264-8172, 0264-8172 KW - calcium KW - paleo-oceanography KW - zirconium KW - paleoclimatology KW - magnetic properties KW - India KW - Foraminifera KW - barium KW - carbon KW - chemostratigraphy KW - absolute age KW - Invertebrata KW - Mahanadi Basin KW - Asia KW - Protista KW - N-15/N-14 KW - Quaternary KW - biostratigraphy KW - C-13/C-12 KW - paleomagnetism KW - organic compounds KW - lithostratigraphy KW - isotopes KW - magnetostratigraphy KW - stable isotopes KW - cores KW - nitrogen KW - Cenozoic KW - monsoons KW - marine sediments KW - radioactive isotopes KW - Indian Ocean KW - Indian Peninsula KW - eastern India KW - total organic carbon KW - silica KW - sediments KW - calcium carbonate KW - chemical ratios KW - productivity KW - alkaline earth metals KW - chronostratigraphy KW - isotope ratios KW - grain size KW - rubidium KW - alkali metals KW - Bay of Bengal KW - metals KW - upper Quaternary KW - magnetic susceptibility KW - C-14 KW - microfossils KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840617741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Monsoon-influenced+variation+in+productivity+and+lithogenic+sediment+flux+since+110+ka+in+the+offshore+Mahanadi+Basin%2C+northern+Bay+of+Bengal&rft.au=Phillips%2C+Stephen+C%3BJohnson%2C+Joel+E%3BGiosan%2C+Liviu%3BRose%2C+Kelly+K&rft.aulast=Phillips&rft.aufirst=Stephen&rft.date=2014-12-01&rft.volume=58&rft.issue=Part+A&rft.spage=502&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2014.05.007 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 253 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - absolute age; alkali metals; alkaline earth metals; Asia; barium; Bay of Bengal; biostratigraphy; C-13/C-12; C-14; calcium; calcium carbonate; carbon; Cenozoic; chemical ratios; chemostratigraphy; chronostratigraphy; cores; eastern India; Foraminifera; grain size; India; Indian Ocean; Indian Peninsula; Invertebrata; isotope ratios; isotopes; lithostratigraphy; magnetic properties; magnetic susceptibility; magnetostratigraphy; Mahanadi Basin; marine sediments; metals; microfossils; monsoons; N-15/N-14; nitrogen; organic compounds; paleo-oceanography; paleoclimatology; paleomagnetism; productivity; Protista; Quaternary; radioactive isotopes; rubidium; sediments; silica; stable isotopes; total organic carbon; upper Quaternary; zirconium DO - http://dx.doi.org/10.1016/j.marpetgeo.2014.05.007 ER - TY - JOUR T1 - Sampling disturbance in hydrate-bearing sediment pressure cores; NGHP-01 Expedition, Krishna-Godavari Basin example AN - 1840616167; 2016-097420 AB - Sampling natural sediments causes unavoidable disturbance as recovered sediments experience changes in stress and strain during drilling, core recovery, transportation, handling, and early stages of testing. In hydrate-bearing sediments, the potential for sampling disturbance may be aggravated, since pressure and temperature changes can lead to hydrate dissociation and gas exsolution. Pressure core technology attempts to recover and characterize hydrate-bearing sediments while preserving them under in situ pressure and temperature conditions, which is an essential requirement to assess the mechanical, physical, chemical, and biological properties of natural hydrate-bearing sediments. Previous studies on near-surface sampling effects are extended in this study to evaluate additional sampling disturbances relevant to hydrate-bearing sediments: (1) hydrate dissociation due to mechanical extension, (2) negative pore pressure generation during unloading (Mandel-Cryer effect), (3) secondary hydrate formation, (4) changes in hydrate mass as a function of changes in pressure and temperature within the stability field, (5) hydrate anomalous preservation and its benefits for pressure core handling and testing, and (6) relaxation/aging following sampling. Results provide valuable insight to sampler design, coring and operation procedures, high pressure chamber design, and pressure core testing techniques. Abstract Copyright (2014) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Dai, Sheng AU - Santamarina, J Carlos Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 178 EP - 186 PB - Elsevier, Oxford VL - 58 IS - Part A SN - 0264-8172, 0264-8172 KW - continental margin KW - gas hydrates KW - offshore KW - natural gas KW - Krishna-Godavari Basin KW - stability KW - petroleum KW - Indian National Gas Hydrate Program KW - cores KW - India KW - marine sediments KW - Indian Ocean KW - Bay of Bengal KW - sampling KW - Indian Peninsula KW - eastern India KW - sediments KW - exsolution KW - Asia KW - preservation KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840616167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Sampling+disturbance+in+hydrate-bearing+sediment+pressure+cores%3B+NGHP-01+Expedition%2C+Krishna-Godavari+Basin+example&rft.au=Dai%2C+Sheng%3BSantamarina%2C+J+Carlos&rft.aulast=Dai&rft.aufirst=Sheng&rft.date=2014-12-01&rft.volume=58&rft.issue=Part+A&rft.spage=178&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2014.07.013 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 74 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Asia; Bay of Bengal; continental margin; cores; eastern India; exsolution; gas hydrates; India; Indian National Gas Hydrate Program; Indian Ocean; Indian Peninsula; Krishna-Godavari Basin; marine sediments; natural gas; offshore; petroleum; preservation; sampling; sediments; stability DO - http://dx.doi.org/10.1016/j.marpetgeo.2014.07.013 ER - TY - JOUR T1 - Anomalous porosity preservation and preferential accumulation of gas hydrate in the Andaman accretionary wedge, NGHP-01 Site 17A AN - 1840615684; 2016-097416 AB - In addition to well established properties that control the presence or absence of the hydrate stability zone, such as pressure, temperature, and salinity, additional parameters appear to influence the concentration of gas hydrate in host sediments. The stratigraphic record at Site 17A in the Andaman Sea, eastern Indian Ocean, illustrates the need to better understand the role pore-scale phenomena play in the distribution and presence of marine gas hydrates in a variety of subsurface settings. In this paper we integrate field-generated datasets with newly acquired sedimentology, physical property, imaging and geochemical data with mineral saturation and ion activity products of key mineral phases such as amorphous silica and calcite, to document the presence and nature of secondary precipitates that contributed to anomalous porosity preservation at Site 17A in the Andaman Sea. This study demonstrates the importance of grain-scale subsurface heterogeneities in controlling the occurrence and distribution of concentrated gas hydrate accumulations in marine sediments, and document the importance that increased permeability and enhanced porosity play in supporting gas concentrations sufficient to support gas hydrate formation. The grain scale relationships between porosity, permeability, and gas hydrate saturation documented at Site 17A likely offer insights into what may control the occurrence and distribution of gas hydrate in other sedimentary settings. Abstract Copyright (2014) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Rose, Kelly K AU - Johnson, Joel E AU - Torres, Marta E AU - Hong, Wei-Li AU - Giosan, Liviu AU - Solomon, Evan A AU - Kastner, Miriam AU - Cawthern, Thomas AU - Long, Philip E AU - Todd Schaef, H Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 99 EP - 116 PB - Elsevier, Oxford VL - 58 IS - Part A SN - 0264-8172, 0264-8172 KW - calcium KW - petroleum exploration KW - lithostratigraphy KW - magnesium KW - gas hydrates KW - offshore KW - natural gas KW - Andaman Sea KW - aliphatic hydrocarbons KW - petroleum KW - Indian National Gas Hydrate Program KW - cores KW - size distribution KW - marine sediments KW - infrared methods KW - Indian Ocean KW - silica KW - sediments KW - geochemistry KW - alkaline earth metals KW - methane KW - grain size KW - geophysical methods KW - electron microscopy data KW - alkanes KW - hydrochemistry KW - porosity KW - physical properties KW - organic compounds KW - boreholes KW - metals KW - hydrocarbons KW - accretionary wedges KW - carbonates KW - SEM data KW - pore water KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615684?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Anomalous+porosity+preservation+and+preferential+accumulation+of+gas+hydrate+in+the+Andaman+accretionary+wedge%2C+NGHP-01+Site+17A&rft.au=Rose%2C+Kelly+K%3BJohnson%2C+Joel+E%3BTorres%2C+Marta+E%3BHong%2C+Wei-Li%3BGiosan%2C+Liviu%3BSolomon%2C+Evan+A%3BKastner%2C+Miriam%3BCawthern%2C+Thomas%3BLong%2C+Philip+E%3BTodd+Schaef%2C+H&rft.aulast=Rose&rft.aufirst=Kelly&rft.date=2014-12-01&rft.volume=58&rft.issue=Part+A&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2014.04.009 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 78 N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - accretionary wedges; aliphatic hydrocarbons; alkaline earth metals; alkanes; Andaman Sea; boreholes; calcium; carbonates; cores; electron microscopy data; gas hydrates; geochemistry; geophysical methods; grain size; hydrocarbons; hydrochemistry; Indian National Gas Hydrate Program; Indian Ocean; infrared methods; lithostratigraphy; magnesium; marine sediments; metals; methane; natural gas; offshore; organic compounds; permeability; petroleum; petroleum exploration; physical properties; pore water; porosity; sediments; SEM data; silica; size distribution DO - http://dx.doi.org/10.1016/j.marpetgeo.2014.04.009 ER - TY - JOUR T1 - Permeability evolution of fractured limestone due to reactive flow; observation and prediction of wormhole formation AN - 1765876552; 2016-011752 AB - Fractures in porous media provide preferential pathways for flow and solute transport. Their hydraulic properties are critical parameters for determining fluid migration and leakage, and are subject to alterations when exposed to reactive flow, e.g. CO2-acidified brine in the case of carbon storage. Our previous studies have shown how mineral heterogeneity could lead to increased roughness that mitigates the increase in fracture permeability. This study shows that, even in rocks with mineral homogeneity, fracture geometry is subject to complex alterations. In this presentation, we report an experimental study of CO2-acidified brine in fractured Indiana Limestone, with comprehensive characterization of effluent chemistry analyzed by ICP-OES, and 3D geometry evolution using micro-computed topography (xCT). Significant carbonate dissolution was observed but the reaction extent revealed by the effluent chemistry was less than what was predicted by simple reaction transport models. xCT imaging revealed the formation of wormhole channels in the fracture, and the channels grew larger downstream and more prominent over time. Using the fracture geometries derived from the xCT images, we simulated the flow field and inferred the evolution of fracture hydraulic properties. To interpret the process of wormholing and its impacts on fracture hydraulic properties, we used reactive transport modeling to simulate the interplay between fracture geometry, fluid flow and geochemical reactions. Our simulations predicted that wormholes were formed in fractures with initial roughness representative of natural subsurface systems. The presence of wormholes caused a disproportionately larger permeability increase than would be expected given the extent of volume change. JF - American Geophysical Union Fall Meeting AU - Deng, Hang AU - Fitts, J P AU - Crandall, D AU - McIntyre, Dustin AU - Peters, C A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H51B EP - 0601 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765876552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Permeability+evolution+of+fractured+limestone+due+to+reactive+flow%3B+observation+and+prediction+of+wormhole+formation&rft.au=Deng%2C+Hang%3BFitts%2C+J+P%3BCrandall%2C+D%3BMcIntyre%2C+Dustin%3BPeters%2C+C+A%3BAnonymous&rft.aulast=Deng&rft.aufirst=Hang&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evolving spatial heterogeneity induced by preferential carbonate dissolution in fractured media AN - 1761073211; 2016-008573 AB - Spatial heterogeneity plays a key role in determining physical and geochemical processes in geological systems. In reactive fractures, mineral reactions also can alter fracture properties locally, therefore leading to evolving spatial heterogeneity. Here we use two-dimensional (2D) reactive transport modeling to 1) understand the evolving spatial heterogeneity due to the preferential dissolution of carbonate and 2) quantify the dependence of calcite dissolution on characteristics of spatial heterogeneity, including fracture roughness (i.e., aperture standard derivation, surface parameter and fractal dimension), flow connectivity (i.e., ratio of effective permeability k (sub eff) over geometric mean of local permeability k (sub G) ), and transport connectivity indicators (e.g., ratio of late 5% arrival time t (sub late5%) over average arrival time t (sub ave) ). The fractured core samples from Brady's Hot Springs geothermal field are composed of primarily carbonate, clay, and quartz. The computational domains were set up using fracture images obtained from CT scanning at the resolution of 31.6 mu m. The two samples have similar initial average aperture, porosity, permeability, and mineralogical composition. They differ in the spatial patterns: one has narrow large-aperture zones distributed widely (AD sample); the other has a major large-aperture zone in the middle of the sample (AC sample). Simulation results show that highly connected flow path forms quickly in the AD sample, leading to an increase of average chemical aperture, effective permeability, and flow velocity by five times after 75 days of injecting salt water. In contrast, these properties remain constant in the AC sample. Other parameters that quantitatively characterize the spatial heterogeneity, including connectivity and the tail slope of the breakthrough curves, also change dramatically, indicating major alteration in fracture properties due to calcite dissolution. JF - American Geophysical Union Fall Meeting AU - Wen, H AU - Li, Li AU - Crandall, Dustin AU - Hakala, Alexandra AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H53D EP - 0882 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761073211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evolving+spatial+heterogeneity+induced+by+preferential+carbonate+dissolution+in+fractured+media&rft.au=Wen%2C+H%3BLi%2C+Li%3BCrandall%2C+Dustin%3BHakala%2C+Alexandra%3BAnonymous&rft.aulast=Wen&rft.aufirst=H&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-01-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - Experimental approach to elucidating damage mechanisms in cement-well casting-host rock settings for underground storage of CO (sub 2) AN - 1752578929; 2016-001357 AB - During CO (sub 2) sequestration, wellbore cement could be vulnerable to high temperature and high pressure in underground storage settings. Wellbore alteration has been observed under supercritical CO (sub 2) exposure condition in previous experimental and field studies. One such study also showed that a reduction in both tensile and compressive strength when specimens were exposed to CO2-O (sub 2) gases at 50 degrees C and 85 degrees C as compared to specimens only exposed to CO (sub 2) gases; secondary mineral precipitation (SMP) and high temperature was speculated as the causes. In this study, experiments were designed to justify how different variables influenced SMP, and to quantify its effect on mechanical properties of Class H Portland cement. Chemical and mechanical alterations of Class H cement were investigated to verify the impact of SMP during this process. Cement prisms were investigated under different scenarios including influence of brine composition (simulated Mt. Simon basin), high temperature (up to 85 degrees C); high pressure (up to 4200 psi); CO (sub 2) sequestration; CO (sub 2) -O (sub 2) co-sequestration. Modulus of rupture and compressive strength of the cement prisms were tested under each scenario and several exposure durations. Initial results indicated that high temperature and synthetic brine composition had a negative influence on compressive strength. Pore solution analysis was conducted to examine the ionic exchange and geochemical alteration between the cement and brine. Specimens decreased in sodium and potassium, significantly increased in calcium, and slightly increased in sulfate after CO (sub 2) injected into system. Scanning electronic microscopy visually identified SMP and the alteration depth of specimens exposed to CO (sub 2) gas and CO (sub 2) -O (sub 2) gases with time of exposure, respectively. The predicted degree of SMP, change of pore solution, and mechanic strength based on temperature, pressure, brine composition, and gas exposure conditions will be presented. JF - American Geophysical Union Fall Meeting AU - Li, C AU - Jafari Azad, V AU - Rodriguez, D AU - Ideker, Jason AU - Isgor, Burkan AU - Verba, Circe AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H23O EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752578929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+approach+to+elucidating+damage+mechanisms+in+cement-well+casting-host+rock+settings+for+underground+storage+of+CO+%28sub+2%29&rft.au=Li%2C+C%3BJafari+Azad%2C+V%3BRodriguez%2C+D%3BIdeker%2C+Jason%3BIsgor%2C+Burkan%3BVerba%2C+Circe%3BAnonymous&rft.aulast=Li&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Image analysis of proppant performance in pressurized fractures AN - 1739085593; 2015-114299 AB - Proppants are small particles used to prop or hold open subsurface fractures to permit fluid flow through these pathways. In many oil and gas well applications, the most common proppant materials are sand, ceramic particles, resin-coated sands, glass beads or even walnut shells. More dense proppants require additives to create viscous fluids which can transport them further along wells and into fractures, but are generally preferred over neutrally buoyant options due to their increased strength. Currently, proppant strength and generation of broken fragments ("fines") is analyzed via a standardized crush test between parallel plates. To augment this type of information, we present here the results of various experiments involving resin-coated proppants held at increasing pressures in fractured samples of Marcellus shale. The shale/proppant samples were imaged continuously with an industrial tomography scanner during pressurization up to 10,000 psi. This technique allows for in situ characterization of fracture/proppant interactions and fracture void volume and average aperture with varying confining pressures. JF - American Geophysical Union Fall Meeting AU - Crandall, Dustin AU - Smith, Megan M AU - Carroll, S AU - Walsh, S D AU - Gill, Magdalena AU - Moore, Johnathan AU - Tennant, Bryan AU - Aines, Roger D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H11H EP - 0991 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739085593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Image+analysis+of+proppant+performance+in+pressurized+fractures&rft.au=Crandall%2C+Dustin%3BSmith%2C+Megan+M%3BCarroll%2C+S%3BWalsh%2C+S+D%3BGill%2C+Magdalena%3BMoore%2C+Johnathan%3BTennant%2C+Bryan%3BAines%2C+Roger+D%3BAnonymous&rft.aulast=Crandall&rft.aufirst=Dustin&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geochemical effects of CO (sub 2) injection on produced water chemistry at an enhanced oil recovery site in the Permian Basin of northwest Texas, USA; preliminary geochemical and Li isotope results AN - 1739082286; 2015-117052 AB - Injection of supercritical CO2 for enhanced oil recovery (EOR) presents an opportunity to evaluate the effects of CO2 on reservoir properties and formation waters during geologic carbon sequestration. Produced water from oil wells tapping a carbonate-hosted reservoir at an active EOR site in the Permian Basin of Texas both before and after injection were sampled to evaluate geochemical and isotopic changes associated with water-rock-CO2 interaction. Produced waters from the carbonate reservoir rock are Na-Cl brines with TDS levels of 16.5-34 g/L and detectable H2S. These brines are potentially diluted with shallow groundwater from earlier EOR water flooding. Initial lithium isotope data (delta 7Li) from pre-injection produced water in the EOR field fall within the range of Gulf of Mexico Coastal sedimentary basin and Appalachian basin values (Macpherson et al., 2014, Geofluids, doi: 10.1111/gfl.12084). Pre-injection produced water 87Sr/86Sr ratios (0.70788-0.70795) are consistent with mid-late Permian seawater/carbonate. CO2 injection took place in October 2013, and four of the wells sampled in May 2014 showed CO2 breakthrough. Preliminary comparison of pre- and post-injection produced waters indicates no significant changes in the major inorganic constituents following breakthrough, other than a possible drop in K concentration. Trace element and isotope data from pre- and post-breakthrough wells are currently being evaluated and will be presented. JF - American Geophysical Union Fall Meeting AU - Pfister, S AU - Gardiner, J AU - Phan, T T AU - Macpherson, G L AU - Diehl, J R AU - Lopano, C L AU - Stewart, B W AU - Capo, R C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H21A EP - 0723 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739082286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Geochemical+effects+of+CO+%28sub+2%29+injection+on+produced+water+chemistry+at+an+enhanced+oil+recovery+site+in+the+Permian+Basin+of+northwest+Texas%2C+USA%3B+preliminary+geochemical+and+Li+isotope+results&rft.au=Pfister%2C+S%3BGardiner%2C+J%3BPhan%2C+T+T%3BMacpherson%2C+G+L%3BDiehl%2C+J+R%3BLopano%2C+C+L%3BStewart%2C+B+W%3BCapo%2C+R+C%3BAnonymous&rft.aulast=Pfister&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Experimental evaluation of the change in fracture geometry and permeability due to shearing AN - 1739082200; 2015-116935 AB - Fractures often provide the preferential flow paths through geologic media. As such, an understanding of what influences fracture permeability is critically important to describing sub-surface flows. Numerous studies have been reported which illustrate the importance of rock fracture geometry on the permeability of fractures, in particular the influence of zero aperture locations within the fracture aperture. increasing the tortuosity of flow through a fracture and subsequently decreasing the fracture permeability. Fractures and faults can shear due to increased transverse stresses, or an increase of fluid pressure within a fracture reducing the effective forces stopping fracture slippage. This behavior has been widely observed in many seismic events. How small scale shearing events influence the permeability of fracture is not well known though, as few experimental tests have been performed that enable the dynamic change in a fractured rock position while simultaneously measuring the permeability across the fracture. This talk describes resent research at the National Energy Technology Laboratory in Morgantown, West Virginia where fractured rock cores have been experimentally sheared and the permeability through the fracture has been measured. In addition, these fractured cores were imaged with computed tomography scanning to understand what geometric alterations to the fracture structure influence the shearing induced changes to fracture permeability. Both shale and sandstone fractured cores have been evaluated with this unique core flow apparatus, and relationships between the shearing distance, rock type, and initial fracture geometry are being developed to provide guidance on understanding and modeling sheared fracture permeability changes in CO2 sequestration and other sub-surface activities. JF - American Geophysical Union Fall Meeting AU - Crandall, D AU - Gill, M AU - Moore, J AU - Tennant, B AU - Bromhal, G S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H12B EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739082200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+evaluation+of+the+change+in+fracture+geometry+and+permeability+due+to+shearing&rft.au=Crandall%2C+D%3BGill%2C+M%3BMoore%2C+J%3BTennant%2C+B%3BBromhal%2C+G+S%3BAnonymous&rft.aulast=Crandall&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Hydraulic aperture reduction of shale fractures due to mechanical stressing, with characterization of physical fracture evolution using comuted tomography AN - 1739081834; 2015-116997 AB - Flow in fractured shale is a topic of interest for both production from non-traditional fractured shale reservoirs and for estimating the leakage potential of sealing formations above geologic carbon dioxide repositories. The hydraulic aperture of a fracture quantifies how much fluid can be transported through a fracture, similarly to how permeability describes fluid flow through porous media. The advantage of defining the fracture hydraulic aperture as opposed to permeability, is that this property can be easily scaled up to fracture reservoir simulators. Many parameters affect the hydraulic aperture, however, including the fracture roughness, the physical aperture distribution, and the tortuosity of flow paths within the fracture.The computed tomography (CT) and flow facility at NETL has conducted an analysis of the changes in both physical and hydraulic aperture as fractures were subjected to varying external confining stresses. Changes in fracture geometry were tracked through the use of non-destructive CT imaging, allowing the determination of the physical aperture distribution, while hydraulic fracture apertures were derived from experimental fracture flow measurements. In order to evaluate the effects of fracture roughness and geometry, two fractures with different degrees of roughness were used. Tests were conducted with locally sourced shale. Experimental results show that the volume change in the fracture is a non-linear function of the confining pressure, and both physical and hydraulic apertures decrease rapidly as the fracture is first compressed. JF - American Geophysical Union Fall Meeting AU - Crandall, D AU - Gill, M AU - Moore, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H13Q EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739081834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hydraulic+aperture+reduction+of+shale+fractures+due+to+mechanical+stressing%2C+with+characterization+of+physical+fracture+evolution+using+comuted+tomography&rft.au=Crandall%2C+D%3BGill%2C+M%3BMoore%2C+J%3BAnonymous&rft.aulast=Crandall&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - A new critical state model for geomechanical behavior of methane hydrate-bearing sands AN - 1718053546; 2015-092435 AB - Methane hydrate bearing sands behave like sands once the hydrate has dissociated, but could exhibit a substantial increase in the shear strength, stiffness and dilatancy as the degree of hydrate saturation increases. A new critical state model was developed that incorporates the spatially mobilized plane (SMP) concept, which has been proven effective in modeling mechanical behavior of sands. While this new model was built on the basic constructs of the critical state model, important enhancements were introduced. The model adopted the t-stress concept, which defined the normal and shear stress on the SMP, in describing the plastic behavior of the soil. In this connection the versatile Matsuoka-Nakai yield criterion was also employed, which defined the general three dimensional yield behavior. The resulting constitutive law was associated in the t-stress space, but became non-associated in the conventional p-q stress space as it should be for sands. The model also introduced a generalized degree of hydrate saturation concept that was modified from the pioneering work of the Cambridge group. The model gives stress change when the sands are subjected to straining, and/or to hydrate saturation changes. The performance of the model has been found satisfactory using data from laboratory triaxial tests on reconstituted samples and core samples taken from Nankai Trough, Japan. The model has been implemented into FLAC3D. A coupling example with the multiphase flow code, TOUGH+, is presented which simulates the mechanical behavior of a sample when the surrounding temperature has been raised, and the hydrate undergoes state change and no longer resides in the stability zone. JF - American Geophysical Union Fall Meeting AU - Lin, J S AU - Xing, P AU - Rutqvist, J AU - Seol, Yongkoo AU - Choi, J H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11B EP - 0012 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+critical+state+model+for+geomechanical+behavior+of+methane+hydrate-bearing+sands&rft.au=Lin%2C+J+S%3BXing%2C+P%3BRutqvist%2C+J%3BSeol%2C+Yongkoo%3BChoi%2C+J+H%3BAnonymous&rft.aulast=Lin&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Investigating rare earth element systematics in the Marcellus Shale AN - 1718053540; 2015-092459 AB - The lanthanide series of elements (the 14 rare earth elements, REEs) have similar chemical properties and respond to different chemical and physical processes in the natural environment by developing unique patterns in their concentration distribution when normalized to an average shale REE content. The interpretation of the REE content in a gas-bearing black shale deposited in a marine environment must therefore take into account the paleoredox conditions of deposition as well as any diagenetic remobilization and authigenic mineral formation. We analyzed 15 samples from a core of the Marcellus Shale (Whipkey ST1, Greene Co., PA) for REEs, TOC, gas-producing potential, trace metal content, and carbon isotopes of organic matter in order to determine the REE systematics of a black shale currently undergoing shale gas development. We also conducted a series of sequential leaching experiments targeting the phosphatic fractions in order to evaluate the dominant host phase of REEs in a black shale. Knowledge of the REE system in the Marcellus black shale will allow us to evaluate potential REE release and behavior during hydraulic fracturing operations. Total REE content of the Whipkey ST1 core ranged from 65-185 mu g/g and we observed three distinct REE shale-normalized patterns: middle-REE enrichment (MREE/MREE* nearly equal 2) with heavy-REE enrichment (HREE/LREE approximately 1.8-2), flat patterns, and a linear enrichment towards the heavy-REE (HREE/LREE approximately 1.5-2.5). The MREE enrichment occurred in the high carbonate samples of the Stafford Member overlying the Marcellus Formation. The HREE enrichment occurred in the Union Springs Member of the Marcellus Formation, corresponding to a high TOC peak (TOC approximately 4.6-6.2 wt%) and moderate carbonate levels (CaCO3 approximately 4-53 wt%). Results from the sequential leaching experiments suggest that the dominant host of the REEs is the organic fraction of the black shale and that the detrital and authigenic fractions have characteristic MREE enrichments. We present our conclusions on the impact of depositional setting and diagenetic remobilization and authigenic mineral formation on the REE system in the Marcellus Shale. JF - American Geophysical Union Fall Meeting AU - Yang, J AU - Torres, M E AU - Kim, J H AU - Verba, Circe AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11C EP - 0036 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigating+rare+earth+element+systematics+in+the+Marcellus+Shale&rft.au=Yang%2C+J%3BTorres%2C+M+E%3BKim%2C+J+H%3BVerba%2C+Circe%3BAnonymous&rft.aulast=Yang&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Assessing microbial activity in Marcellus Shale hydraulic fracturing fluids AN - 1718053536; 2015-092455 AB - Hydraulic fracturing (HF) produces millions of gallons of waste fluid which contains a microbial community adapted to harsh conditions such as high temperatures, high salinities and the presence of heavy metals and radionuclides. Here we present evidence for microbial activity in HF production fluids. Fluids collected from a Marcellus shale HF well were supplemented with 13C-labeled carbon sources and 15N-labeled ammonium at 25 degrees C under aerobic or anaerobic conditions. Samples were analyzed for 13C and 15N incorporation at sub-micrometer scale by ion imaging with the JAMSTEC NanoSIMS to determine percent carbon and nitrogen assimilation in individual cells. Headspace CO2 and CH4 were analyzed for 13C enrichment using irm-GC/MS. At 32 days incubation carbon assimilation was observed in samples containing 1 mM 13C-labeled glucose under aerobic and anaerobic conditions with a maximum of 10.4 and 6.5% total carbon, respectively. Nitrogen assimilation of 15N ammonium observed in these samples were 0.3 and 0.8% of total nitrogen, respectively. Head space gas analysis showed 13C enrichment in CH4 in anaerobic samples incubated with 1 mM 13C-labeled bicarbonate (2227 ppm) or methanol (98943 ppm). Lesser 13C enrichment of CO2 was observed in anaerobic samples containing 1 mM 13C-labeled acetate (13.7 ppm), methanol (29.9 ppm) or glucose (85.4 ppm). These results indicate metabolic activity and diversity in microbial communities present in HF flowback fluids. The assimilation of 13C-labeled glucose demonstrates the production of biomass, a critical part of cell replication. The production of 13CO2 and 13CH4 demonstrate microbial metabolism in the forms of respiration and methanogenesis, respectively. Methanogenesis additionally indicates the presence of an active archaeal community. This research shows that HF production fluid chemistry does not entirely inhibit microbial activity or growth and encourages further research regarding biogeochemical processes occurring in Marcellus shale HF wells. Biogeochemical activity may impact the efficacy of HF and natural gas production as well as the chemistry of produced fluids which have become an environmental and public health concern. JF - American Geophysical Union Fall Meeting AU - Wishart, Jessie R AU - Morono, Y AU - Itoh, Motoo AU - Ijiri, A AU - Hoshino, T AU - Inagaki, F AU - Verba, Circe AU - Torres, M E AU - Colwell, F S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11C EP - 0032 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessing+microbial+activity+in+Marcellus+Shale+hydraulic+fracturing+fluids&rft.au=Wishart%2C+Jessie+R%3BMorono%2C+Y%3BItoh%2C+Motoo%3BIjiri%2C+A%3BHoshino%2C+T%3BInagaki%2C+F%3BVerba%2C+Circe%3BTorres%2C+M+E%3BColwell%2C+F+S%3BAnonymous&rft.aulast=Wishart&rft.aufirst=Jessie&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Water retention curve and relative permeability for gas production from hydrate-bearing sediments AN - 1718053455; 2015-092442 AB - Water retention curve (soil water characteristic curve SWCC) and relative permeability equations are important to determine gas and water production for gas hydrate development. However, experimental studies to determine fitting parameters of those equations are not available in the literature. The objective of this research is to obtain reliable parameters for capillary pressure functions and relative permeability equations applicable to hydrate dissociation and gas production. In order to achieve this goal, (1) micro X-ray Computer Tomography (CT) is used to scan the specimen under 10 MPa effective stress, (2) a pore network model is extracted from the CT image, (3) hydrate dissociation and gas expansion are simulated in the pore network model, (4) the parameters for the van Genuchten-type soil water characteristic curve and relative permeability equation during gas expansion are suggested. The research outcome will enhance the ability of numerical simulators to predict gas and water production rate. JF - American Geophysical Union Fall Meeting AU - Mahabadi, N AU - Dai, Shengdai AU - Seol, Yongkoo AU - Jang, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11B EP - 0019 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Water+retention+curve+and+relative+permeability+for+gas+production+from+hydrate-bearing+sediments&rft.au=Mahabadi%2C+N%3BDai%2C+Shengdai%3BSeol%2C+Yongkoo%3BJang%2C+J%3BAnonymous&rft.aulast=Mahabadi&rft.aufirst=N&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Instrumented pressure testing chamber (IPTC) characterization of methane gas hydrate-bearing pressure cores collected from the methane production test site in the eastern Nankai Trough, offshore Japan AN - 1718052277; 2015-092437 AB - Pressure cores obtained at the Daini-Atsumi Knoll in the eastern Nankai Trough, the site of the methane hydrate production test completed by the Methane Hydrate Resources in Japan (MH21) project in March 2013, were recovered from approximately 300 meters beneath the sea floor at close to in situ pressure. Cores were subsequently stored at approximately 20 MPa and approximately 5 degrees C, which maintained hydrate in the cores within stability conditions. Pressure core physical properties were measured at 10 MPa and approximately 6 degrees C, also within the methane hydrate stability field, using the IPTC and other Pressure Core Characterization Tools (PCCTs). Discrete IPTC measurements were carried out in strata ranging from silty sands to clayey silts within the turbidite sequences recovered in the cores. As expected, hydrate saturations were greatest in more permeable coarser-grained layers. Key results include: 1) Where hydrate saturation exceeded 40% in sandy sediments, the gas hydrate binds sediment grains within the matrix. The pressure core analyses yielded nearly in situ mechanical properties despite the absence of effective stress in the IPTC. 2) In adjacent fine-grained sediment (hydrate saturation <15%), hydrate did not significantly bind the sediment. IPTC results in these locations were consistent with the zero effective-stress limit of comparable measurements made in PCCT devices that are designed to restore the specimen's in situ effective stress. In sand-rich intervals with high gas hydrate saturations, the measured compressional and shear wave velocities suggest that hydrate acts as a homogeneously-distributed, load-bearing member of the bulk sediment. The sands with high gas hydrate saturations were prone to fracturing (brittle failure) during insertion of the cone penetrometer and electrical conductivity probes. Authors would like to express their sincere appreciation to MH21 and the Ministry of Economy, Trade and Industry for permitting this work to be disclosed at the 2014 Fall AGU meeting. JF - American Geophysical Union Fall Meeting AU - Waite, W F AU - Santamarina, J C AU - Dai, Shengdai AU - Winters, W J AU - Yoneda, Jun AU - Konno, Yoshihiro AU - Nagao, Jiro AU - Suzuki, Kiyofumi AU - Fujii, Tetsuya AU - Mason, D H AU - Bergeron, E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11B EP - 0014 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718052277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Instrumented+pressure+testing+chamber+%28IPTC%29+characterization+of+methane+gas+hydrate-bearing+pressure+cores+collected+from+the+methane+production+test+site+in+the+eastern+Nankai+Trough%2C+offshore+Japan&rft.au=Waite%2C+W+F%3BSantamarina%2C+J+C%3BDai%2C+Shengdai%3BWinters%2C+W+J%3BYoneda%2C+Jun%3BKonno%2C+Yoshihiro%3BNagao%2C+Jiro%3BSuzuki%2C+Kiyofumi%3BFujii%2C+Tetsuya%3BMason%2C+D+H%3BBergeron%2C+E%3BAnonymous&rft.aulast=Waite&rft.aufirst=W&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Strontium isotopes as tracers for contamination from potential Marcellus Shale waters AN - 1718052037; 2015-092458 AB - Mineralogical and geochemical conditions vary significantly in natural water systems, including groundwater aquifers and rivers. In addition, contamination events are often elusive. As a result, it is often challenging to pinpoint the contamination of natural waters by specific types of water sources. The strontium isotope ratio R87Sr, defined as 87Sr/86Sr, has shown promise in discerning contamination from different types of wastewaters related to Marcellus Shale development. The R87Sr of potential end members, including Marcellus shale produced water (0.710-0.712) and Upper Devonian/Lower Mississippian formation brine (0.720-0.721), have been shown to be distinct from those in natural waters. Here we use reactive transport modeling (CrunchFlow) to understand key process and factors that govern the evolution of R87Sr, and the conditions under which we can discern contamination sources in natural water systems. Simulation results show that ion exchange reaction plays an important role in the evolution of R87Sr while release rate has a relatively minor impact on R87Sr evolution. Even with large dilution factor where the volumetric flow rate of natural waters is orders of magnitude higher than the release rates of contamination source water, the R87Sr is still sensitive to different types of source contamination waters. Insights gained here suggest that strontium isotopes can potentially be used as a tracers for different type of water contamination. The modeling tool developed can offer a powerful tool for understanding, predicting, monitoring of natural water contamination. JF - American Geophysical Union Fall Meeting AU - Cai, Z AU - Li, Li AU - Hakala, Alexandra AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11C EP - 0035 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718052037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Strontium+isotopes+as+tracers+for+contamination+from+potential+Marcellus+Shale+waters&rft.au=Cai%2C+Z%3BLi%2C+Li%3BHakala%2C+Alexandra%3BAnonymous&rft.aulast=Cai&rft.aufirst=Z&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Impacts of hydrate pore habit on physical properties of hydrate bearing sediments AN - 1718051306; 2015-092434 AB - The physical properties of gas hydrate bearing sediments, to a large extent, are governed by the volume fraction and spatial distribution of the hydrate phase. For sediments containing the same amount of hydrates, their overall physical properties may vary several orders of magnitude depending on hydrate pore habit. We investigate the interplay among hydrate formation methods, hydrate pore habits, and fundamental physical properties of hydrate bearing sediments. We have developed a new method to synthesize noncementing hydrate in sands, a multi-properties characterization chamber to test the hydrate bearing sediments, and pore network models to simulate fluid flow processes in hydrate bearing sediments. We have found that (1) the growth pattern of hydrate crystal in the pore spaces of water saturated sediments is dominated by the relative magnitude of the capillary force (between hydrate crystal and pore fluid) and the skeleton force, which will result in pore-filling or grain-displacing type of hydrate pore character; (2) the existing capillary tube models of water permeability in hydrate bearing sediments are sensitive to pore geometry and hydrate pore habit; and (3) preliminary CT results suggest that hydrate nucleation in partially water saturated sands tends to agglomerate in patches, rather than in an uniformly-distributed contact-cementing morphology. Additional CT results with a small amount of fines (5 wt%) and visualization via micro-CT of hydrate pore habits in sediments using different hydrate formation methods will be discussed. JF - American Geophysical Union Fall Meeting AU - Seol, Yongkoo AU - Dai, Shengdai AU - Choi, J H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B11B EP - 0011 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718051306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impacts+of+hydrate+pore+habit+on+physical+properties+of+hydrate+bearing+sediments&rft.au=Seol%2C+Yongkoo%3BDai%2C+Shengdai%3BChoi%2C+J+H%3BAnonymous&rft.aulast=Seol&rft.aufirst=Yongkoo&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - CPAPER T1 - New Diffusive Intermediates Under Polar Condition for CO2 Adsorption in Silica-Supported Amine Sorbents T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627973988; 6311983 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Li, Kuijun AU - Mebane, David Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - amines KW - Sorbents KW - Adsorption KW - Carbon dioxide KW - Amines UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627973988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=New+Diffusive+Intermediates+Under+Polar+Condition+for+CO2+Adsorption+in+Silica-Supported+Amine+Sorbents&rft.au=Li%2C+Kuijun%3BMebane%2C+David&rft.aulast=Li&rft.aufirst=Kuijun&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Brief Review of Catalytic Oxidative Coupling of Methane to Ethane and Ethene T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627965754; 6309238 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Granite, Evan Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Methane KW - ethene KW - Reviews KW - Ethane KW - Ethene UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627965754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Brief+Review+of+Catalytic+Oxidative+Coupling+of+Methane+to+Ethane+and+Ethene&rft.au=Anonymous&rft.aulast=Anonymous&rft.aufirst=&rft.date=2011-12-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Effects of Contaminants to Physical Solvents for Pre-Combustion CO2 Capture T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627965555; 6310174 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Shi, Fan AU - Kail, Brian AU - Nulwala, Hunaid AU - Siefert, Nicholas AU - Luebke, David Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Solvents KW - Contaminants KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627965555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Effects+of+Contaminants+to+Physical+Solvents+for+Pre-Combustion+CO2+Capture&rft.au=Shi%2C+Fan%3BKail%2C+Brian%3BNulwala%2C+Hunaid%3BSiefert%2C+Nicholas%3BLuebke%2C+David&rft.aulast=Shi&rft.aufirst=Fan&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - CFD Model Validation of a Small Scale Carbon Capture Unit T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627965259; 6309707 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Syamlal, Madhava Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Carbon KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627965259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=CFD+Model+Validation+of+a+Small+Scale+Carbon+Capture+Unit&rft.au=Syamlal%2C+Madhava&rft.aulast=Syamlal&rft.aufirst=Madhava&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Stabilization of ZnO in ZSM-5 for Methane Dehydroaromatization T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627965203; 6309240 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Lai, Yungchieh AU - Veser, Gotz Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Methane KW - Zinc KW - Stabilizing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627965203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Stabilization+of+ZnO+in+ZSM-5+for+Methane+Dehydroaromatization&rft.au=Lai%2C+Yungchieh%3BVeser%2C+Gotz&rft.aulast=Lai&rft.aufirst=Yungchieh&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Development of High-Pressure High-Temperature Crude Oil Equation of State T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627964714; 6309706 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Gamwo, Isaac Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Mathematical models KW - Crude oil KW - Equations of state UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627964714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Development+of+High-Pressure+High-Temperature+Crude+Oil+Equation+of+State&rft.au=Gamwo%2C+Isaac&rft.aulast=Gamwo&rft.aufirst=Isaac&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Development of Solids Flow Sensor Technology for Chemical Looping T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627963947; 6311323 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Chorpening, Benajmin AU - Greve, David AU - Charley, Jared AU - Weber, Justin AU - Straub, Douglas Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Sensors KW - Flowmeters KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627963947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Development+of+Solids+Flow+Sensor+Technology+for+Chemical+Looping&rft.au=Chorpening%2C+Benajmin%3BGreve%2C+David%3BCharley%2C+Jared%3BWeber%2C+Justin%3BStraub%2C+Douglas&rft.aulast=Chorpening&rft.aufirst=Benajmin&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Overview of the U.S. DOE Fossil Energy Advanced Energy Systems Program T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627963888; 6309660 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Dennis, Richard AU - Ciferno, Jared Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Fossils KW - Reviews KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627963888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Overview+of+the+U.S.+DOE+Fossil+Energy+Advanced+Energy+Systems+Program&rft.au=Dennis%2C+Richard%3BCiferno%2C+Jared&rft.aulast=Dennis&rft.aufirst=Richard&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Simulations of CO2+N2 Exchange in CH4 Hydrate Reservoirs T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627963866; 6311575 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Sridhara, Prathyusha AU - Anderson, Brian Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Methane KW - Simulation KW - Hydrates KW - Reservoirs UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627963866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Simulations+of+CO2%2BN2+Exchange+in+CH4+Hydrate+Reservoirs&rft.au=Sridhara%2C+Prathyusha%3BAnderson%2C+Brian&rft.aulast=Sridhara&rft.aufirst=Prathyusha&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Designing Conformance Control Foams for a Field Test with CO2 Soluble and Brine Soluble Surfactants T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627962134; 6308609 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Baled, Hseen Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Foams KW - Carbon dioxide KW - Surfactants KW - Brines UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627962134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Designing+Conformance+Control+Foams+for+a+Field+Test+with+CO2+Soluble+and+Brine+Soluble+Surfactants&rft.au=Baled%2C+Hseen&rft.aulast=Baled&rft.aufirst=Hseen&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - The Impact of Rd&d on Market Opportunities for Power Plants with Carbon Capture T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627959495; 6308486 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Zelek, Charles Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Carbon KW - Power plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627959495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=The+Impact+of+Rd%26amp%3Bd+on+Market+Opportunities+for+Power+Plants+with+Carbon+Capture&rft.au=Zelek%2C+Charles&rft.aulast=Zelek&rft.aufirst=Charles&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - JOUR T1 - Dynamic morphology of gas hydrate on a methane bubble in water; observations and new insights for hydrate film models AN - 1629947488; 2014-097293 AB - Predicting the fate of subsea hydrocarbon gases escaping into seawater is complicated by potential formation of hydrate on rising bubbles that can enhance their survival in the water column, allowing gas to reach shallower depths and the atmosphere. The precise nature and influence of hydrate coatings on bubble hydrodynamics and dissolution is largely unknown. Here we present high-definition, experimental observations of complex surficial mechanisms governing methane bubble hydrate formation and dissociation during transit of a simulated oceanic water column that reveal a temporal progression of deep-sea controlling mechanisms. Synergistic feedbacks between bubble hydrodynamics, hydrate morphology, and coverage characteristics were discovered. Morphological changes on the bubble surface appear analogous to macroscale, sea ice processes, presenting new mechanistic insights. An inverse linear relationship between hydrate coverage and bubble dissolution rate is indicated. Understanding and incorporating these phenomena into bubble and bubble plume models will be necessary to accurately predict global greenhouse gas budgets for warming ocean scenarios and hydrocarbon transport from anthropogenic or natural deep-sea eruptions. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Warzinski, Robert P AU - Lynn, Ronald AU - Haljasmaa, Igor AU - Leifer, Ira AU - Shaffer, Frank AU - Anderson, Brian J AU - Levine, Jonathan S Y1 - 2014/10/16/ PY - 2014 DA - 2014 Oct 16 SP - 6841 EP - 6847 PB - American Geophysical Union, Washington, DC VL - 41 IS - 19 SN - 0094-8276, 0094-8276 KW - water KW - sea water KW - methane KW - gas hydrates KW - aliphatic hydrocarbons KW - crystal structure KW - deep-sea environment KW - alkanes KW - models KW - organic compounds KW - marine environment KW - hydrocarbons KW - hydrodynamics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629947488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Dynamic+morphology+of+gas+hydrate+on+a+methane+bubble+in+water%3B+observations+and+new+insights+for+hydrate+film+models&rft.au=Warzinski%2C+Robert+P%3BLynn%2C+Ronald%3BHaljasmaa%2C+Igor%3BLeifer%2C+Ira%3BShaffer%2C+Frank%3BAnderson%2C+Brian+J%3BLevine%2C+Jonathan+S&rft.aulast=Warzinski&rft.aufirst=Robert&rft.date=2014-10-16&rft.volume=41&rft.issue=19&rft.spage=6841&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061665 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-12-04 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; crystal structure; deep-sea environment; gas hydrates; hydrocarbons; hydrodynamics; marine environment; methane; models; organic compounds; sea water; water DO - http://dx.doi.org/10.1002/2014GL061665 ER - TY - JOUR T1 - NETL develops advanced CO (sub 2) foam reservoir simulator AN - 1664437192; 2015-026086 JF - World Oil AU - Jikich, Sinisha A Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 103 EP - 106 PB - Gulf Publishing Company, Houston, TX VL - 235 IS - 10 SN - 0043-8790, 0043-8790 KW - U. S. Department of Energy KW - pressure KW - numerical models KW - development KW - three-dimensional models KW - injection KW - government agencies KW - petroleum KW - waterflooding KW - simulation KW - reservoir rocks KW - case studies KW - physical properties KW - saturation KW - National Energy Technology Laboratory KW - reservoir properties KW - applications KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664437192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=World+Oil&rft.atitle=NETL+develops+advanced+CO+%28sub+2%29+foam+reservoir+simulator&rft.au=Jikich%2C+Sinisha+A&rft.aulast=Jikich&rft.aufirst=Sinisha&rft.date=2014-10-01&rft.volume=235&rft.issue=10&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=World+Oil&rft.issn=00438790&rft_id=info:doi/ L2 - http://www.worldoil.com/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. incl. 3 tables, block diags. N1 - Last updated - 2015-03-19 N1 - CODEN - WOOIAS N1 - SubjectsTermNotLitGenreText - applications; case studies; development; government agencies; injection; National Energy Technology Laboratory; numerical models; petroleum; physical properties; pressure; reservoir properties; reservoir rocks; saturation; simulation; three-dimensional models; U. S. Department of Energy; waterflooding ER - TY - JOUR T1 - Kinetic Monte Carlo simulation of CO adsorption on sulfur-covered Pd(100). AN - 1560578686; 24494801 AB - The use of atomistic Kinetic Monte Carlo method was explored to examine the influence of sulfur poisoning on CO adsorption on Pd(100) surface. The model explicitly incorporates key elementary processes such as CO adsorption and CO desorption including diffusion of surface CO and S species. Relevant energetic and kinetic parameters were derived using information calculated from density functional theory as a starting point. Kinetic Monte Carlo simulation was performed to determine relevant observables such as CO saturation coverage as a function of amount of preadsorbed sulfur and to predict temperature programmed desorption spectra. JF - The journal of physical chemistry. A AU - Alfonso, Dominic R AD - National Energy Technology Laboratory, U.S. Department of Energy , Pittsburgh, Pennsylvania 15236, United States. Y1 - 2014/09/04/ PY - 2014 DA - 2014 Sep 04 SP - 7306 EP - 7313 VL - 118 IS - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560578686?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+journal+of+physical+chemistry.+A&rft.atitle=Kinetic+Monte+Carlo+simulation+of+CO+adsorption+on+sulfur-covered+Pd%28100%29.&rft.au=Alfonso%2C+Dominic+R&rft.aulast=Alfonso&rft.aufirst=Dominic&rft.date=2014-09-04&rft.volume=118&rft.issue=35&rft.spage=7306&rft.isbn=&rft.btitle=&rft.title=The+journal+of+physical+chemistry.+A&rft.issn=1520-5215&rft_id=info:doi/10.1021%2Fjp4115817 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2015-05-22 N1 - Date created - 2014-09-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/jp4115817 ER - TY - JOUR T1 - Measurement of atmospheric pollutants associated with oil and natural gas exploration and production activity in Pennsylvania's Allegheny National Forest AN - 1651414462; 21188712 AB - Oil and natural gas exploration and production (E&P) activities generate emissions from diesel engines, compressor stations, condensate tanks, leaks and venting of natural gas, construction of well pads, and well access roads that can negatively impact air quality on both local and regional scales. A mobile, autonomous air quality monitoring laboratory was constructed to collect measurements of ambient concentrations of pollutants associated with oil and natural gas E&P activities. This air-monitoring laboratory was deployed to the Allegheny National Forest (ANF) in northwestern Pennsylvania for a campaign that resulted in the collection of approximately 7 months of data split between three monitoring locations between July 2010 and June 2011. The three monitoring locations were the Kane Experimental Forest (KEF) area in Elk County, which is downwind of the Sackett oilfield; the Bradford Ranger Station (BRS) in McKean County, which is downwind of a large area of historic oil and gas productivity; and the U.S. Forest Service Hearts Content campground (HC) in Warren County, which is in an area relatively unimpacted by oil and gas development and which therefore yielded background pollutant concentrations in the ANF. Concentrations of criteria pollutants ozone and NO sub(2) did not vary significantly from site to site; averages were below National Ambient Air Quality Standards. Concentrations of volatile organic compounds (VOCs) associated with oil and natural gas (ethane, propane, butane, pentane) were highly correlated. Applying the conditional probability function (CPF) to the ethane data yielded most probable directions of the sources that were coincident with known location of existing wells and activity. Differences between the two impacted and one background site were difficult to discern, suggesting the that the monitoring laboratory was a great enough distance downwind of active areas to allow for sufficient dispersion with background air such that the localized plumes were not detected. JF - Journal of the Air & Waste Management Association AU - Pekney, Natalie J AU - Veloski, Garret AU - Reeder, Matthew AU - Tamilia, Joseph AU - Rupp, Erik AU - Wetzel, Alan AD - U.S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA, USA Y1 - 2014/09/02/ PY - 2014 DA - 2014 Sep 02 SP - 1062 EP - 1072 PB - Taylor & Francis Group Ltd., 2 Park Square Oxford OX14 4RN United Kingdom VL - 64 IS - 9 SN - 1096-2247, 1096-2247 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Environmental monitoring KW - Stations KW - Pollutants KW - Construction KW - Forests KW - Standards KW - Air quality KW - Natural gas UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651414462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=A+Market+Re-Emerges+for+%27Junk%27+Debt&rft.au=Natarajan%2C+Prabha&rft.aulast=Natarajan&rft.aufirst=Prabha&rft.date=2011-12-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-02-01 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1080/10962247.2014.897270 ER - TY - JOUR T1 - Hydrate nucleation in quiescent and dynamic conditions AN - 1765968502; 20960473 AB - Gas hydrate nucleation is the spontaneous formation of an ordered crystalline lattice from a disordered phase. This inherently random process often involves long induction times particularly in quiescent conditions. An experimental study was conducted to explore the kinetics of hydrate formation in the presence of mineral grains and when subjected to mechanical agitation. Results show that tetrahydrofuran THF hydrate nucleation is facilitated in the presence of most minerals, and induction times are a function of mineralogy and surface characteristics. While mechanical vibration does not suppress the inherent stochastic nature of nucleation, mechanical agitation triggers nucleation when the imposed acceleration exceeds 10m/s2. JF - Fluid Phase Equilibria AU - Dai, Sheng AU - Lee, Joo Yong AU - Santamarina, JCarlos AD - National Energy Technology Laboratory, Morgantown, WV 26507, USA Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 107 EP - 112 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 378 SN - 0378-3812, 0378-3812 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Hydrate KW - Nucleation KW - Mechanical agitation KW - Interfacial tension KW - Mineralogy KW - Acceleration KW - Dynamics KW - Vibrations KW - Gas hydrates KW - Kinetics KW - Random processes KW - Hydrates KW - Minerals KW - SW 0810:General KW - Q2 09183:Physics and chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765968502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fluid+Phase+Equilibria&rft.atitle=Hydrate+nucleation+in+quiescent+and+dynamic+conditions&rft.au=Dai%2C+Sheng%3BLee%2C+Joo+Yong%3BSantamarina%2C+JCarlos&rft.aulast=Dai&rft.aufirst=Sheng&rft.date=2014-09-01&rft.volume=378&rft.issue=&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Fluid+Phase+Equilibria&rft.issn=03783812&rft_id=info:doi/10.1016%2Fj.fluid.2014.07.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Gas hydrates; Random processes; Mineralogy; Hydrates; Acceleration; Vibrations; Nucleation; Kinetics; Minerals; Dynamics DO - http://dx.doi.org/10.1016/j.fluid.2014.07.006 ER - TY - JOUR T1 - Effect of contaminants from flue gas on CO (sub 2) sequestration in saline formation AN - 1629943495; 2014-094065 AB - Deep saline aquifers are reported to have the largest estimated capacity for CO (sub 2) sequestration. Most geochemical studies on CO (sub 2) storage in saline formations are focused on the interactions of pure CO (sub 2) and do not consider the potential impacts of contaminants such as SO (sub 2) found in typical post-composition flue gas streams. This paper reports on results of a combined CO (sub 2) -co-contaminant-brine-rock experimental and a simple modeling study of the potential impact of flue gas contaminants on saline formations. Chemical reactions of the sandstone from Mount Simon formation exposed to CO (sub 2) mixed with other gas species under sequestration conditions were studied (i.e. solid material -- representative Mount Simon sandstone; liquid -- synthetic Illinois Basin brine; T and P -- 50 degrees C, 110 bar; gas composition -- 1% SO (sub 2) , 4% O (sub 2) , 95% CO (sub 2) ). The experimental study indicates that the co-injection of 1% SO (sub 2) would lead to substantially reduced brine pH due to the formation of sulfuric acid and the formation of bassanite (major) and anhydrites. Preliminary equilibrium computational modeling yielded similar results. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - International Journal of Energy Research AU - Soong, Yee AU - Hedges, Sheila W AU - Howard, Bret H AU - Dilmore, Robert M AU - Allen, Douglas E Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 1224 EP - 1232 PB - Wiley Interscience, London-New York VL - 38 IS - 9 SN - 0363-907X, 0363-907X KW - United States KW - Illinois Basin KW - carbon sequestration KW - Illinois KW - X-ray diffraction data KW - pollutants KW - Paleozoic KW - physicochemical properties KW - sandstone KW - pollution KW - Mount Simon Sandstone KW - Cambrian KW - ground water KW - aquifers KW - Upper Cambrian KW - sedimentary rocks KW - brines KW - saline aquifers KW - clastic rocks KW - underground disposal KW - SEM data KW - pH KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Energy+Research&rft.atitle=Effect+of+contaminants+from+flue+gas+on+CO+%28sub+2%29+sequestration+in+saline+formation&rft.au=Soong%2C+Yee%3BHedges%2C+Sheila+W%3BHoward%2C+Bret+H%3BDilmore%2C+Robert+M%3BAllen%2C+Douglas+E&rft.aulast=Soong&rft.aufirst=Yee&rft.date=2014-07-01&rft.volume=38&rft.issue=9&rft.spage=1224&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Energy+Research&rft.issn=0363907X&rft_id=info:doi/10.1002%2Fer.3140 L2 - http://www3.interscience.wiley.com/journal/3343/home LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-12-04 N1 - SubjectsTermNotLitGenreText - aquifers; brines; Cambrian; carbon sequestration; clastic rocks; ground water; Illinois; Illinois Basin; Mount Simon Sandstone; Paleozoic; pH; physicochemical properties; pollutants; pollution; saline aquifers; sandstone; sedimentary rocks; SEM data; underground disposal; United States; Upper Cambrian; X-ray diffraction data DO - http://dx.doi.org/10.1002/er.3140 ER - TY - JOUR T1 - Water permeability in hydrate-bearing sediments; a pore-scale study AN - 1629943601; 2014-094233 AB - Permeability is a critical parameter governing methane flux and fluid flow in hydrate-bearing sediments; however, limited valid data are available due to experimental challenges. Here we investigate the relationship between apparent water permeability (k') and hydrate saturation (S (sub h) ), accounting for hydrate pore-scale growth habit and meso-scale heterogeneity. Results from capillary tube models rely on cross-sectional tube shapes and hydrate pore habits, thus are appropriate only for sediments with uniform hydrate distribution and known hydrate pore character. Given our pore network modeling results showing that accumulating hydrate in sediments decreases sediment porosity and increases hydraulic tortuosity, we propose a modified Kozeny-Carman model to characterize water permeability in hydrate-bearing sediments. This model agrees well with experimental results and can be easily implemented in reservoir simulators with no empirical variables other than S (sub h) . Results are also relevant to flow through other natural sediments that undergo diagenesis, salt precipitation, or bio-clogging. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Dai, Sheng AU - Seol, Yongkoo Y1 - 2014/06/28/ PY - 2014 DA - 2014 Jun 28 SP - 4176 EP - 4184 PB - American Geophysical Union, Washington, DC VL - 41 IS - 12 SN - 0094-8276, 0094-8276 KW - water KW - hydrology KW - methane KW - gas hydrates KW - aliphatic hydrocarbons KW - tortuosity KW - fluid flow KW - alkanes KW - reservoir rocks KW - organic compounds KW - marine sediments KW - saturation KW - precipitation KW - diagenesis KW - sediments KW - hydrocarbons KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Water+permeability+in+hydrate-bearing+sediments%3B+a+pore-scale+study&rft.au=Dai%2C+Sheng%3BSeol%2C+Yongkoo&rft.aulast=Dai&rft.aufirst=Sheng&rft.date=2014-06-28&rft.volume=41&rft.issue=12&rft.spage=4176&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL060535 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-12-04 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; diagenesis; fluid flow; gas hydrates; hydrocarbons; hydrology; marine sediments; methane; organic compounds; permeability; precipitation; reservoir rocks; saturation; sediments; tortuosity; water DO - http://dx.doi.org/10.1002/2014GL060535 ER - TY - CPAPER T1 - Air Quality Impact of Marcellus Shale Natural Gas Development at Two West Virginia Sites T2 - 107th Air and Waste Management Association Annual Conference AN - 1562647090; 6305337 JF - 107th Air and Waste Management Association Annual Conference AU - Pekney, N AU - McCawley, M AU - Reeder, M AU - Garret, V AU - Diehl, J Y1 - 2014/06/24/ PY - 2014 DA - 2014 Jun 24 KW - Air quality KW - Shale KW - Natural gas KW - USA, West Virginia UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1562647090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=107th+Air+and+Waste+Management+Association+Annual+Conference&rft.atitle=Air+Quality+Impact+of+Marcellus+Shale+Natural+Gas+Development+at+Two+West+Virginia+Sites&rft.au=Pekney%2C+N%3BMcCawley%2C+M%3BReeder%2C+M%3BGarret%2C+V%3BDiehl%2C+J&rft.aulast=Pekney&rft.aufirst=N&rft.date=2014-06-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=107th+Air+and+Waste+Management+Association+Annual+Conference&rft.issn=&rft_id=info:doi/ L2 - http://ace2014.awma.org/wp-content/uploads/2013/08/ACE-2014-Final-Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-08-31 N1 - Last updated - 2014-09-18 ER - TY - JOUR T1 - Application of near-surface geophysics as part of a hydrologic study of a subsurface drip irrigation system along the Powder River floodplain near Arvada, Wyoming AN - 1529799612; 2014-036904 AB - Rapid development of coalbed natural gas (CBNG) production in the Powder River Basin (PRB) of Wyoming has occurred since 1997. National attention related to CBNG development has focused on produced water management, which is the single largest cost for on-shore domestic producers. Low-cost treatment technologies allow operators to reduce their disposal costs, provide treated water for beneficial use, and stimulate oil and gas production by small operators. Subsurface drip irrigation (SDI) systems are one potential treatment option that allows for increased CBNG production by providing a beneficial use for the produced water in farmland irrigation. Water management practices in the development of CBNG in Wyoming have been aided by integrated geophysical, geochemical, and hydrologic studies of both the disposal and utilization of water. The U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) and the U.S. Geological Survey (USGS) have utilized multi-frequency airborne, ground, and borehole electromagnetic (EM) and ground resistivity methods to characterize the near-surface hydrogeology in areas of produced water disposal. These surveys provide near-surface EM data that can be compared with results of previous surveys to monitor changes in soils and local hydrology over time as the produced water is discharged through SDI. The focus of this investigation is the Headgate Draw SDI site, situated adjacent to the Powder River near the confluence of a major tributary, Crazy Woman Creek, in Johnson County, Wyoming. The SDI system was installed during the summer of 2008 and began operation in October of 2008. Ground, borehole, and helicopter electromagnetic (HEM) conductivity surveys were conducted at the site prior to the installation of the SDI system. After the installation of the subsurface drip irrigation system, ground EM surveys have been performed quarterly (weather permitting). The geophysical surveys map the heterogeneity of the near-surface geology and hydrology of the study area. The geophysical data are consistent between surveys using different techniques and between surveys carried out at different times from 2007 through 2011. This paper summarizes geophysical results from the 4-year monitoring study of the SDI system. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Sams, James I AU - Veloski, Garret AU - Smith, Bruce D AU - Minsley, Burke J AU - Engle, Mark A AU - Lipinski, Brian A AU - Hammack, Richard W AU - Zupancic, John W Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 128 EP - 139 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - geophysical surveys KW - waste water KW - natural gas KW - floodplains KW - well-logging KW - Headgate Draw KW - government agencies KW - water management KW - petroleum KW - irrigation KW - ground water KW - geographic information systems KW - electromagnetic methods KW - applications KW - Powder River basin KW - Johnson County Wyoming KW - hydrology KW - best management practices KW - geophysical methods KW - agriculture KW - Crazy Woman Creek KW - Wyoming KW - fluvial features KW - coalbed methane KW - surveys KW - information systems KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529799612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Application+of+near-surface+geophysics+as+part+of+a+hydrologic+study+of+a+subsurface+drip+irrigation+system+along+the+Powder+River+floodplain+near+Arvada%2C+Wyoming&rft.au=Sams%2C+James+I%3BVeloski%2C+Garret%3BSmith%2C+Bruce+D%3BMinsley%2C+Burke+J%3BEngle%2C+Mark+A%3BLipinski%2C+Brian+A%3BHammack%2C+Richard+W%3BZupancic%2C+John+W&rft.aulast=Sams&rft.aufirst=James&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=128&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.10.009 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-08-14 N1 - SubjectsTermNotLitGenreText - agriculture; applications; best management practices; coalbed methane; Crazy Woman Creek; electromagnetic methods; floodplains; fluvial features; geographic information systems; geophysical methods; geophysical surveys; government agencies; ground water; Headgate Draw; hydrology; information systems; irrigation; Johnson County Wyoming; natural gas; petroleum; Powder River basin; surveys; United States; waste water; water management; well-logging; Wyoming DO - http://dx.doi.org/10.1016/j.coal.2013.10.009 ER - TY - JOUR T1 - Relationships between water and gas chemistry in mature coalbed methane reservoirs of the Black Warrior Basin AN - 1529799582; 2014-036901 AB - Water and gas chemistry in coalbed methane reservoirs of the Black Warrior Basin reflects a complex interplay among burial processes, basin hydrodynamics, thermogenesis, and late-stage microbial methanogenesis. These factors are all important considerations for developing production and water management strategies. Produced water ranges from nearly potable sodium-bicarbonate water to hypersaline sodium-chloride brine. The hydrodynamic framework of the basin is dominated by structurally controlled fresh-water plumes that formed by meteoric recharge along the southeastern margin of the basin. The produced water contains significant quantities of hydrocarbons and nitrogen compounds, and the produced gas appears to be of mixed thermogenic-biogenic origin. Late-stage microbial methanogenesis began following unroofing of the basin, and stable isotopes in the produced gas and in mineral cements indicate that late-stage methanogenesis occurred along a CO (sub 2) -reduction metabolic pathway. Hydrocarbons, as well as small amounts of nitrate in the formation water, probably helped nourish the microbial consortia, which were apparently active in fresh to hypersaline water. The produced water contains NH (sub 4) (super +) and NH (sub 3) , which correlate strongly with brine concentration and are interpreted to be derived from silicate minerals. Denitrification reactions may have generated some N (sub 2) , which is the only major impurity in the coalbed gas. Carbon dioxide is a minor component of the produced gas, but significant quantities are dissolved in the formation water. Degradation of organic compounds, augmented by deionization of NH (sub 4) (super +) , may have been the principal sources of hydrogen facilitating late-stage CO (sub 2) reduction. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Pashin, Jack C AU - McIntyre-Redden, Marcella R AU - Mann, Steven D AU - Kopaska-Merkel, David C AU - Varonka, Matthew AU - Orem, William Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 92 EP - 105 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - ammonium KW - plumes KW - isotopes KW - natural gas KW - ammonium ion KW - aliphatic hydrocarbons KW - petroleum KW - Alabama KW - stable isotopes KW - reservoir rocks KW - nitrogen KW - ground water KW - carbon dioxide KW - sedimentary rocks KW - coal KW - carbon KW - reduction KW - chemical composition KW - saline composition KW - methane KW - isotope ratios KW - C-13/C-12 KW - alkali metals KW - alkanes KW - sodium KW - bicarbonate ion KW - petroleum accumulation KW - Black Warrior Basin KW - organic compounds KW - biogenic processes KW - metals KW - brines KW - bacteria KW - hydrocarbons KW - coalbed methane KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529799582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Relationships+between+water+and+gas+chemistry+in+mature+coalbed+methane+reservoirs+of+the+Black+Warrior+Basin&rft.au=Pashin%2C+Jack+C%3BMcIntyre-Redden%2C+Marcella+R%3BMann%2C+Steven+D%3BKopaska-Merkel%2C+David+C%3BVaronka%2C+Matthew%3BOrem%2C+William&rft.aulast=Pashin&rft.aufirst=Jack&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=92&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.10.002 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - Alabama; aliphatic hydrocarbons; alkali metals; alkanes; ammonium; ammonium ion; bacteria; bicarbonate ion; biogenic processes; Black Warrior Basin; brines; C-13/C-12; carbon; carbon dioxide; chemical composition; coal; coalbed methane; ground water; hydrocarbons; isotope ratios; isotopes; metals; methane; natural gas; nitrogen; organic compounds; petroleum; petroleum accumulation; plumes; reduction; reservoir rocks; saline composition; sedimentary rocks; sodium; stable isotopes; United States DO - http://dx.doi.org/10.1016/j.coal.2013.10.002 ER - TY - JOUR T1 - An overview of Canadian shale gas production and environmental concerns AN - 1529799564; 2014-036899 AB - Production of hydrocarbons from Canadian shales started slowly in 2005 and has significantly increased since. Natural gas is mainly being produced from Devonian shales in the Horn River Basin and from the Triassic Montney shales and siltstones, both located in northeastern British Columbia and, to a lesser extent, in the Devonian Duvernay Formation in Alberta (western Canada). Other shales with natural gas potential are currently being evaluated, including the Upper Ordovician Utica Shale in southern Quebec and the Mississippian Frederick Brook Shale in New Brunswick (eastern Canada). This paper describes the status of shale gas exploration and production in Canada, including discussions on geological contexts of the main shale formations containing natural gas, water use for hydraulic fracturing, the types of hydraulic fracturing, public concerns and on-going research efforts. As the environmental debate concerning the shale gas industry is rather intense in Quebec, the Utica Shale context is presented in more detail. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Rivard, Christine AU - Lavoie, Denis AU - Lefebvre, Rene AU - Sejourne, Stephan AU - Lamontagne, Charles AU - Duchesne, Mathieu Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 64 EP - 76 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - petroleum exploration KW - Mississippian KW - shale gas KW - Quebec KW - natural gas KW - petroleum KW - production KW - environmental analysis KW - Alberta KW - environmental effects KW - Lower Triassic KW - Ordovician KW - Duvernay Formation KW - Triassic KW - Montney Formation KW - Maritime Provinces KW - hydraulic fracturing KW - Horn River basin KW - Paleozoic KW - Carboniferous KW - British Columbia KW - Mesozoic KW - New Brunswick KW - Devonian KW - Canada KW - Western Canada KW - Frederick Brook Shale KW - Eastern Canada KW - Utica Shale KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529799564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aabiglobal&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Iran+Broadcasts+Video+of+Claimed+Downed+U.S.+Drone&rft.au=Fassihi%2C+Farnaz&rft.aulast=Fassihi&rft.aufirst=Farnaz&rft.date=2011-12-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 68 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - Alberta; British Columbia; Canada; Carboniferous; Devonian; Duvernay Formation; Eastern Canada; environmental analysis; environmental effects; Frederick Brook Shale; Horn River basin; hydraulic fracturing; Lower Triassic; Maritime Provinces; Mesozoic; Mississippian; Montney Formation; natural gas; New Brunswick; Ordovician; Paleozoic; petroleum; petroleum exploration; production; Quebec; shale gas; Triassic; Utica Shale; Western Canada DO - http://dx.doi.org/10.1016/j.coal.2013.12.004 ER - TY - JOUR T1 - The Utica Shale and gas play in southern Quebec; geological and hydrogeological syntheses and methodological approaches to groundwater risk evaluation AN - 1529799563; 2014-036900 AB - The risk of groundwater contamination from shale gas exploration and development is a major societal concern, especially in populated areas where groundwater is an essential source of drinking water and for agricultural or industrial use. Since groundwater decontamination is difficult, or nearly impossible, it is essential to evaluate exploration and production conditions that would prevent or at least minimize risks of groundwater contamination. The current consensus in recent literature is that these risks are primarily related to engineering issues, including casing integrity and surface activities, such as truck traffic (equipment and fluid haulage), waste management (mainly drill cuttings), and water storage and treatment when hydraulic fracturing is utilized. Concerns have also been raised with respect to groundwater contamination that could result from potential fracture or fault interconnections between the shale unit and surficial aquifers, which would allow fracturing fluids and methane to reach the surface away from the wellbore. Despite the fact that groundwater resources are relatively well characterized in some regions, there is currently no recognized method to evaluate the vulnerability or risks to aquifers resulting from hydrocarbon industry operations carried out at great depths. This paper focuses on the Utica Shale of the St. Lawrence Platform (Quebec), where an environmental study aiming to evaluate potential risks for aquifers related to shale gas development has been initiated. To provide the context of these research efforts, this paper describes the regional tectono-stratigraphic evolution and current stress regime of the Cambrian-Ordovician St. Lawrence Platform, as well as the Utica Shale internal stratigraphy, mineralogy and thermal maturation. Then, the hydrogeological context of the St. Lawrence Platform is discussed. Finally, the methodology for this environmental study, based on geological, geophysical, geomechanical, hydrogeological and geochemical data, is presented. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Lavoie, Denis AU - Rivard, Christine AU - Lefebvre, Rene AU - Sejourne, Stephan AU - Theriault, R AU - Duchesne, M J AU - Ahad, J M E AU - Wang, B AU - Benoit, N AU - Lamontagne, Charles Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 77 EP - 91 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - water quality KW - petroleum exploration KW - development KW - shale gas KW - Quebec KW - natural gas KW - petroleum KW - hydrogeology KW - environmental analysis KW - drinking water KW - environmental effects KW - Cambrian KW - ground water KW - Ordovician KW - mineral composition KW - thermal maturity KW - water pollution KW - stratigraphy KW - hydraulic fracturing KW - North America KW - Paleozoic KW - pollution KW - Canada KW - Saint Lawrence River basin KW - risk assessment KW - Eastern Canada KW - Utica Shale KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529799563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=The+Utica+Shale+and+gas+play+in+southern+Quebec%3B+geological+and+hydrogeological+syntheses+and+methodological+approaches+to+groundwater+risk+evaluation&rft.au=Lavoie%2C+Denis%3BRivard%2C+Christine%3BLefebvre%2C+Rene%3BSejourne%2C+Stephan%3BTheriault%2C+R%3BDuchesne%2C+M+J%3BAhad%2C+J+M+E%3BWang%2C+B%3BBenoit%2C+N%3BLamontagne%2C+Charles&rft.aulast=Lavoie&rft.aufirst=Denis&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.10.011 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 82 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - Cambrian; Canada; development; drinking water; Eastern Canada; environmental analysis; environmental effects; ground water; hydraulic fracturing; hydrogeology; mineral composition; natural gas; North America; Ordovician; Paleozoic; petroleum; petroleum exploration; pollution; Quebec; risk assessment; Saint Lawrence River basin; shale gas; stratigraphy; thermal maturity; Utica Shale; water pollution; water quality DO - http://dx.doi.org/10.1016/j.coal.2013.10.011 ER - TY - JOUR T1 - An approach for assessing engineering risk from shale gas wells in the United States AN - 1529797512; 2014-036894 AB - In response to a series of "energy crises" in the 1970s, the United States government began investigating the potential of unconventional, domestic sources of energy to offset imported oil. Hydraulic fracturing applied to vertical tight sand and coal bed methane wells achieved some degree of success during a period of high energy prices in the early 1980s, but shale gas remained largely untapped until the late 1990s with the application of directional drilling, a mature technology adapted from deepwater offshore platforms that allowed horizontal wells to penetrate kilometers of organic-rich shale, and staged hydraulic fracturing, which created high permeability flowpaths from the horizontal wells into a much greater volume of the target formations than previous completion methods. These new engineering techniques opened up vast unconventional natural gas and oil reserves, but also raised concerns about potential environmental impacts. These include short-term and long-term impacts to air and water quality from rig operations, potential migration of gas, fluids and chemicals through the ground, and effects on small watersheds and landscapes from roads, pads and other surface structures. Engineering risk assessment commonly uses integrated assessment models (IAMs), which define sources of risk from features, events and processes. The risk from each system element is assessed using high-fidelity models. Output from these is simplified into reduced-order models, so that a large, integrated site performance assessment can be run using the IAM. The technique has been applied to engineered systems in geologic settings for sequestering carbon dioxide, and it is also applicable to shale gas, albeit with some modifications of the various system elements. Preliminary findings indicate that shale gas well drilling and hydraulic fracturing techniques are generally safe when properly applied. Incident reports recorded by state environmental agencies suggest that human error resulting from the disregard of prescribed practices is the greatest cause of environmental incidents. This can only be addressed through education, regulations and enforcement. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Soeder, Daniel J AU - Sharma, Shikha AU - Pekney, Natalie AU - Hopkinson, Leslie AU - Dilmore, Robert AU - Kutchko, Barbara AU - Stewart, Brian W AU - Carter, Kimberly AU - Hakala, Alexandra AU - Capo, Rosemary C Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 4 EP - 19 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - hydrology KW - hydraulic fracturing KW - horizontal drilling KW - carbon sequestration KW - shale gas KW - shale KW - natural gas KW - watersheds KW - pollution KW - petroleum KW - tight sands KW - environmental effects KW - oil wells KW - sedimentary rocks KW - safety KW - boreholes KW - coalbed methane KW - risk assessment KW - directional drilling KW - drilling KW - clastic rocks KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529797512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=An+approach+for+assessing+engineering+risk+from+shale+gas+wells+in+the+United+States&rft.au=Soeder%2C+Daniel+J%3BSharma%2C+Shikha%3BPekney%2C+Natalie%3BHopkinson%2C+Leslie%3BDilmore%2C+Robert%3BKutchko%2C+Barbara%3BStewart%2C+Brian+W%3BCarter%2C+Kimberly%3BHakala%2C+Alexandra%3BCapo%2C+Rosemary+C&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2014.01.004 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 138 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - boreholes; carbon sequestration; clastic rocks; coalbed methane; directional drilling; drilling; environmental effects; horizontal drilling; hydraulic fracturing; hydrology; natural gas; oil wells; petroleum; pollution; risk assessment; safety; sedimentary rocks; shale; shale gas; tight sands; United States; watersheds DO - http://dx.doi.org/10.1016/j.coal.2014.01.004 ER - TY - JOUR T1 - Carbon isotope characterization of Powder River basin coal bed waters; key to minimizing unnecessary water production and implications for exploration and production of biogenic gas AN - 1529797483; 2014-036902 AB - Compared to other natural waters, water associated with biogenic natural gas is enriched in 13-carbon. Shallow coal seams regularly contain abundant resources of biogenic gas; as such water associated with biogenic gas in these coal beds is isotopically distinct from other waters. The production of gas from coal beds requires the removal of large volumes of produced water. Thus a method of discerning coalbed reservoir water from other natural waters (surface and groundwater) is important to both the coalbed natural gas (CBNG) industry and associated environmental and regulatory agencies. Although isotopic tracers have been employed to identify coalbed natural gas produced waters, the isotopic variability within the reservoir has not been documented and explained. In this study, we present the isotopic compositions of dissolved inorganic carbon, oxygen and hydrogen for water produced from 197 CBNG wells in the Powder River Basin of Wyoming and Montana. This extensive database allows us to distinguish variations in isotopic compositions that may occur by multiple processes. These include variations that identify efficient dewatering of coal beds, variations characterizing incomplete hydraulic isolation of coal beds from adjacent strata and the subsequent mixing of groundwaters, variations related to well completion design, and variations associated with geochemical and biogenic processes that occur along groundwater flow paths. These data suggest that little change in delta (super 13) C (sub DIC) occurs within the reservoir as a result of water and gas production; thus, the carbon isotopic composition informs other processes within the reservoir unrelated to coalbed natural gas recovery. The delta (super 13) C (sub DIC) and delta D of groundwater vary along flow-path across the basin, reflecting different methanogenic pathways that are associated with different isotopic fractionations, and the pathways that dominate in different areas within the basin. In areas where several producing coal seams are present, the delta (super 13) C (sub DIC) and delta D of produced waters from each seam are distinct. Therefore on a local scale, the isotopic composition of produced water can identify the particular coal seam from which water and gas are withdrawn. The methods and results presented in this case study provide examples that illustrate how water quality and isotopic data can be used to determine the hydraulic connectivity between coal and non-coal strata, identify and quantify water from individual coal horizons, as well as predict and understand the isotopic variability of the reservoir. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Quillinan, Scott A AU - Frost, Carol D Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 106 EP - 119 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - water quality KW - oxygen KW - isotopes KW - natural gas KW - petroleum KW - coal seams KW - stable isotopes KW - reservoir rocks KW - ground water KW - sedimentary rocks KW - coal KW - carbon KW - deuterium KW - water pollution KW - Powder River basin KW - isotope ratios KW - C-13/C-12 KW - surface water KW - pollution KW - O-18/O-16 KW - Montana KW - Wyoming KW - biogenic processes KW - D/H KW - hydrogen KW - coalbed methane KW - 29A:Economic geology, geology of energy sources KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529797483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Carbon+isotope+characterization+of+Powder+River+basin+coal+bed+waters%3B+key+to+minimizing+unnecessary+water+production+and+implications+for+exploration+and+production+of+biogenic+gas&rft.au=Quillinan%2C+Scott+A%3BFrost%2C+Carol+D&rft.aulast=Quillinan&rft.aufirst=Scott&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.10.006 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - biogenic processes; C-13/C-12; carbon; coal; coal seams; coalbed methane; D/H; deuterium; ground water; hydrogen; isotope ratios; isotopes; Montana; natural gas; O-18/O-16; oxygen; petroleum; pollution; Powder River basin; reservoir rocks; sedimentary rocks; stable isotopes; surface water; United States; water pollution; water quality; Wyoming DO - http://dx.doi.org/10.1016/j.coal.2013.10.006 ER - TY - JOUR T1 - Mineralogy and trace element geochemistry of gas shales in the United States; environmental implications AN - 1529797414; 2014-036896 AB - This paper presents a compilation of published mineralogic and trace element data from nine gas shales in the United States. Formations analyzed include the Antrim, Bakken, Barnett, Eagle Ford, Haynesville, Marcellus, New Albany, Utica and Woodford. These mineralogic and trace element data can be used to assess the potential for environmental impacts during hydraulic fracturing. Impacts addressed in this study include: 1) the potential for acid rock drainage generation during gas shale weathering, 2) the distribution of trace elements in gas shales and comparison with regulatory guidelines, and 3) the implications for environmental management of well cuttings. The use of the mineralogic data to assess the fracability of the gas shales is also considered. Compilations of the mineralogy and geochemistry of gas shales can be a valuable resource for managing real and perceived environmental problems associated with their exploitation. Comprehensive environmental assessment to fully address these issues, in addition to other potential environmental impacts, will require collection and collation of additional data on the mineralogy and trace element geochemistry of gas and other hydrocarbon producing shales. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Chermak, John A AU - Schreiber, Madeline E Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 32 EP - 44 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - Mississippian KW - Woodford Shale KW - Haynesville Formation KW - shale gas KW - Cretaceous KW - natural gas KW - regulations KW - Barnett Shale KW - petroleum KW - tight sands KW - environmental analysis KW - Upper Cretaceous KW - Ordovician KW - sedimentary rocks KW - mineral composition KW - upper Paleozoic KW - Marcellus Shale KW - trace elements KW - chemical composition KW - hydraulic fracturing KW - Upper Jurassic KW - Jurassic KW - Bakken Formation KW - shale KW - Paleozoic KW - Carboniferous KW - acid rock drainage KW - gas shale KW - mineralogy KW - Eagle Ford Formation KW - weathering KW - Mesozoic KW - Middle Devonian KW - Devonian KW - New Albany Shale KW - Antrim Shale KW - Gulfian KW - clastic rocks KW - Utica Shale KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529797414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Mineralogy+and+trace+element+geochemistry+of+gas+shales+in+the+United+States%3B+environmental+implications&rft.au=Chermak%2C+John+A%3BSchreiber%2C+Madeline+E&rft.aulast=Chermak&rft.aufirst=John&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.12.005 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 89 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - acid rock drainage; Antrim Shale; Bakken Formation; Barnett Shale; Carboniferous; chemical composition; clastic rocks; Cretaceous; Devonian; Eagle Ford Formation; environmental analysis; gas shale; Gulfian; Haynesville Formation; hydraulic fracturing; Jurassic; Marcellus Shale; Mesozoic; Middle Devonian; mineral composition; mineralogy; Mississippian; natural gas; New Albany Shale; Ordovician; Paleozoic; petroleum; regulations; sedimentary rocks; shale; shale gas; tight sands; trace elements; United States; Upper Cretaceous; Upper Jurassic; upper Paleozoic; Utica Shale; weathering; Woodford Shale DO - http://dx.doi.org/10.1016/j.coal.2013.12.005 ER - TY - JOUR T1 - Water resource impacts during unconventional shale gas development; the Pennsylvania experience AN - 1529797245; 2014-036905 AB - Improvements in horizontal drilling and hydrofracturing have revolutionized the energy landscape by allowing the development of so-called "unconventional" gas resources. The Marcellus play in the northeastern U.S.A. documents how fast this technology developed: the number of unconventional Marcellus wells in Pennsylvania (PA) increased from 8 in 2005 to approximately 7234 today. Publicly available databases in PA show only rare evidence of contamination of surface and groundwaters. This could document that incidents that impact PA waters have been relatively rare and that contaminants were quickly diluted. However, firm conclusions are hampered by i) the lack of information about location and timing of incidents; ii) the tendency to not release water quality data related to specific incidents due to liability or confidentiality agreements; iii) the sparseness of sample and sensor data for the analytes of interest; iv) the presence of pre-existing water impairments that make it difficult to determine potential impacts from shale-gas activity; and v) the fact that sensors can malfunction or drift. Although the monitoring data available to assess contamination events in PA are limited, the state manages an online database of violations. Overall, one fifth of gas wells drilled were given at least one non-administrative notice of violation (NOV) from the PA regulator. Through March 2013, 3.4% of gas wells were issued NOVs for well construction issues and 0.24% of gas wells received NOVs related to methane migration into groundwater. Between 2008 and 2012, 161 of the approximately 1000 complaints received by the state described contamination that implicated oil or gas activity: natural gas was reported for 56% and brine salt components for 14% of the properties. Six percent of the properties were impacted by sediments, turbidity, and/or drill cuttings. Most of the sites of groundwater contamination with methane and/or salt components were in previously glaciated northern PA where fracture flow sometimes allows long distance fluid transport. No cases of subsurface transport of fracking or flowback fluids into water supplies were documented. If Marcellus-related flowback/production waters did enter surface or groundwaters, the most likely contaminants to be detected would be Na, Ca, and Cl, but those elements are already common in natural waters. The most Marcellus-specific "fingerprint" elements are Sr, Ba, and Br. For example, variable Br concentrations measured in southwestern PA streams were attributed to permitted release of wastewaters from unconventional shale gas wells into PA streams through municipal or industrial wastewater treatment plants before 2011. Discharge has now been discontinued except for brines from a few plants still permitted to discharge conventional oil/gas brines after treatment. Overall, drinking water supply problems determined by the regulator to implicate oil/gas activities peaked in frequency in 2010 while spill rates increased through 2012. Although many minor violations and temporary problems have been reported, the picture that emerges from PA is that the fast shale-gas start may have led to relatively few environmental incidents of significant impact compared to wells drilled; however, the impacts remain difficult to assess due to the lack of transparent and accessible data. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Brantley, Susan L AU - Yoxtheimer, Dave AU - Arjmand, Sina AU - Grieve, Paul AU - Vidic, Radisav AU - Pollak, Jon AU - Llewellyn, Garth T AU - Abad, Jorge D AU - Simon, Cesar Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 140 EP - 156 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - hydraulic fracturing KW - water quality KW - horizontal drilling KW - shale gas KW - Paleozoic KW - natural gas KW - pollution KW - petroleum KW - environmental effects KW - oil wells KW - Middle Devonian KW - Devonian KW - boreholes KW - Marcellus Shale KW - directional drilling KW - drilling KW - Pennsylvania KW - water pollution KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529797245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Water+resource+impacts+during+unconventional+shale+gas+development%3B+the+Pennsylvania+experience&rft.au=Brantley%2C+Susan+L%3BYoxtheimer%2C+Dave%3BArjmand%2C+Sina%3BGrieve%2C+Paul%3BVidic%2C+Radisav%3BPollak%2C+Jon%3BLlewellyn%2C+Garth+T%3BAbad%2C+Jorge+D%3BSimon%2C+Cesar&rft.aulast=Brantley&rft.aufirst=Susan&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.12.017 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - boreholes; Devonian; directional drilling; drilling; environmental effects; horizontal drilling; hydraulic fracturing; Marcellus Shale; Middle Devonian; natural gas; oil wells; Paleozoic; Pennsylvania; petroleum; pollution; shale gas; United States; water pollution; water quality DO - http://dx.doi.org/10.1016/j.coal.2013.12.017 ER - TY - JOUR T1 - Surface disposal of produced waters in western and southwestern Pennsylvania; potential for accumulation of alkali-earth elements in sediments AN - 1529797082; 2014-036907 AB - Waters co-produced with hydrocarbons in the Appalachian Basin are of notably poor quality (concentrations of total dissolved solids (TDS) and total radium up to and exceeding 300,000 mg/L and 10,000 pCi/L, respectively). Since 2008, a rapid increase in Marcellus Shale gas production has led to a commensurate rise in associated wastewater while generation of produced water from conventional oil and gas activities has continued. In this study, we assess whether disposal practices from treatment of produced waters from both shale gas and conventional operations in Pennsylvania could result in the accumulation of associated alkali earth elements. The results from our 5 study sites indicate that there was no increase in concentrations of total Ra (Ra-226) and extractable Ba, Ca, Na, or Sr in fluvial sediments downstream of the discharge outfalls (p>0.05) of publicly owned treatment works (POTWs) and centralized waste treatment facilities (CWTs). However, the use of road spreading of brines from conventional oil and gas wells for deicing resulted in accumulation of Ra-226 (1.2X), and extractable Sr (3.0X), Ca (5.3X), and Na (6.2X) in soil and sediment proximal to roads (p<0.05). Although this study is an important initial assessment of the impacts of these disposal practices, more work is needed to consider the environmental consequences of produced waters management. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Skalak, Katherine J AU - Engle, Mark A AU - Rowan, Elisabeth L AU - Jolly, Glenn D AU - Conko, Kathryn M AU - Benthem, Adam J AU - Kraemer, Thomas F Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 162 EP - 170 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - shale gas KW - isotopes KW - waste water KW - natural gas KW - water management KW - petroleum KW - environmental effects KW - Ra-226 KW - sedimentary rocks KW - radioactive isotopes KW - Appalachian Basin KW - Marcellus Shale KW - sediments KW - hydraulic fracturing KW - North America KW - alkaline earth metals KW - radium KW - Paleozoic KW - pollution KW - gas shale KW - recovery KW - Middle Devonian KW - Devonian KW - metals KW - Pennsylvania KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529797082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Surface+disposal+of+produced+waters+in+western+and+southwestern+Pennsylvania%3B+potential+for+accumulation+of+alkali-earth+elements+in+sediments&rft.au=Skalak%2C+Katherine+J%3BEngle%2C+Mark+A%3BRowan%2C+Elisabeth+L%3BJolly%2C+Glenn+D%3BConko%2C+Kathryn+M%3BBenthem%2C+Adam+J%3BKraemer%2C+Thomas+F&rft.aulast=Skalak&rft.aufirst=Katherine&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=162&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.12.001 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Appalachian Basin; Devonian; environmental effects; gas shale; hydraulic fracturing; isotopes; Marcellus Shale; metals; Middle Devonian; natural gas; North America; Paleozoic; Pennsylvania; petroleum; pollution; Ra-226; radioactive isotopes; radium; recovery; sedimentary rocks; sediments; shale gas; United States; waste water; water management DO - http://dx.doi.org/10.1016/j.coal.2013.12.001 ER - TY - JOUR T1 - The strontium isotopic evolution of Marcellus Formation produced waters, southwestern Pennsylvania AN - 1529794166; 2014-036898 AB - The production of natural gas and natural gas liquids from unconventional tight shale formations involves hydraulic fracturing and subsequent removal of fluids co-produced with the gas. The chemistry of the returning fluid reflects the original composition of the injection water, mobilized constituents in the shale formation, and co-mingled formation waters liberated by hydraulic fracturing. Produced water from unconventional gas wells tapping the Middle Devonian Marcellus Formation is characterized by high total dissolved solids (TDS), including very high strontium concentrations. In this study, the strontium isotope composition ( (super 87) Sr/ (super 86) Sr) was measured in produced waters from four horizontally drilled, hydraulically fractured Marcellus shale gas wells in southwestern Pennsylvania, sampled from the first day after commencement of flowback to as much as 27 months later. The (super 87) Sr/ (super 86) Sr of the waters tended to change rapidly over the first few days of water return, and then approached (but did not reach) a constant range of values from 0.7113 to 0.7114, which appears to be characteristic of this part of the Marcellus play. In contrast, the concentration of Sr rose more slowly and appeared to hit a steady state value (up to 3000 mg/L) by the end of the first year. Taken together with results from earlier work, these data suggest mixing between injected frac fluid and high-TDS formation water, highly enriched in Sr, and isotopically relatively uniform throughout the Marcellus shale gas play. This brine could exist within porous lenses of organic matter in the shale, in pre-existing fractures within the shale, and/or originate from fluids that migrated from adjacent formations at some point during the post-depositional history of the basin. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Capo, Rosemary C AU - Stewart, Brian W AU - Rowan, Elisabeth L AU - Kolesar Kohl, Courtney A AU - Wall, Andrew J AU - Chapman, Elizabeth C AU - Hammack, Richard W AU - Schroeder, Karl T Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 57 EP - 63 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - hydraulic fracturing KW - alkaline earth metals KW - shale gas KW - isotopes KW - shale KW - Paleozoic KW - natural gas KW - isotope ratios KW - pollution KW - petroleum KW - stable isotopes KW - ground water KW - Sr-87/Sr-86 KW - sedimentary rocks KW - Middle Devonian KW - Devonian KW - metals KW - Marcellus Shale KW - Pennsylvania KW - chemical composition KW - clastic rocks KW - strontium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=The+strontium+isotopic+evolution+of+Marcellus+Formation+produced+waters%2C+southwestern+Pennsylvania&rft.au=Capo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BRowan%2C+Elisabeth+L%3BKolesar+Kohl%2C+Courtney+A%3BWall%2C+Andrew+J%3BChapman%2C+Elizabeth+C%3BHammack%2C+Richard+W%3BSchroeder%2C+Karl+T&rft.aulast=Capo&rft.aufirst=Rosemary&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.12.010 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; chemical composition; clastic rocks; Devonian; ground water; hydraulic fracturing; isotope ratios; isotopes; Marcellus Shale; metals; Middle Devonian; natural gas; Paleozoic; Pennsylvania; petroleum; pollution; sedimentary rocks; shale; shale gas; Sr-87/Sr-86; stable isotopes; strontium; United States DO - http://dx.doi.org/10.1016/j.coal.2013.12.010 ER - TY - JOUR T1 - Organic substances in produced and formation water from unconventional natural gas extraction in coal and shale AN - 1529794132; 2014-036895 AB - Organic substances in produced and formation water from coalbed methane (CBM) and gas shale plays from across the USA were examined in this study. Disposal of produced waters from gas extraction in coal and shale is an important environmental issue because of the large volumes of water involved and the variable quality of this water. Organic substances in produced water may be environmentally relevant as pollutants, but have been little studied. Results from five CBM plays and two gas shale plays (including the Marcellus Shale) show a myriad of organic chemicals present in the produced and formation water. Organic compound classes present in produced and formation water in CBM plays include: polycyclic aromatic hydrocarbons (PAHs), heterocyclic compounds, alkyl phenols, aromatic amines, alkyl aromatics (alkyl benzenes, alkyl biphenyls), long-chain fatty acids, and aliphatic hydrocarbons. Concentrations of individual compounds range from <1 to 100mu g/L, but total PAHs (the dominant compound class for most CBM samples) range from 50 to 100mu g/L. Total dissolved organic carbon (TOC) in CBM produced water is generally in the 1-4 mg/L range. Excursions from this general pattern in produced waters from individual wells arise from contaminants introduced by production activities (oils, grease, adhesives, etc.). Organic substances in produced and formation water from gas shale unimpacted by production chemicals have a similar range of compound classes as CBM produced water, and TOC levels of about 8 mg/L. However, produced water from the Marcellus Shale using hydraulic fracturing has TOC levels as high as 5500 mg/L and a range of added organic chemicals including, solvents, biocides, scale inhibitors, and other organic chemicals at levels of 1000s of mu g/L for individual compounds. Levels of these hydraulic fracturing chemicals and TOC decrease rapidly over the first 20 days of water recovery and some level of residual organic contaminants remain up to 250 days after hydraulic fracturing. Although the environmental impacts of the organics in produced water are not well defined, results suggest that care should be exercised in the disposal and release of produced waters containing these organic substances into the environment because of the potential toxicity of many of these substances. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Orem, William AU - Tatu, Calin AU - Varonka, Matthew AU - Lerch, Harry AU - Bates, Anne AU - Engle, Mark A AU - Crosby, Lynn AU - McIntosh, Jennifer Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 20 EP - 31 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - shale gas KW - gas chromatograms KW - mass spectra KW - Alabama KW - phenols KW - sedimentary rocks KW - toxicity KW - Marcellus Shale KW - Paleocene KW - Williston Basin KW - Powder River basin KW - North America KW - shale KW - pollutants KW - Paleozoic KW - Paleogene KW - Black Warrior Basin KW - Wyoming KW - Tertiary KW - organic compounds KW - hydrocarbons KW - Pennsylvania KW - clastic rocks KW - aromatic hydrocarbons KW - United States KW - natural gas KW - aliphatic hydrocarbons KW - petroleum KW - environmental effects KW - ground water KW - Cenozoic KW - North Dakota KW - amines KW - total organic carbon KW - coal KW - Indiana KW - spectra KW - hydraulic fracturing KW - Illinois Basin KW - enhanced recovery KW - benzene KW - recovery KW - Tongue River Member KW - Montana KW - Middle Devonian KW - Devonian KW - New Albany Shale KW - chromatograms KW - coalbed methane KW - polycyclic aromatic hydrocarbons KW - Kentucky KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Organic+substances+in+produced+and+formation+water+from+unconventional+natural+gas+extraction+in+coal+and+shale&rft.au=Orem%2C+William%3BTatu%2C+Calin%3BVaronka%2C+Matthew%3BLerch%2C+Harry%3BBates%2C+Anne%3BEngle%2C+Mark+A%3BCrosby%2C+Lynn%3BMcIntosh%2C+Jennifer&rft.aulast=Orem&rft.aufirst=William&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2014.01.003 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - Alabama; aliphatic hydrocarbons; amines; aromatic hydrocarbons; benzene; Black Warrior Basin; Cenozoic; chromatograms; clastic rocks; coal; coalbed methane; Devonian; enhanced recovery; environmental effects; gas chromatograms; ground water; hydraulic fracturing; hydrocarbons; Illinois Basin; Indiana; Kentucky; Marcellus Shale; mass spectra; Middle Devonian; Montana; natural gas; New Albany Shale; North America; North Dakota; organic compounds; Paleocene; Paleogene; Paleozoic; Pennsylvania; petroleum; phenols; pollutants; polycyclic aromatic hydrocarbons; Powder River basin; recovery; sedimentary rocks; shale; shale gas; spectra; Tertiary; Tongue River Member; total organic carbon; toxicity; United States; Williston Basin; Wyoming DO - http://dx.doi.org/10.1016/j.coal.2014.01.003 ER - TY - JOUR T1 - A review of environmental impacts of salts from produced waters on aquatic resources AN - 1529794106; 2014-036906 AB - Salts are frequently a major constituent of waste waters produced during oil and gas production. These produced waters or brines must be treated and/or disposed and provide a daily challenge for operators and resource managers. Some elements of salts are regulated with water quality criteria established for the protection of aquatic wildlife, e.g. chloride (Cl (super -) ), which has an acute standard of 860 mg/L and a chronic standard of 230 mg/L. However, data for establishing such standards has only recently been studied for other components of produced water, such as bicarbonate (HCO (sub 3) (super -) ), which has acute median lethal concentrations (LC50s) ranging from 699 to >8000 mg/L and effects on chronic toxicity from 430 to 657 mg/L. While Cl (super -) is an ion of considerable importance in multiple geographical regions, knowledge about the effects of hardness (calcium and magnesium) on its toxicity and about mechanisms of toxicity is not well understood. A multiple-approach design that combines studies of both individuals and populations, conducted both in the laboratory and the field, was used to study toxic effects of bicarbonate (as NaHCO (sub 3) ). This approach allowed interpretations about mechanisms related to growth effects at the individual level that could affect populations in the wild. However, additional mechanistic data for HCO (sub 3) (super -) , related to the interactions of calcium (Ca (super 2+) ) precipitation at the microenvironment of the gill would dramatically increase the scientific knowledge base about how NaHCO (sub 3) might affect aquatic life. Studies of the effects of mixtures of multiple salts present in produced waters and more chronic effect studies would give a better picture of the overall potential toxicity of these ions. Organic constituents in hydraulic fracturing fluids, flowback waters, etc. are a concern because of their carcinogenic properties and this paper is not meant to minimize the importance of maintaining vigilance with respect to potential organic contamination. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Farag, Aida M AU - Harper, David D Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 157 EP - 161 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - water quality KW - natural gas KW - halogens KW - petroleum KW - production KW - environmental effects KW - ground water KW - unconventional oil and gas KW - sedimentary rocks KW - toxicity KW - chloride ion KW - water pollution KW - hydraulic fracturing KW - chlorine KW - sodium chloride KW - chemically precipitated rocks KW - pollution KW - bicarbonate ion KW - evaporites KW - recovery KW - brines KW - coalbed methane KW - water resources KW - salt KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=A+review+of+environmental+impacts+of+salts+from+produced+waters+on+aquatic+resources&rft.au=Farag%2C+Aida+M%3BHarper%2C+David+D&rft.aulast=Farag&rft.aufirst=Aida&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.12.006 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 40 N1 - Document feature - illus. N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - bicarbonate ion; brines; chemically precipitated rocks; chloride ion; chlorine; coalbed methane; environmental effects; evaporites; ground water; halogens; hydraulic fracturing; natural gas; petroleum; pollution; production; recovery; salt; sedimentary rocks; sodium chloride; toxicity; unconventional oil and gas; water pollution; water quality; water resources DO - http://dx.doi.org/10.1016/j.coal.2013.12.006 ER - TY - JOUR T1 - Geochemical processes controlling trace elemental mobility in coalbed natural gas (CBNG) disposal ponds in the Powder River basin, WY AN - 1529794071; 2014-036903 AB - A concern with CBNG produced water disposal ponds is the potential migration of trace elements into the underlying shallow aquifers. Objectives of this research were to 1) examine the chemistry of CBNG produced water in outfalls and corresponding disposal ponds and 2) determine possible leaching of trace elements from the disposal pond sediments into shallow aquifers. The CBNG outfall water, disposal pond water, and sediment samples were collected from the Powder River Basin (PRB), WY during the summer months of 2006 to 2009. Water samples were analyzed for pH, major cations, anions, and trace elements. Geochemical analysis was performed using MINTEQA2 model to determine speciation, complexation, and mineral precipitation and dissolution processes to determine the mobility of trace elements in CBNG disposal ponds. Two types of SAR calculations were made: 1) practical SAR (SARp) was calculated based on Na (super +) , Ca (super 2+) , and Mg (super 2+) concentrations and 2) true SAR (SARt) was calculated based on MINTEQA2 calculated activity of Na (super +) , Ca (super 2+) , and Mg (super 2+) . Sediment samples were analyzed for trace elements using toxicity characteristic leaching procedure (TCLP) to predict potential mobility of trace elements into the shallow aquifer. Research results suggest the pH of the CBNG produced water outfalls increases substantially in corresponding disposal ponds due to degassing of CO (sub 2) (carbon dioxide) from the disposal ponds. Observed high SAR values in CBNG disposal ponds compared to outfalls were attributed to increase in Na (super +) and decrease in Ca (super 2+) concentrations. The decrease in Ca (super 2+) concentration is attributed to the precipitation of calcite. Trace element concentrations such as As (arsenic), Cr (chromium), and Cu (copper) appear to increase in disposal ponds. Barium (Ba) and Mn (manganese) concentrations in the disposal ponds decreased substantially by precipitating as carbonate minerals into the sediments. Results of this study suggest that very minimum or no leaching of trace elements could occur from disposal pond sediments. However, further research is required to understand the role of SAR and sediment mineralogy in leaching of trace elements from CBNG disposal pond in the PRB, WY. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Reddy, K J AU - Helmericks, C AU - Whitman, A AU - Legg, D Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 120 EP - 127 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - waste water KW - natural gas KW - Missouri Plateau KW - data processing KW - petroleum KW - sedimentary rocks KW - toxicity KW - coal KW - sediments KW - trace elements KW - mobility KW - Powder River basin KW - heavy metals KW - hydraulic fracturing KW - pollutants KW - pollution KW - aquifers KW - computer programs KW - Wyoming KW - ponds KW - coalbed methane KW - cations KW - shallow aquifers KW - trace metals KW - leaching KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Geochemical+processes+controlling+trace+elemental+mobility+in+coalbed+natural+gas+%28CBNG%29+disposal+ponds+in+the+Powder+River+basin%2C+WY&rft.au=Reddy%2C+K+J%3BHelmericks%2C+C%3BWhitman%2C+A%3BLegg%2C+D&rft.aulast=Reddy&rft.aufirst=K&rft.date=2014-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - aquifers; cations; coal; coalbed methane; computer programs; data processing; heavy metals; hydraulic fracturing; leaching; Missouri Plateau; mobility; natural gas; petroleum; pollutants; pollution; ponds; Powder River basin; sedimentary rocks; sediments; shallow aquifers; toxicity; trace elements; trace metals; United States; waste water; Wyoming DO - http://dx.doi.org/10.1016/j.coal.2014.01.001 ER - TY - JOUR T1 - Environmental geology and the unconventional gas revolution AN - 1529794043; 2014-036893 JF - International Journal of Coal Geology Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 1 EP - 170 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - hydraulic fracturing KW - shale gas KW - natural gas KW - environmental geology KW - petroleum KW - environmental analysis KW - environmental effects KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2014-06-01&rft.volume=&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=Environmental+geology+and+the+unconventional+gas+revolution&rft.title=Environmental+geology+and+the+unconventional+gas+revolution&rft.issn=01665162&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - environmental analysis; environmental effects; environmental geology; hydraulic fracturing; natural gas; petroleum; shale gas ER - TY - JOUR T1 - Geochemical evolution of produced waters from hydraulic fracturing of the Marcellus Shale, northern Appalachian Basin; a multivariate compositional data analysis approach AN - 1529794013; 2014-036897 AB - Multivariate compositional data analysis methods were used to investigate geochemical data for water injected during hydraulic fracturing and for water produced from 19 Marcellus Shale gas wells in the northern Appalachian Basin. The data were originally published as part of an industry report. The analysis was adapted to consider the compositional nature of the data and avoid potentially spurious correlations present in raw concentration data through the application of log-ratio transformations. Techniques such as robust variation arrays, robust principal component analysis, and relative variation plots were applied to log-ratio transformed data. Results from this battery of multivariate tools indicate that two primary processes affect the chemical evolution of the water returned to the surface during the first 90 days of production: mixing of injected water with formation brines of evaporated paleoseawater origin and injection of sulfate-rich water during hydraulic fracturing may stimulate sulfate reduction at some sites. Spatial variability in sulfate/alkalinity ratios appears to influence variations in geochemical controls on strontium versus barium with elevated proportions of strontium being found in more bicarbonate-poor environments, while barium is a larger proportion in sulfate-poor areas. Comparison of results using a log-ratio approach versus the more common analysis of concentration data reveals both similarities and some marked differences in the resulting interpretations. Results from this work are important in terms of both demonstrating methods to avoid mathematical inconsistencies from using raw brine geochemical data and to further investigate the geochemical controls on produced waters generated from shale gas reservoirs. Abstract Copyright (2014) Elsevier, B.V. JF - International Journal of Coal Geology AU - Engle, Mark A AU - Rowan, Elisabeth L Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 45 EP - 56 PB - Elsevier, Amsterdam VL - 126 SN - 0166-5162, 0166-5162 KW - United States KW - sea water KW - Appalachians KW - environmental effects KW - ground water KW - multivariate analysis KW - Marcellus Shale KW - alkalinity KW - reduction KW - chemical composition KW - water pollution KW - West Virginia KW - hydraulic fracturing KW - North America KW - sulfates KW - principal components analysis KW - Paleozoic KW - statistical analysis KW - pollution KW - correlation coefficient KW - New York KW - Middle Devonian KW - Devonian KW - brines KW - Pennsylvania KW - Northern Appalachians KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Geochemical+evolution+of+produced+waters+from+hydraulic+fracturing+of+the+Marcellus+Shale%2C+northern+Appalachian+Basin%3B+a+multivariate+compositional+data+analysis+approach&rft.au=Engle%2C+Mark+A%3BRowan%2C+Elisabeth+L&rft.aulast=Engle&rft.aufirst=Mark&rft.date=2014-06-01&rft.volume=126&rft.issue=&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.11.010 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 64 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - alkalinity; Appalachians; brines; chemical composition; correlation coefficient; Devonian; environmental effects; ground water; hydraulic fracturing; Marcellus Shale; Middle Devonian; multivariate analysis; New York; North America; Northern Appalachians; Paleozoic; Pennsylvania; pollution; principal components analysis; reduction; sea water; statistical analysis; sulfates; United States; water pollution; West Virginia DO - http://dx.doi.org/10.1016/j.coal.2013.11.010 ER - TY - JOUR T1 - Application of the finite difference method to model pH and substrate concentration in a double-chamber microbial fuel cell AN - 1786201783; 19337657 AB - The purpose of this study was to develop a mathematical model that can describe glucose degradation in a microbial fuel cell (MFC) with the use of finite difference approach. The dynamic model can describe both substrate and pH changes in the anode chamber of a double-chamber MFC. It was developed using finite differences and incorporates basic mass transfer concepts. Model simulation results could fit the experimental data for substrate consumption well, while there was a moderate discrepancy (maximum 0.11 pH unit) between the simulated pH and the experimental data. A parametric sensitivity analysis showed that increases in acetate and propionate consumption rates can cause great decrease in chemical oxygen demand (COD) in the anode chamber, while an increase in glucose consumption rate does not result in significant changes of COD reduction. Therefore, the rate limitation steps of glucose degradation are the oxidations of secondary degradation products of glucose (acetate and propionate). Due to the buffering effect of the nutrient solution, the increases in glucose, acetate and propionate consumption rates did not result in much change on pH of the anode chamber. JF - Environmental Technology (Cranfield, UK) AU - Zhang, Liwei AU - Deshusses, Marc AD - National Energy Technology Laboratory, Pittsburgh, PA, USA Y1 - 2014/05/03/ PY - 2014 DA - 2014 May 03 SP - 1064 EP - 1076 PB - Taylor & Francis Group Ltd., 2 Park Square Oxford OX14 4RN United Kingdom VL - 35 IS - 9 SN - 0959-3330, 0959-3330 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Mathematical models KW - Degradation KW - Chambers KW - Microorganisms KW - Glucose KW - Acetates KW - pH KW - Biochemical fuel cells KW - Mathematical analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1786201783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Technology+%28Cranfield%2C+UK%29&rft.atitle=Application+of+the+finite+difference+method+to+model+pH+and+substrate+concentration+in+a+double-chamber+microbial+fuel+cell&rft.au=Zhang%2C+Liwei%3BDeshusses%2C+Marc&rft.aulast=Zhang&rft.aufirst=Liwei&rft.date=2014-05-03&rft.volume=35&rft.issue=9&rft.spage=1064&rft.isbn=&rft.btitle=&rft.title=Environmental+Technology+%28Cranfield%2C+UK%29&rft.issn=09593330&rft_id=info:doi/10.1080%2F09593330.2013.861021 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1080/09593330.2013.861021 ER - TY - JOUR T1 - Fluid effect on hydraulic fracture propagation behavior; a comparison between water and supercritical CO (sub 2) -like fluid AN - 1756507108; 2016-004348 AB - The initiation of hydraulic fractures during fluid injection in deep formations can be either engineered or induced unintentionally. Upon injection of CO (sub 2) , the pore fluids in deep formations can be changed from oil/saline water to CO (sub 2) or CO (sub 2) dominated. The type of fluid is important not only because the fluid must fracture the rock, but also because rocks saturated with different pore fluids behave differently. We investigated the influence of fluid properties on fracture propagation behavior by using the cohesive zone model in conjunction with a poroelasticity model. Simulation results indicate that the pore pressure fields are very different for different pore fluids even when the initial field conditions and injection schemes (rate and time) are kept the same. Low viscosity fluids with properties of supercritical CO (sub 2) will create relatively thin and much shorter fractures in comparison with fluids exhibiting properties of water under similar injection schemes. Two significant times are recognized during fracture propagation: the time at which a crack ceases opening and the later time point at which a crack ceases propagating. These times are very different for different fluids. Both fluid compressibility and viscosity influence fracture propagation, with viscosity being the more important property. Viscosity can greatly affect hydraulic conductivity and the leak-off coefficient. This analysis assumes the in-situ pore fluid and injected fluid are the same and the pore space is 100% saturated by that fluid at the beginning of the simulation. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Geofluids (Oxford) AU - Zhou, X AU - Burbey, T J Y1 - 2014/05// PY - 2014 DA - May 2014 SP - 174 EP - 188 PB - Wiley-Blackwell, Oxford VL - 14 IS - 2 SN - 1468-8115, 1468-8115 KW - fluid phase KW - simulation KW - carbon dioxide KW - fractures KW - finite element analysis KW - fluid injection KW - pore pressure KW - propagation KW - compressibility KW - water KW - hydraulic fracturing KW - elasticity KW - numerical models KW - poroelasticity KW - fluid flow KW - mechanical properties KW - cracks KW - viscosity KW - saturation KW - cohesive zone model KW - reservoir properties KW - hydraulic conductivity KW - supercritical fluids KW - pore water KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756507108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geofluids+%28Oxford%29&rft.atitle=Fluid+effect+on+hydraulic+fracture+propagation+behavior%3B+a+comparison+between+water+and+supercritical+CO+%28sub+2%29+-like+fluid&rft.au=Zhou%2C+X%3BBurbey%2C+T+J&rft.aulast=Zhou&rft.aufirst=X&rft.date=2014-05-01&rft.volume=14&rft.issue=2&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=Geofluids+%28Oxford%29&rft.issn=14688115&rft_id=info:doi/10.1111%2Fgfl.12061 L2 - http://www.blackwellpublishing.com/journal.asp?ref=1468-8115 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 76 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-01-14 N1 - SubjectsTermNotLitGenreText - carbon dioxide; cohesive zone model; compressibility; cracks; elasticity; finite element analysis; fluid flow; fluid injection; fluid phase; fractures; hydraulic conductivity; hydraulic fracturing; mechanical properties; numerical models; pore pressure; pore water; poroelasticity; propagation; reservoir properties; saturation; simulation; supercritical fluids; viscosity; water DO - http://dx.doi.org/10.1111/gfl.12061 ER - TY - JOUR T1 - Computational Study of Surface Signature of Anthropogenic CO sub(2) at a Potential Carbon Sequestration Site, San Juan Basin AN - 1635037355; 21103283 AB - Injection of anthropogenic carbon dioxide into geologic formations is a technology that can be deployed in the relatively short term in order to avoid potential harm to the environment caused by excess CO sub(2) in the atmosphere. Success of sequestering CO sub(2) in underground reservoirs is strongly dependent on the prevention of leakage back into the atmosphere and the ability to mitigate should significant leakage occur. Both detection of leakage and reliable risk mitigation plans require a robust monitoring system. The space and time span of CO sub(2) sequestration projects is large, which results in trade-offs between cost and robustness of monitoring. In order to make a cost-effective decision without compromising monitoring effectiveness, knowledge of CO sub(2) transport in the vadose zone and seepage mechanisms into the atmosphere is essential. This study focuses on the simulations of hypothetical CO sub(2) leakage into the ~100 m thick vadose zone at an actual site in the San Juan Basin, the United States. Hypothetical leaks were assumed to occur through abandoned wellbores whose integrity had been compromised below the water table. Results show that, at the leak rates analyzed, CO sub(2) did not express itself at the wellhead for extended periods due to the extremely thick vadose zone. It was also seen that even after decades of simulated leakage, point measurements of CO sub(2) flux into the atmosphere may not reach levels distinguishable from the background. The regional seepage pattern, however, is both measurable and distinguishable. This finding can be used for designing cost-effective and robust near-surface monitoring networks and algorithms. JF - Environmental Engineering Science AU - Ogretim, Egemen Ol AU - Gray, Donald D AU - Bromhal, Grant S AD - National Energy Technology Laboratory, DOE, Morgantown, West Virginia; Department of Civil and Environmental Engineering, West Virginia University, Morgantown, West Virginia; Department of Mechanical Engineering, Gediz University, Izmir 35665, Turkey, egemen.ogretim@gediz.edu.tr Y1 - 2014/05// PY - 2014 DA - May 2014 SP - 225 EP - 231 PB - Mary Ann Liebert, Inc., 2 Madison Ave Larchmont NY 10538 United States VL - 31 IS - 5 SN - 1092-8758, 1092-8758 KW - Sustainability Science Abstracts; Environment Abstracts KW - geologic carbon sequestration KW - soil gas monitoring KW - vadose zone KW - Mitigation KW - Leakage KW - Anthropogenic factors KW - Simulation KW - Basins KW - Water table KW - Atmosphere KW - Carbon sequestration KW - USA KW - Prevention KW - Economics KW - Geology KW - Seepages KW - Carbon dioxide KW - Reservoirs KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1635037355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Engineering+Science&rft.atitle=Computational+Study+of+Surface+Signature+of+Anthropogenic+CO+sub%282%29+at+a+Potential+Carbon+Sequestration+Site%2C+San+Juan+Basin&rft.au=Ogretim%2C+Egemen+Ol%3BGray%2C+Donald+D%3BBromhal%2C+Grant+S&rft.aulast=Ogretim&rft.aufirst=Egemen&rft.date=2014-05-01&rft.volume=31&rft.issue=5&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Environmental+Engineering+Science&rft.issn=10928758&rft_id=info:doi/10.1089%2Fees.2013.0386 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-12-01 N1 - Number of references - 54 N1 - Last updated - 2015-04-16 N1 - SubjectsTermNotLitGenreText - Mitigation; Leakage; Anthropogenic factors; Water table; Basins; Simulation; Atmosphere; Carbon sequestration; Prevention; Economics; Geology; Carbon dioxide; Seepages; Reservoirs; USA DO - http://dx.doi.org/10.1089/ees.2013.0386 ER - TY - JOUR T1 - The effect of electronic structure changes in NaInO sub(2) and NaIn sub(0.9)Fe sub(0.1)O sub(2) on the photoreduction of methylene blue AN - 1540236724; 20016255 AB - Photochemical dye degradation is a promising method for organic pollutant remediation; however, this process has been limited by the efficiency of the catalyst materials with respect to photon absorption. An ideal catalyst would be capable of using as much of the solar spectrum as possible, in particular the visible region. One interesting class of materials that have the potential to provide this photoactivity is known as delafossites. These materials have the general formula ABO sub(2) and are based on the mineral CuFeO sub(2), also known as delafossite. They are especially interesting due to the ability to alter the band structure of these materials using chemical substitution. In particular, substitution on the B-site in these materials can be used to tune the physical properties of delafossites for specific applications. In this work, NaInO sub(2) and NaIn sub(0.9)Fe sub(0.1)O sub(2) have been studied and Fe substitution was found to decrease the band gap energy from 3.9 eV to 2.8 eV. The catalytic activity, measured by methylene blue dye degradation, of these delafossite materials was analysed and the reduction in band gap energy was found to result in increased visible light photoactivity. Computationally, thousands of supercells were examined in order to determine the most energetically favourable substituted structures and generate density of states plots in order to determine that the experimentally observed results were due to Fe-states increasing the energy of the highest occupied molecular orbitals. JF - Journal of materials chemistry. A, Materials for energy and sustainability AU - Lekse, Jonathan W AU - Haycock, Barry J AU - Lewis, James P AU - Kauffman, Douglas R AU - Matranga, Christopher AD - National Energy Technology Laboratory; United States Department of Energy; Pittsburgh; PA 15236; USA; +1-412-386-7312; , Jonathan.Lekse@CONTR.NETL.DOE.GOV Y1 - 2014/05// PY - 2014 DA - May 2014 SP - 9331 EP - 9337 PB - Royal Society of Chemistry VL - 2 IS - 24 SN - 2050-7488, 2050-7488 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Photochemicals KW - Bioremediation KW - Degradation KW - Energy KW - Atmospheric chemistry KW - Absorption KW - Catalysts KW - Minerals KW - Sustainability KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1540236724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.atitle=The+effect+of+electronic+structure+changes+in+NaInO+sub%282%29+and+NaIn+sub%280.9%29Fe+sub%280.1%29O+sub%282%29+on+the+photoreduction+of+methylene+blue&rft.au=Lekse%2C+Jonathan+W%3BHaycock%2C+Barry+J%3BLewis%2C+James+P%3BKauffman%2C+Douglas+R%3BMatranga%2C+Christopher&rft.aulast=Lekse&rft.aufirst=Jonathan&rft.date=2014-05-01&rft.volume=2&rft.issue=24&rft.spage=9331&rft.isbn=&rft.btitle=&rft.title=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.issn=20507488&rft_id=info:doi/10.1039%2Fc4ta00906a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Number of references - 42 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Bioremediation; Photochemicals; Degradation; Energy; Atmospheric chemistry; Absorption; Catalysts; Minerals; Sustainability DO - http://dx.doi.org/10.1039/c4ta00906a ER - TY - JOUR T1 - Laboratory formation of noncementing hydrates in sandy sediments AN - 1629939590; 2014-098643 AB - Natural hydrate-bearing sediment (HBS) predominantly exists in noncementing habit, and its limited availability for use in laboratory studies demands a time-effective and repeatable laboratory process for forming representative samples with natural accumulation habit. This study reports on a three-step laboratory process for forming noncementing methane hydrate in sandy sediments: (1) initial HBS formation under excess-gas conditions; (2) slow saline water (5 wt % CaCl (sub 2) ) injection under strictly controlled pressure-temperature (P-T) conditions; and (3) a temperature warming/cooling cycle. Changes in compressional wave velocity (V (sub p) ) of sediment, as well as P-T condition, were monitored throughout the tests. The evolution of V (sub p) , in good agreement with rock physics model calculations, suggested that the transition from cementing hydrate into noncementing hydrate occurs during saline injection as well as temperature warming/cooling cycle. The proposed process appeared to be an efficient and consistent substitute for the existing methods, to form noncementing hydrate habit in sandy sediments. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Geochemistry, Geophysics, Geosystems - G3 AU - Choi, Jeong-Hoon AU - Dai, Sheng AU - Cha, Jong-Ho AU - Seol, Yongkoo Y1 - 2014/04// PY - 2014 DA - April 2014 SP - 1648 EP - 1656 PB - American Geophysical Union and The Geochemical Society VL - 15 IS - 4 KW - sand KW - P-waves KW - calcium chloride KW - body waves KW - experimental studies KW - methane KW - gas hydrates KW - clastic sediments KW - aliphatic hydrocarbons KW - petroleum KW - elastic waves KW - alkanes KW - petroleum accumulation KW - temperature KW - laboratory studies KW - organic compounds KW - marine sediments KW - marine environment KW - sediments KW - hydrocarbons KW - seismic waves KW - saline composition KW - P-T conditions KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629939590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.atitle=Laboratory+formation+of+noncementing+hydrates+in+sandy+sediments&rft.au=Choi%2C+Jeong-Hoon%3BDai%2C+Sheng%3BCha%2C+Jong-Ho%3BSeol%2C+Yongkoo&rft.aulast=Choi&rft.aufirst=Jeong-Hoon&rft.date=2014-04-01&rft.volume=15&rft.issue=4&rft.spage=1648&rft.isbn=&rft.btitle=&rft.title=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.issn=1525-2027&rft_id=info:doi/10.1002%2F2014GC005287 L2 - http://g-cubed.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom | Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-12-04 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; body waves; calcium chloride; clastic sediments; elastic waves; experimental studies; gas hydrates; hydrocarbons; laboratory studies; marine environment; marine sediments; methane; organic compounds; P-T conditions; P-waves; petroleum; petroleum accumulation; saline composition; sand; sediments; seismic waves; temperature DO - http://dx.doi.org/10.1002/2014GC005287 ER - TY - JOUR T1 - CO sub(2) concentration and pH alters subsurface microbial ecology at reservoir temperature and pressure AN - 1566857637; 19751645 AB - The security of long-term CO sub(2) storage following geologic carbon sequestration may be impacted by biogeochemical reactions in the formation; yet little understanding exists about the impact of CO sub(2) gradients on microorganisms that drive biogeochemistry in the deep subsurface. The effect of CO sub(2) gradients on the microbial community from a brine aquifer was examined at reservoir pressure (14 MPa) and temperature (40 degree C). The community was exposed to pCO sub(2) at 0, 0.1, 1.4 and 14 MPa for up to 56 days and was examined using 16S rRNA gene clone libraries and qPCR. Diversity indices (equitability) were also determined. In addition, the effect of lowered pH without CO sub(2) exposure was examined. Exposure to CO sub(2) resulted in a decrease in microbial diversity and a decrease in 16S rRNA gene concentrations. After 56 days, no 16S genes were recovered following exposure to 1.4 MPa pCO sub(2) or greater. Exposure to 0.1 MPa pCO sub(2) resulted in 16S gene concentrations an order of magnitude less than 0 MPa pCO sub(2). The equitability of 0 MPa exposure (0.54) decreased with 0.1 MPa exposure to 0.29. Microbial community with the lowered pH (pH = 4.4) and 0 MPa pCO sub(2) resulted in 5 orders of magnitude increased 16S gene concentration than reactors with CO sub(2) exposure, indicating that CO sub(2) was detrimental independent of pH. This suggests that even buffered reservoirs may have a decreased microbial population due to injected CO sub(2). Halotolerant strains Halomonasand Marinobacterappeared to be the most tolerant to CO sub(2) exposure and decreased pH. This is the first study to examine the initial microbial community response to a gradient of CO sub(2) that would follow geologic carbon sequestration. JF - RSC Advances AU - Gulliver, Djuna M AU - Lowry, Gregory V AU - Gregory, Kelvin B AD - Office of Research & Development; National Energy Technology Laboratory; Pittsburgh; PA; USA; , kelvin@.cmu.edu Y1 - 2014/04// PY - 2014 DA - Apr 2014 SP - 17443 EP - 17453 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 4 IS - 34 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Aquifers KW - Temperature effects KW - Biogeochemistry KW - Salinity tolerance KW - Diversity indices KW - Carbon KW - Bioreactors KW - Microorganisms KW - Pressure KW - Carbon dioxide KW - rRNA 16S KW - pH effects KW - Brines KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566857637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=RSC+Advances&rft.atitle=CO+sub%282%29+concentration+and+pH+alters+subsurface+microbial+ecology+at+reservoir+temperature+and+pressure&rft.au=Gulliver%2C+Djuna+M%3BLowry%2C+Gregory+V%3BGregory%2C+Kelvin+B&rft.aulast=Gulliver&rft.aufirst=Djuna&rft.date=2014-04-01&rft.volume=4&rft.issue=34&rft.spage=17443&rft.isbn=&rft.btitle=&rft.title=RSC+Advances&rft.issn=2046-2069&rft_id=info:doi/10.1039%2Fc4ra02139h LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 73 N1 - Last updated - 2015-10-28 N1 - SubjectsTermNotLitGenreText - Temperature effects; Aquifers; Biogeochemistry; Salinity tolerance; Diversity indices; Carbon; Bioreactors; Microorganisms; Carbon dioxide; Pressure; pH effects; rRNA 16S; Brines DO - http://dx.doi.org/10.1039/c4ra02139h ER - TY - JOUR T1 - The Devonian Marcellus Shale and Millboro Shale AN - 1535203102; 2014-042120 AB - The recent development of unconventional oil and natural gas resources in the United States builds upon many decades of research, which included resource assessment and the development of well completion and extraction technology. The Eastern Gas Shales Project, funded by the U.S. Department of Energy in the 1980s, investigated the gas potential of organic-rich, Devonian black shales in the Appalachian, Michigan, and Illinois basins. One of these eastern shales is the Middle Devonian Marcellus Shale, which has been extensively developed for natural gas and natural gas liquids since 2007. The Marcellus is one of the basal units in a thick Devonian shale sedimentary sequence in the Appalachian basin. The Marcellus rests on the Onondaga Limestone throughout most of the basin, or on the time-equivalent Needmore Shale in the southeastern parts of the basin. Another basal unit, the Huntersville Chert, underlies the Marcellus in the southern part of the basin. The Devonian section is compressed to the south, and the Marcellus Shale, along with several overlying units, grades into the age-equivalent Millboro Shale in Virginia. The Marcellus-Millboro interval is far from a uniform slab of black rock. This field trip will examine a number of natural and engineered exposures in the vicinity of the West Virginia-Virginia state line, where participants will have the opportunity to view a variety of sedimentary facies within the shale itself, sedimentary structures, tectonic structures, fossils, overlying and underlying formations, volcaniclastic ash beds, and to view a basaltic intrusion. JF - GSA Field Guide AU - Soeder, Daniel J AU - Enomoto, Catherine B AU - Chermak, John A Y1 - 2014/03// PY - 2014 DA - March 2014 SP - 129 EP - 160 PB - Geological Society of America, Boulder, CO VL - 35 KW - United States KW - nomenclature KW - Mississippian KW - lithostratigraphy KW - Laurentia KW - technology KW - secondary structures KW - volcanic rocks KW - development KW - natural gas KW - igneous rocks KW - guidebook KW - petroleum KW - field trips KW - road log KW - evaluation KW - soft sediment deformation KW - black shale KW - volcaniclastics KW - sedimentary rocks KW - Appalachian Basin KW - Marcellus Shale KW - basalts KW - Millboro Shale KW - sedimentary structures KW - Onondaga Limestone KW - West Virginia KW - North America KW - Virginia KW - septaria KW - Paleozoic KW - Carboniferous KW - gas shale KW - Eastern U.S. KW - paleogeography KW - orogeny KW - concretions KW - New York KW - intrusions KW - Middle Devonian KW - Devonian KW - Needmore Shale KW - reconstruction KW - Rheic Ocean KW - Pennsylvania KW - clastic rocks KW - 29A:Economic geology, geology of energy sources KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535203102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=GSA+Field+Guide&rft.atitle=The+Devonian+Marcellus+Shale+and+Millboro+Shale&rft.au=Soeder%2C+Daniel+J%3BEnomoto%2C+Catherine+B%3BChermak%2C+John+A&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2014-03-01&rft.volume=35&rft.issue=&rft.spage=129&rft.isbn=9780813700359&rft.btitle=&rft.title=GSA+Field+Guide&rft.issn=&rft_id=info:doi/10.1130%2F2014.0035%2805%29 L2 - http://fieldguides.gsapubs.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 80 N1 - PubXState - CO N1 - Document feature - illus. incl. charts, sects., sketch maps N1 - Last updated - 2014-06-13 N1 - CODEN - #05176 N1 - SubjectsTermNotLitGenreText - Appalachian Basin; basalts; black shale; Carboniferous; clastic rocks; concretions; development; Devonian; Eastern U.S.; evaluation; field trips; gas shale; guidebook; igneous rocks; intrusions; Laurentia; lithostratigraphy; Marcellus Shale; Middle Devonian; Millboro Shale; Mississippian; natural gas; Needmore Shale; New York; nomenclature; North America; Onondaga Limestone; orogeny; paleogeography; Paleozoic; Pennsylvania; petroleum; reconstruction; Rheic Ocean; road log; secondary structures; sedimentary rocks; sedimentary structures; septaria; soft sediment deformation; technology; United States; Virginia; volcanic rocks; volcaniclastics; West Virginia DO - http://dx.doi.org/10.1130/2014.0035(05) ER - TY - JOUR T1 - Analysis of spatial patterns and trends of subsurface geology in the Gulf of Mexico to improve offshore hydrocarbon production risk assessments AN - 1803772700; 2016-059607 JF - Ocean Sciences Meeting AU - Rose, Kelly AU - Bauer, Jennifer AU - Disenhof, Corinne AU - Mark-Moser, Mackenzie AU - Sharp, Jonathan AU - Briscoe, Mel AU - Itsweire, Eric Y1 - 2014/02// PY - 2014 DA - February 2014 EP - Abstract 18042 PB - American Geophysical Union (AGU), [varies] VL - 17 KW - models KW - patterns KW - offshore KW - risk assessment KW - petroleum KW - North Atlantic KW - heterogeneity KW - production KW - Gulf of Mexico KW - Atlantic Ocean KW - reservoir rocks KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803772700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ocean+Sciences+Meeting&rft.atitle=Analysis+of+spatial+patterns+and+trends+of+subsurface+geology+in+the+Gulf+of+Mexico+to+improve+offshore+hydrocarbon+production+risk+assessments&rft.au=Rose%2C+Kelly%3BBauer%2C+Jennifer%3BDisenhof%2C+Corinne%3BMark-Moser%2C+Mackenzie%3BSharp%2C+Jonathan%3BBriscoe%2C+Mel%3BItsweire%2C+Eric&rft.aulast=Rose&rft.aufirst=Kelly&rft.date=2014-02-01&rft.volume=17&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Ocean+Sciences+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2014 ocean sciences meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-07-14 N1 - CODEN - #07653 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; Gulf of Mexico; heterogeneity; models; North Atlantic; offshore; patterns; petroleum; production; reservoir rocks; risk assessment ER - TY - JOUR T1 - The effect of cohesive forces on the fluidization of aeratable powders AN - 1524398349; 19634236 AB - The effects of cohesive forces of van der Waals type in the fluidization/defluidization of aeratable type A powders in the Geldart classification are numerically investigated. The effects of friction and particle-size distribution (PSD) on some design-significant parameters, such as minimum fluidization and bubbling velocities, are also investigated. For these types of particles, cohesive forces are observed as necessary to fully exhibit the role friction plays in commonly observed phenomena, such as pressure overshoot and hysteresis around minimum fluidization. This study also shows that a full-experimental PSD consisting of a dozen particle sizes may be sufficiently represented by a few particle diameters. Reducing the number of particle types may benefit the continuum approach, which is based on the kinetic theory of granular flow, by reducing computational expense, while still maintaining the accuracy of the predictions. Published 2013 American Institute of Chemical Engineers AIChE J 60: 473-484, 2014 JF - AICHE Journal AU - Galvin, Janine E AU - Benyahia, Sofiane AD - National Energy Technology Laboratory, Albany, OR, 97321. Y1 - 2014/02// PY - 2014 DA - Feb 2014 SP - 473 EP - 484 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 60 IS - 2 SN - 0001-1541, 0001-1541 KW - Environment Abstracts KW - cohesive forces KW - Geldart A powder KW - fluidization cycle KW - polydispersity KW - friction forces KW - discrete particle method KW - Prediction KW - Fluidization KW - Classification KW - Kinetics KW - Velocity KW - Hysteresis KW - Particulates KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524398349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AICHE+Journal&rft.atitle=The+effect+of+cohesive+forces+on+the+fluidization+of+aeratable+powders&rft.au=Galvin%2C+Janine+E%3BBenyahia%2C+Sofiane&rft.aulast=Galvin&rft.aufirst=Janine&rft.date=2014-02-01&rft.volume=60&rft.issue=2&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=AICHE+Journal&rft.issn=00011541&rft_id=info:doi/10.1002%2Faic.14307 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Prediction; Classification; Fluidization; Kinetics; Velocity; Hysteresis; Particulates DO - http://dx.doi.org/10.1002/aic.14307 ER - TY - JOUR T1 - Geochemical characterization and assessment of migration or mixing of Upper and Middle Devonian produced waters following horizontal drilling and hydraulic fracturing AN - 1793206392; 2016-048233 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Capo, Rosemary C AU - Kolesar Kohl, Courtney A AU - Stewart, Brian W AU - Wall, Andrew AU - Schroeder, Karl T AU - Hammack, Richard W AU - Guthrie, George D AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 339 PB - Goldschmidt Conference, [varies] VL - 24 SN - 1042-7287, 1042-7287 KW - United States KW - horizontal drilling KW - isotopes KW - natural gas KW - halogens KW - characterization KW - petroleum KW - stable isotopes KW - oil wells KW - barium KW - mixing KW - Marcellus Shale KW - directional drilling KW - drilling KW - geochemistry KW - Upper Devonian KW - hydraulic fracturing KW - alkaline earth metals KW - radium KW - Paleozoic KW - isotope ratios KW - alkali metals KW - sodium KW - bromine KW - Sr-87/Sr-86 KW - Middle Devonian KW - Devonian KW - metals KW - brines KW - strontium KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793206392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Geochemical+characterization+and+assessment+of+migration+or+mixing+of+Upper+and+Middle+Devonian+produced+waters+following+horizontal+drilling+and+hydraulic+fracturing&rft.au=Capo%2C+Rosemary+C%3BKolesar+Kohl%2C+Courtney+A%3BStewart%2C+Brian+W%3BWall%2C+Andrew%3BSchroeder%2C+Karl+T%3BHammack%2C+Richard+W%3BGuthrie%2C+George+D%3BAnonymous&rft.aulast=Capo&rft.aufirst=Rosemary&rft.date=2014-01-01&rft.volume=24&rft.issue=&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2014 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - Last updated - 2016-06-02 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; barium; brines; bromine; characterization; Devonian; directional drilling; drilling; geochemistry; halogens; horizontal drilling; hydraulic fracturing; isotope ratios; isotopes; Marcellus Shale; metals; Middle Devonian; mixing; natural gas; oil wells; Paleozoic; petroleum; radium; sodium; Sr-87/Sr-86; stable isotopes; strontium; United States; Upper Devonian ER - TY - JOUR T1 - The validation of the Setschenow equation for selected petroleum hydrocarbons in hypersaline solutions AN - 1793204800; 2016-048200 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Burant, A S AU - Lowry, G V AU - Hakala, J A AU - Karamalidis, A K AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 306 PB - Goldschmidt Conference, [varies] VL - 24 SN - 1042-7287, 1042-7287 KW - carbon sequestration KW - Setschenow equation KW - solutions KW - natural gas KW - chromatograms KW - gas chromatograms KW - petroleum KW - equations KW - reservoir rocks KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793204800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=The+validation+of+the+Setschenow+equation+for+selected+petroleum+hydrocarbons+in+hypersaline+solutions&rft.au=Burant%2C+A+S%3BLowry%2C+G+V%3BHakala%2C+J+A%3BKaramalidis%2C+A+K%3BAnonymous&rft.aulast=Burant&rft.aufirst=A&rft.date=2014-01-01&rft.volume=24&rft.issue=&rft.spage=306&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2014 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-06-02 N1 - SubjectsTermNotLitGenreText - carbon sequestration; chromatograms; equations; gas chromatograms; natural gas; petroleum; reservoir rocks; Setschenow equation; solutions ER - TY - JOUR T1 - Effects of coal fly ash and shale drill cutting amendments on green roof plant growth AN - 1689590989; 2015-057061 AB - Green roofs are layers of planting material and plants on building roofs that retain, filter, treat, use, and reduce storm water runoff. The most commonly used primary components of growth substrates are expanded shales and clays, which are produced by heating in a high-temperature rotary kiln, requiring significant energy input. In this study, we examined the potential supplementation of conventional green roof growth substrates using available coal combustion by-products (CCBs) such as fly ash, and waste Marcellus gas well drill cuttings. These materials may represent satisfactory replacements for a fraction of the less energy efficient growth substrate materials. They also have the potential to introduce unacceptable levels of inorganic and organic contaminants to roof runoff, adversely modify soil and runoff pH, and limit plant growth. Over 50 fly and bottom ashes from coal combustion power plants were leached with natural rainwater - these produced a wide range in pH and metal concentrations and varied in their ability to retain water. Soluble components of CCBs were generally released in distinctive and explainable patterns based on the initial pH of the starting material and could be grouped by their relative abundance in solution. Soluble Ca, S, Na, K, Sr, and Ba were found in greatest abundance, with Ca and Na release being primarily associated with high pH CCB materials. A wide variety of trace elements, including Mn, Cr, Mo, Co, As, Li, Cu, Sn, U, Cd and Fe, were detected. Heavy metal release was usually associated with low pH CCB materials, whereas As and Cr were released from high pH materials. Lettuce seed germination was optimal in circumneutral pH soil mixtures produced from neutral pH CCBs or from appropriate mixtures of low and high pH CCBs. Marcellus shale drill cuttings were the only soil amendments to completely inhibit plant germination, possibly due to incorporated organic drilling mud components. Plant pot studies on a building green roof demonstrated the ability of sedum cuttings to become established in selected CCB-amended substrate mixtures adjusted to produce a circumneutral pH. JF - Abstracts with Programs - Geological Society of America AU - Jain, Jinesh AU - Edenborn, Harry M AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 717 PB - Geological Society of America (GSA), Boulder, CO VL - 46 IS - 6 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689590989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+coal+fly+ash+and+shale+drill+cutting+amendments+on+green+roof+plant+growth&rft.au=Jain%2C+Jinesh%3BEdenborn%2C+Harry+M%3BAnonymous&rft.aulast=Jain&rft.aufirst=Jinesh&rft.date=2014-01-01&rft.volume=46&rft.issue=6&rft.spage=717&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2014 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Last updated - 2015-06-18 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Spatial analysis of charcoal hearth distribution around a Pennsylvania iron furnace AN - 1629947390; 2014-097037 AB - Charcoal iron production was a major industry in Pennsylvania from the early 1700s to the mid-1800s. The charcoal from approximately one acre of woodland was needed to fuel the average iron furnace for one day, so the availability of forested land and the supply of charcoal were factors that frequently limited the life of a furnace. Many individual charcoal hearths, which were flat, cleared areas where cut wood was stacked and prepared for charcoal production, are known to be present on the mountain slopes around remaining furnace ruins, but relatively few have been specifically identified. The community of Greenwood Furnace in northeastern Huntingdon County, Pennsylvania, was a busy industrial complex based around charcoal iron production, and required the production of large amounts of charcoal from the surrounding forests. In our study, many charcoal hearths were readily viewed in shaded relief images of the LiDAR digital elevation model (DEM) as circular features resembling small craters. The LiDAR data was primarily acquired to produce an accurate and high-resolution bare earth model of Pennsylvania (3.2-foot pixel, 1-meter equivalent raster GeoTIFF DEM). Approximately 500 historic charcoal hearths were readily identified in a 10359 hectare (40 square mile) area surrounding Greenwood Furnace and were manually identified as shaded relief images. Strings of hearths were readily evident along similar topographic contour lines on the adjacent hillsides. Adjusting the sun angle for azimuth and altitude was very effective in confirming hearth sites. In this study, we employed various methods of spatial analysis such as pattern and cluster analysis, to evaluate the observed distribution of relic charcoal hearth sites. These results are related to the regional topography and the economics of charcoal transportation as they influenced the life of the iron furnace. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, H M AU - Sams, James AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 80 PB - Geological Society of America (GSA), Boulder, CO VL - 46 IS - 2 SN - 0016-7592, 0016-7592 KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629947390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Spatial+analysis+of+charcoal+hearth+distribution+around+a+Pennsylvania+iron+furnace&rft.au=Edenborn%2C+H+M%3BSams%2C+James%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=H&rft.date=2014-01-01&rft.volume=46&rft.issue=2&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014NE/webprogram/Paper236346.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 49th annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-12-04 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Use of coal combustion by-products and shale drill cuttings as supplements for green roof growth substrates AN - 1629944233; 2014-094388 AB - Green roofs are layers of planting material and plants on roofs that retain, filter, treat, use, and reduce storm water runoff. The benefits of green roofs can include: 1) The capture and evaporation of precipitation, reducing the volume and speed of storm water runoff leaving the site; 2) The lowering of the temperature of storm water runoff, which helps maintain the cool stream temperatures needed by fish; 3) The improvement of air quality by reducing smog; 4) The reduction of "heat island" effects by cooling of the ambient air; 5) Increasing the amount of vegetation and wildlife habitat; 6) Thermal insulation of existing roofs, with lower cooling and heating costs for buildings; and 7) Longer lifespans of existing roofs due to reduced exposure to the weather. Green roof growth substrates must be relatively light-weight, retain moisture, be composed of non-toxic materials that do not pollute the associated rainfall and runoff, and allow plant growth. The most commonly used substrates are produced by heating in a high-temperature rotary kiln, which requires significant energy input. We are examining the impacts of supplementing conventional green roof growth substrates with available waste products from coal-fired power plants and gas well operations, such as fly and bottom ashes and drill cuttings. These materials may represent satisfactory substitutes for a fraction of less energy efficient growth substrate materials. However, they also have the potential to introduce unacceptable levels of inorganic and organic contaminants to roof runoff, adversely modify soil and runoff pH, and limit plant growth. The screening of over 50 fly and bottom ashes from coal combustion power plants leached with natural rainwater showed a wide range in resulting pHs, metal concentrations, and ability to retain water. Drill cuttings from a Marcellus gas well in southwestern PA likewise indicated the potential mobility of several heavy metals and oxyanions, including As, Cd, Cr, Pb, Se and U. Preliminary results of plant toxicity and growth studies on mixtures of these materials and growth substrate are presented, and scenarios for the geochemical immobilization of potentially toxic compounds via the control of pH and other variables are discussed. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, H M AU - Jain, Jinesh AU - Thomas, Christine AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 101 PB - Geological Society of America (GSA), Boulder, CO VL - 46 IS - 2 SN - 0016-7592, 0016-7592 KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629944233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Use+of+coal+combustion+by-products+and+shale+drill+cuttings+as+supplements+for+green+roof+growth+substrates&rft.au=Edenborn%2C+H+M%3BJain%2C+Jinesh%3BThomas%2C+Christine%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=H&rft.date=2014-01-01&rft.volume=46&rft.issue=2&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014NE/webprogram/Paper236315.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 49th annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-12-04 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Use of NDIR sensors for real-time monitoring of CO (sub 2) levels in coal mine drainage discharge AN - 1623272316; 2014-091491 AB - The chemical weathering of limestone in abandoned coal mines by both carbonic and sulfuric acids can lead to aqueous concentrations of dissolved CO (sub 2) much higher than those predicted to be in equilibrium with the atmosphere. After water is discharged from a mine portal, dissolved CO (sub 2) degasses rapidly as a function of distance and topography and becomes more aerated in the process. The accurate monitoring of CO (sub 2) in such environments by conventional methods, such as alkalinity titration, is difficult due to the geochemical instability of the water during sample processing. Earlier work in our laboratories showed that a volume expansion method used in the beverage industry worked well in determining CO (sub 2) in mine waters under field conditions, but it still suffered from the need to collect grab samples and transfer them to a carbonation meter, a step that results in the loss of some CO (sub 2) . Additionally, the ability to collect CO (sub 2) data remotely to determine natural fluctuations over time is desirable. Here we report on the preliminary use of a non-dispersive infrared (NDIR) CO (sub 2) sensor enclosed in a gas-permeable membrane to make measurements directly in the discharge of an abandoned bituminous coal mine in southwestern PA. Results showed that this method was superior to both alkalinity titration and volume expansion as a method of CO (sub 2) detection in this environment. Long-term measurements in the fluctuation of dissolved CO (sub 2) were possible, especially in waters nearest the portal, where the active precipitation of iron did not interfere with gas transfer across the synthetic membrane covering the NDIR sensor. Additional examples of the benefits of this analytical approach will be presented. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, H M AU - Vesper, Dorothy J AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 124 PB - Geological Society of America (GSA), Boulder, CO VL - 46 IS - 2 SN - 0016-7592, 0016-7592 KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623272316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Use+of+NDIR+sensors+for+real-time+monitoring+of+CO+%28sub+2%29+levels+in+coal+mine+drainage+discharge&rft.au=Edenborn%2C+H+M%3BVesper%2C+Dorothy+J%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=H&rft.date=2014-01-01&rft.volume=46&rft.issue=2&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014NE/webprogram/Paper236225.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 49th annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-11-13 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Geochemical analysis of time-lapse flowback water data from hydraulically fractured Marcellus Shale AN - 1623272266; 2014-091505 AB - The chemistry of flowback waters produced by hydraulic fracturing of the Marcellus shale in Pennsylvania is a current topic of research because of the implications for treatment. This paper presents time-lapse inorganic water chemistry data sampled from three adjacent horizontal natural gas wells for ten days directly after hydraulic fracturing and again after forty-four days. These data are compared to historic well data from conventional Paleozoic oil and gas reservoirs in Pennsylvania. Similarities between the two data sets indicate that the flowback water sampled for this study is a mixture of in-situ brines and drilling fluids. Alkalinity (as CaCO (sub 3) ) generally decreases in wells 1 and 2 (range: 152-410 mg/L ). In well 3, alkalinity decreases from 403 mg/L to 267 mg/L and then spikes to 903 mg/L. The concentration of most inorganic constituents (Ba, Br, Ca, Cl, K, Li, Mn, Na, S, Sr) increases steadily in all wells. Exceptions to this trend are Fe, Mg, and SO (sub 4) . During the first ten days, Fe concentrations in wells 1 and 2, rise and fall twice. Concentrations range from 0.496 mg/L to 84.5 mg/L. After the second fall, Fe concentrations in the wells increase by day forty-four to 72.2 mg/L and 87.3 mg/L, respectively. Fe concentration in well 3 rises from 11.5 mg/L to 94.2 mg/L, with a rapid increase during day seven. Mg concentrations in all three wells rise and then fall (range: 165- 585 mg/L) within the first four days and then increase by day forty-four (range: 937-985 mg/L). SO (sub 4) concentrations increase rapidly and then decrease by day forty-four (range: 8.10-42.5 g/L). SO (sub 4) M/S (sub total) M ratios indicate that SO (sub 4) accounts for 4.70% to 54.8% of S (sub total) .x/Br ratios show similar trends to concentration, suggesting that the reaction between in-situ brines and drilling fluids may not represent a simple dilution as previously believed. JF - Abstracts with Programs - Geological Society of America AU - Scheuermann, Peter AU - Hakala, J Alexandra AU - Lopano, Christina L AU - Anonymous Y1 - 2014 PY - 2014 DA - 2014 SP - 126 PB - Geological Society of America (GSA), Boulder, CO VL - 46 IS - 2 SN - 0016-7592, 0016-7592 KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623272266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geochemical+analysis+of+time-lapse+flowback+water+data+from+hydraulically+fractured+Marcellus+Shale&rft.au=Scheuermann%2C+Peter%3BHakala%2C+J+Alexandra%3BLopano%2C+Christina+L%3BAnonymous&rft.aulast=Scheuermann&rft.aufirst=Peter&rft.date=2014-01-01&rft.volume=46&rft.issue=2&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014NE/webprogram/Paper236079.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 49th annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-11-13 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - An experimental and computational investigation of the oxygen storage properties of BaLnFe sub(2)O sub(5+ delta ) and BaLnCo sub(2)O sub(5+ delta ) (Ln = La, Y) perovskites AN - 1500797847; 19052983 AB - One interesting class of materials for oxygen storage applications are double perovskite oxides due to their ability to rapidly store and release oxygen. Previously, the double perovskite BaYMn sub(2)O sub(5+ delta ) was shown to rapidly and reversibly store and release oxygen with unprecedented kinetics. In this work, four double perovskite materials, BaLaFe sub(2)O sub(5+ delta ), BaLaCo sub(2)O sub(5+ delta ), BaYCo sub(2)O sub(5+ delta ), and BaYFe sub(2)O sub(5+ delta ), were synthesized and characterized. TGA experimental results for all four samples demonstrate rapid and reversible oxygen storage. The two Fe-containing compounds are the most stable for multiple adsorption/desorption cycles with both nitrogen/air and hydrogen/air at multiple temperatures and have been demonstrated to oxidize methane. JF - Journal of materials chemistry. A, Materials for energy and sustainability AU - Lekse, Jonathan W AU - Natesakhawat, Sittichai AU - Alfonso, Dominic AU - Matranga, Christopher AD - National Energy Technology Laboratory; United States Department of Energy; P. O. Box 10940; Pittsburgh; PA 15236; USA; +1-412-386-7312; , Jonathan.Lekse@CONTR.NETL.DOE.GOV Y1 - 2014/01// PY - 2014 DA - Jan 2014 SP - 2397 EP - 2404 PB - Royal Society of Chemistry VL - 2 IS - 7 SN - 2050-7488, 2050-7488 KW - Sustainability Science Abstracts KW - Storage KW - Oxygen KW - Methane KW - Desorption KW - Kinetics KW - Energy KW - Temperature KW - Adsorption KW - Hydrogen KW - Sustainability KW - Nitrogen KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1500797847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.atitle=An+experimental+and+computational+investigation+of+the+oxygen+storage+properties+of+BaLnFe+sub%282%29O+sub%285%2B+delta+%29+and+BaLnCo+sub%282%29O+sub%285%2B+delta+%29+%28Ln+%3D+La%2C+Y%29+perovskites&rft.au=Lekse%2C+Jonathan+W%3BNatesakhawat%2C+Sittichai%3BAlfonso%2C+Dominic%3BMatranga%2C+Christopher&rft.aulast=Lekse&rft.aufirst=Jonathan&rft.date=2014-01-01&rft.volume=2&rft.issue=7&rft.spage=2397&rft.isbn=&rft.btitle=&rft.title=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.issn=20507488&rft_id=info:doi/10.1039%2Fc3ta13257a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Number of references - 47 N1 - Last updated - 2015-06-26 N1 - SubjectsTermNotLitGenreText - Storage; Methane; Oxygen; Desorption; Energy; Kinetics; Adsorption; Temperature; Hydrogen; Sustainability; Nitrogen DO - http://dx.doi.org/10.1039/c3ta13257a ER - TY - JOUR T1 - Mechanisms of CO2 interaction with montmorillonite AN - 1703689722; 2015-078151 AB - Improved understanding of basic fluid-rock interactions can lead to more accurate models of the coupled fluid-flow and geomechanics in engineered geological systems. We studied carbon dioxide (CO2) interaction with source clay samples from The Clay Minerals Society. The manometric, infrared (IR) and X-ray diffraction (XRD) data indicated that montmorillonite can permanently trap CO2 molecules in its interlayer, after dynamic exposure to supercritical CO2. Such trapping is quite secure and appears to result in partial carbonate formation. Molecular dynamics simulations were carried out to investigate CO2 intercalation into the interlayer and its interaction with interlayer species. Previously reported results of simulations using simplified smectite models suggested that the experimentally observed red shift of the asymmetric-stretch vibrational mode for the trapped carbon dioxide can be attributed to induced polarization of the CO2 molecule by the interlayer water molecules. Modified smectite models were designed to account for the naturally occurring structural disorder that allows guest molecules to occupy localized interlamellar voids. In such models, energy dependences and structural rearrangements of the interlayer species are governed by rotational misalignment in turbostratically disordered clay. CO2 invasion in the interlayer disrupts the long-range ordering of water molecules and cations thus forcing the system to adopt energetically unfavorable configurations. New findings indicate that interaction between intercalated CO2 and H2O is limited and, with the increasing interlayer hydration, CO2 preferentially accumulates in interlamellar voids. The vibrational spectra produced by the new model, assuming that clay systems can exist in fractional hydration states, show either a combination of undisturbed and red-shifted asymmetric-stretch modes or a broad peak consistent with the multiple smeared peaks, which explain the multi-mode features that have appeared in experimental IR spectra. JF - American Geophysical Union Fall Meeting AU - Romanov, V AU - Myshakin, Evgeniy M (Yevgeniy M) AU - Howard, Bret AU - Guthrie, George AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract MR33B EP - 2339 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703689722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mechanisms+of+CO2+interaction+with+montmorillonite&rft.au=Romanov%2C+V%3BMyshakin%2C+Evgeniy+M+%28Yevgeniy+M%29%3BHoward%2C+Bret%3BGuthrie%2C+George%3BAnonymous&rft.aulast=Romanov&rft.aufirst=V&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 ER - TY - JOUR T1 - Monitoring the interaction of hydraulic fracturing fluid with Marcellus Shale using Sr isotopes; a comparison of laboratory experiments with field scale observations AN - 1696873462; 2015-066531 AB - Strontium isotopes have the potential to be an effective tool for differentiating Marcellus Shale derived-fluids from other sources in surface and ground waters (Chapman et al. 2012, doi: 10.1021/es204005g). Water that is co-produced during gas extraction is likely influenced by fluid/rock interactions during hydraulic fracturing (HF) and monitoring changes in Sr isotope ratios can provide insight into reactions occurring within the shale formation. However, questions persist as to what controls the Sr isotopic composition of Marcellus Shale fluids, especially during HF. Here we compare laboratory experiments, simulating the dissolution of the Marcellus Shale during HF, with a time-series of water samples taken from a Marcellus Shale gas wells after HF has occurred. For the laboratory experiments, a core sample of Marcellus Shale from Greene County, PA was crushed and placed into a high P and T reaction vessel. Solutions were added in two different experiments: one with synthetic brine, and another using brine+HF fluid. The HF fluid was made up of components listed on fracfocus.org. Experiments were run for approximately 16 days at 27.5 MPa and 130 degrees C. Aqueous samples were periodically removed for analysis and Sr isotope ratios were measured by MC-ICP-MS. Using just brine, the pH of the solution decreased from 7.6 to 5.3 after 24 hrs, then reached a steady state at approximately 6.1. Sr/Ca molar ratios in the fluid started at 2.3 after 24 hours and decreased to 1.8 over approximately 16 days. During this time only 6% of the total inorganic carbon (TIC) dissolved from the shale. The epsilon Sr values started at +43.2 and decreased to +42.4. In the experiment using brine+HF fluid, the pH started at 1.8 and rose slowly to a steady value of 5.6 by day 6. The Sr and Ca concentrations were higher than the brine experiment, but the Sr/Ca ratios remained lower at approximately 0.3 through the experiment. The increased Ca release, as well as the dissolution of over 60% of the TIC, suggests the dissolution of a carbonate mineral component due to the HF fluid. The epsilon Sr started at +36.5 at 24 hours and decreased to +35.5 at the end. At the field scale, the Sr/Ca molar ratios in produced water samples collected from four hydraulically fractured Marcellus Shale gas well over a 2 to 3 year period had median values of 0.07 to 0.08. The epsilon Sr values were also lower than the laboratory experiments with median values ranging from +26.6 to +31.3. Differences in the Sr isotopic results between the laboratory experiments, in combination with the TIC data, suggest the presence of at least two distinct Sr reservoirs in the sample: 1) water-soluble or exchangeable Sr, and 2) Sr incorporated into carbonate minerals. The lower epsilon Sr values using brine+HF fluid may be explained by the increased dissolution of carbonates. These results suggest that carbonate minerals within the Marcellus Shale may help control Sr isotopic composition of produced waters from these formations. However, deviations in Sr isotope values measured at the field sites may suggest an additional Sr source, such as interaction with other fluids within the formation. JF - American Geophysical Union Fall Meeting AU - Wall, A J AU - Hakala, A AU - Marcon, V AU - Joseph, C AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H52A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696873462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Monitoring+the+interaction+of+hydraulic+fracturing+fluid+with+Marcellus+Shale+using+Sr+isotopes%3B+a+comparison+of+laboratory+experiments+with+field+scale+observations&rft.au=Wall%2C+A+J%3BHakala%2C+A%3BMarcon%2C+V%3BJoseph%2C+C%3BAnonymous&rft.aulast=Wall&rft.aufirst=A&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Integrated assessment modeling for carbon storage risk and uncertainty quantification AN - 1696873232; 2015-066383 AB - The National Risk Assessment Partnership (NRAP) has developed tools to perform quantitative risk assessment at site-specific locations for long-term carbon storage. The approach that is being used is to divide the storage and containment system into components (e.g., reservoirs, seals, wells, groundwater aquifers), to develop detailed models for each component, to generate reduced order models (ROMs) based on the detailed models, and to reconnect the reduced order models within an integrated assessment model (IAM). CO2-PENS, developed at Los Alamos National Lab, is being used as the IAM for the simulations in this study. The benefit of this approach is that simulations of the complete system can be generated on a relatively rapid time scale so that Monte Carlo simulation can be performed. In this study, hundreds of thousands of runs of the IAMs have been generated to estimate likelihoods of the quantity of CO2 released to the atmosphere, size of aquifer impacted by pH, size of aquifer impacted by TDS, and size of aquifer with different metals concentrations. Correlations of the output variables with different reservoir, seal, wellbore, and aquifer parameters have been generated. Importance measures have been identified, and inputs have been ranked in the order of their impact on the output quantities. Presentation will describe the approach used, representative results, and implications for how the Monte Carlo analysis is implemented on uncertainty quantification. JF - American Geophysical Union Fall Meeting AU - Bromhal, G S AU - Dilmore, R AU - Pawar, R AU - Stauffer, P H AU - Gastelum, J AU - Oldenburg, C M AU - Zhang, Y AU - Chu, S AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H32G EP - 03 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696873232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Integrated+assessment+modeling+for+carbon+storage+risk+and+uncertainty+quantification&rft.au=Bromhal%2C+G+S%3BDilmore%2C+R%3BPawar%2C+R%3BStauffer%2C+P+H%3BGastelum%2C+J%3BOldenburg%2C+C+M%3BZhang%2C+Y%3BChu%2C+S%3BAnonymous&rft.aulast=Bromhal&rft.aufirst=G&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evaluating the performance of hydraulically-fractured shale gas resources in the Appalachian Basin AN - 1696872880; 2015-066530 AB - Evaluating the performance of engineered-natural systems, such as hydraulically-fractured shales associated with natural gas recovery, depends on an understanding of fracture growth within and outside of the target shale formation, as well as the potential for gas and fluids to migrate to other subsurface resources or underground sources of drinking water. The NETL-Regional University Alliance (NETL-RUA) has a broad research portfolio connected with development of hydraulically-fractured shale resources in the Appalachian Basin. Through a combined field, experimental, modeling, and existing data evaluation effort, the following questions are being addressed: 1) Which subsurface features control the extent to which fractures migrate out of the target fracture zone? 2) Can we improve methods for analyzing natural geochemical tracers? What combination of natural and synthetic tracers can best be used to evaluate subsurface fluid and gas migration? 3) How is wellbore integrity affected by existing shallow gas? Can we predict how shallow groundwater hydrology changes due to drilling? 4) Where are existing wellbores and natural fractures located? What field methods can be used to identify the location of existing wells? To date the NETL-RUA team has focused on four key areas: fracture growth, natural isotopic tracers, impacts of well drilling on shallow hydrology, and statistics on wellbores (locations and conditions). We have found that fracture growth is sensitive to overburden geomechanical features, and that the maximum fracture height outside of the Marcellus Shale aligns with prior assessments (e.g., Fisher et al., 2012). The team has also developed methodologies for the rapid preparation of produced-water samples by MC-ICP-MS and ICP-MS; we are using these methodologies to investigate the potential of key geochemical indicators and species of interest (Sr, Ra) as indicators of fluid and gas migration in the Appalachian Basin. Experimental work on subsurface geochemical reactions in the presence of hydraulic fracturing fluid is underway to evaluate potential impacts on produced water chemistry and fracture stability within the shale formation. Additional laboratory experiments, coupled with modeling efforts, are evaluating the effects of well drilling on shallow groundwater hydrology, and the potential for shallow gas to affect cement hydration. At the field scale, the density and distribution of existing wellbores are being assessed through detection with remote magnetometer surveys, and compilation and analysis of existing wellbore databases. Results from these varied research efforts will be used in future predictive assessments of the behavior of engineered shale gas systems. JF - American Geophysical Union Fall Meeting AU - Hakala, A AU - Wall, A J AU - Guthrie, G AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H52A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696872880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+the+performance+of+hydraulically-fractured+shale+gas+resources+in+the+Appalachian+Basin&rft.au=Hakala%2C+A%3BWall%2C+A+J%3BGuthrie%2C+G%3BAnonymous&rft.aulast=Hakala&rft.aufirst=A&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geochemical variations of rare earth elements in Marcellus Shale flowback waters and multiple-source cores in the Appalachian Basin AN - 1696872269; 2015-066535 AB - Rare earth elements (REE)--encompassing the naturally occurring lanthanides, yttrium, and scandium--are potential tracers for subsurface groundwater-brine flows and geochemical processes. Application of these elements as naturally occurring tracers during shale gas development is reliant on accurate quantitation of trace metals in hypersaline brines. We have modified and validated a liquid-liquid technique for extraction and pre-concentration of REE from saline produced waters from shale gas extraction wells with quantitative analysis by ICP-MS. This method was used to analyze time-series samples of Marcellus shale flowback and produced waters. Additionally, the total REE content of core samples of various strata throughout the Appalachian Basin were determined using HF/HNO3 digestion and ICP-MS analysis. A primary goal of the study is to elucidate systematic geochemical variations as a function of location or shale characteristics. Statistical testing will be performed to study temporal variability of inter-element relationships and explore associations between REE abundance and major solution chemistry. The results of these analyses and discussion of their significance will be presented. JF - American Geophysical Union Fall Meeting AU - Noack, C AU - Jain, J AU - Hakala, A AU - Schroeder, K AU - Dzombak, D A AU - Karamalidis, A AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H52A EP - 06 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696872269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Geochemical+variations+of+rare+earth+elements+in+Marcellus+Shale+flowback+waters+and+multiple-source+cores+in+the+Appalachian+Basin&rft.au=Noack%2C+C%3BJain%2C+J%3BHakala%2C+A%3BSchroeder%2C+K%3BDzombak%2C+D+A%3BKaramalidis%2C+A%3BAnonymous&rft.aulast=Noack&rft.aufirst=C&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Field and lab-based microbiological investigations of the Marcellus Shale AN - 1692743318; 2015-059186 AB - The recent exploration of shales for natural gas resources has provided the opportunity to study their subsurface geochemistry and microbiology. Evidence indicates that shale environments are marked by extreme conditions such as high temperature and pressure, low porosity, permeability and connectivity, and the presence of heavy metals and radionuclides. It has been postulated that many of these shales are naturally sterile due to the high pressure and temperature conditions under which they were formed. However, it has been shown in the Antrim and New Albany shales that microbial communities do exist in these environments. Here we review geochemical and microbiological evidence for the possible habitation of the Marcellus shale by microorganisms and compare these conditions to other shales in the U.S. Furthermore, we describe the development of sampling and analysis techniques used to evaluate microbial communities present in the Marcellus Shale and associated hydraulic fracturing fluid. Sampling techniques thus far have consisted of collecting flowback fluids from wells and water impoundments and collecting core material from previous drilling expeditions. Furthermore, DNA extraction was performed on Marcellus shale sub-core with a MoBio PowerSoil kit to determine its efficiency. Assessment of the Marcellus Shale indicates that it has low porosity and permeability that are not conducive to dense microbial populations; however, moderate temperatures and a natural fracture network may support a microbial community especially in zones where the Marcellus intersects more porous geologic formations. Also, hydraulic fracturing extends this fracture network providing more environments where microbial communities can exist. Previous research which collected flowback fluids has revealed a diverse microbial community that may be derived from hydrofrac fluid production or from the subsurface. DNA extraction from 10 g samples of Marcellus shale sub-core were unsuccessful even when samples were spiked with 8 X 108 cells/g of shale. This indicated that constituents of shale such as high levels of carbonates, humic acids and metals likely inhibited components of the PowerSoil kit. Future research is focused on refining sample collection and analyses to gain a full understanding of the microbiology of the Marcellus Shale and associated flowback fluids. This includes the development of an in situ osmosampler, which will collect temporally relevant fluid and colonized substrate samples. The design of the osmosampler for hydraulic fracturing wells is being adapted from those used to sample marine environments. Furthermore, incubation experiments are underway to study interactions between microbial communities associated with hydraulic fracturing fluid and Marcellus Shale samples. In conclusion, evidence suggests that the Marcellus shale is a possible component of the subsurface biosphere. Future studies will be valuable in determining the microbial community structure and function in relation to the geochemistry of the Marcellus Shale and its future development as a natural gas resource. JF - American Geophysical Union Fall Meeting AU - Wishart, Jessie R AU - Neumann, K AU - Edenborn, H M AU - Hakala, A AU - Yang, J AU - Torres, M E AU - Colwell, Frederick S AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H53B EP - 1417 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692743318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Field+and+lab-based+microbiological+investigations+of+the+Marcellus+Shale&rft.au=Wishart%2C+Jessie+R%3BNeumann%2C+K%3BEdenborn%2C+H+M%3BHakala%2C+A%3BYang%2C+J%3BTorres%2C+M+E%3BColwell%2C+Frederick+S%3BAnonymous&rft.aulast=Wishart&rft.aufirst=Jessie&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-02 N1 - CODEN - #07548 ER - TY - JOUR T1 - Use of arsenic and REE in black shales as potential environmental tracers in hydraulic fracturing operations AN - 1692743206; 2015-059189 AB - Black shales commonly targeted for shale gas development were deposited under low oxygen concentrations, and typically contain high As levels. The depositional environment governs its solid-phase association in the sediment, which in turn will influence degree of remobilization during hydraulic fracturing. Organic carbon (OC), trace element (TE) and REE distributions have been used as tracers for assessing deep water redox conditions at the time of deposition in the Midcontinent Sea of North America (Algeo and Heckel, 2008), during large-scale oceanic anoxic events (e.g., Bunte, 2009) and in modern OC-rich sediments underlying coastal upwelling areas (e.g., Brumsack, 2006). We will present REE and As data from a collection of six different locations in the continental US (Kansas, Iowa, Oklahoma, Kentucky, North Dakota and Pennsylvania), ranging in age from Devonian to Upper Pennsylvanian, and from a Cretaceous black shale drilled on the Demerara Rise during ODP Leg 207. We interpret our data in light of the depositional framework previously developed for these locations based on OC and TE patterns, to document the mechanisms leading to REE and As accumulation, and explore their potential use as environmental proxies and their diagenetic remobilization during burial, as part of our future goal to develop a predictive evaluation of arsenic release from shales and transport with flowback waters. Total REE abundance (Sigma REE) ranged from 35 to 420 ppm in an organic rich sample from Stark shale, KS. PAAS-normalized REE concentrations ranged from 0.5 to 7, with the highest enrichments observed in the MREE (Sm to Ho). Neither the Sigma REE nor the MREE enrichments correlated with OC concentrations or postulated depositional redox conditions, suggesting a principal association with aluminosilicates and selective REE fractionation during diagenesis. In the anoxic reducing environments in which black shales were deposited, sulfide minerals such as FeS2 trap aqueous arsenic in the crystal lattice, but As is also known to bind to the charged surfaces of clay minerals. Our arsenic concentration data show that the highest abundances (up to 70 ppm) are found in sediments with the highest total sulfur concentration (to 2.6 ppm), but there was no clear correlation with organic carbon or aluminosilicate content. We compare our results with preliminary data from a series of flowback waters sampled from ten producing wells in Pennsylvania and from high-pressure high-temperature experimental leaching of Marcellus Shale samples. JF - American Geophysical Union Fall Meeting AU - Yang, J AU - Torres, M E AU - Haley, B A AU - McKay, J L AU - Algeo, T J AU - Hakala, A AU - Joseph, C AU - Edenborn, H M AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H53B EP - 1420 PB - American Geophysical Union, Washington, DC VL - 2013 KW - hydraulic fracturing KW - Southwest Pacific KW - DSDP Site 207 KW - arsenic KW - South Pacific KW - Leg 21 KW - West Pacific KW - Lord Howe Rise KW - black shale KW - sedimentary rocks KW - metals KW - Pacific Ocean KW - tracers KW - Deep Sea Drilling Project KW - rare earths KW - clastic rocks KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692743206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Use+of+arsenic+and+REE+in+black+shales+as+potential+environmental+tracers+in+hydraulic+fracturing+operations&rft.au=Yang%2C+J%3BTorres%2C+M+E%3BHaley%2C+B+A%3BMcKay%2C+J+L%3BAlgeo%2C+T+J%3BHakala%2C+A%3BJoseph%2C+C%3BEdenborn%2C+H+M%3BAnonymous&rft.aulast=Yang&rft.aufirst=J&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - arsenic; black shale; clastic rocks; Deep Sea Drilling Project; DSDP Site 207; hydraulic fracturing; Leg 21; Lord Howe Rise; metals; Pacific Ocean; rare earths; sedimentary rocks; South Pacific; Southwest Pacific; tracers; West Pacific ER - TY - JOUR T1 - NFFLOW fractured reservoir flow model improvements AN - 1692742770; 2015-059101 AB - NFFLOW is a reservoir simulator designed for fractured, tight reservoirs. It is used for modeling flows, pressures and compositions in such natural gas reservoirs, storage reservoirs, and carbon dioxide reservoir storage. It was first developed in 1997 and is subject to continuous improvements. Originally, communication between rock matrix and fracture network was by flows from and to immediately adjacent fractures and matrix. We report on the capability of flows occurring across a rock matrix. JF - American Geophysical Union Fall Meeting AU - Boyle, E J AU - Sams, W N AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H21E EP - 1104 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692742770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=NFFLOW+fractured+reservoir+flow+model+improvements&rft.au=Boyle%2C+E+J%3BSams%2C+W+N%3BAnonymous&rft.aulast=Boyle&rft.aufirst=E&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-02 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sediment failure during injection of CO2 into deep ocean sediments; reservoir engineering AN - 1686055413; 2015-046402 AB - At seafloor depths beneath the 2.7 km carbon dioxide/water density inversion in the ocean, CO2 is denser than water and sinks. Therefore, CO2 injected into deep ocean sediments may be buoyancy-trapped and may not require an impermeable caprock to prevent upward migration. Overlying sediments provide a diffusion-limited transport barrier, but more critically must provide the geomechanical stability to allow for CO2 injection. While there are some permeable sandy sediments at the necessary seafloor depths, the dominant pelagic lithologies are impermeable clays and low-permeability calcareous oozes. Pelagic calcareous ooze diagenesis generally results solely from the compressional weight of overlying sediments. Nearly-monotonically decreasing porosity and hence decreasing permeability lead to increasing stresses and material strengths with depth below the seafloor. Permeabilities in pelagic calcareous sediments are in the 1-100 microDarcy range, comparable to permeabilities found in tight oil and shale gas fields where fracturing is required to increase production. Previously (1) we used LANL's Finite Element Heat and Mass Transfer Code (FEHM) to show that in this system shear failure will precede hydraulic fracturing and that the shear failure breakdown zone propagates to the seafloor ahead of the CO2 front. FEHM models the flow of both CO2 and water while solving for the geomechanical stress state. Shear failure due to injection overpressure is simulated as an increase in permeability along failed nodes. Here we present updated results for CO2 injection from a vertical well into an idealized 3-D model with and without shear failure. The effect of variations in injection interval depth, seafloor depth, injection rate, fracturing pressure, permeability, porosity, and rock strength are presented. Finally, we present a comparison of several different reservoir engineering scenarios with the aim of maximizing total injected CO2 while avoiding CO2 reaching the seafloor. JF - American Geophysical Union Fall Meeting AU - Stauffer, P H AU - Levine, J AU - Dempsey, D AU - Kelkar, S AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract H21L EP - 01 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686055413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Sediment+failure+during+injection+of+CO2+into+deep+ocean+sediments%3B+reservoir+engineering&rft.au=Stauffer%2C+P+H%3BLevine%2C+J%3BDempsey%2C+D%3BKelkar%2C+S%3BAnonymous&rft.aulast=Stauffer&rft.aufirst=P&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Iron and sulfur geochemistry in class H wellbore cements exposed to CO (sub 2) and H (sub 2) S AN - 1645572014; 2015-006110 AB - The effects of CO (sub 2) & co-constituents (such as H (sub 2) S) sequestration on cement seal integrity are not well understood in the context of wellbore integrity for CO (sub 2) storage. This study evaluates the redox effects that co-contaminants such as H (sub 2) S present to the CO (sub 2) -cement reaction system via synchrotron X-ray XANES mapping specific to the iron and sulfur edge energies. Portland Class H cement was exposed to various proportions of H (sub 2) S:CO (sub 2) in 1% NaCl saturated brine (1%, 21 mol%, and 40% H (sub 2) S) under supercritical conditions (50 degrees C and 15 MPa). The reaction of cement with H (sub 2) S-CO (sub 2) results in the formation of pyrite associated with the Fe-rich cement clinker phase, brownmillerite (also termed ferrite). Ferrite has not reacted in previous exposures to CO (sub 2) alone, which was confirmed by synchrotron spectroscopic analysis of cement exposed to supercritical CO (sub 2) alone. Thus it is hypothesized that the reaction is a result of redox conditions introduced by H (sub 2) S. The synchrotron X-ray microprobe fluorescence (mu XRF) imaging and spectroscopy capabilities at beamlines 2-3 and 14-3 at SSRL were used to collect multiple energy (ME) maps for both Fe and S in order to evaluate reaction fronts in the cement matrix and to monitor the chemical changes in the cement associated with exposure to CO (sub 2) (and H (sub 2) S) at sequestration conditions. The use of this micro-spectroscopy technique allows for in-situ identification of any reaction intermediates (including amorphous materials) for the Fe and S phases in the cement. The coupled mu XANES and mu XRF data were used to generate iron and S speciation maps of the cement cores. Synchrotron microprobe capabilities at 2-3 were used to collected ME maps of Fe, and show differences in Fe oxidation between the rims (Fe (super 2+) ) and cores (Fe (super 3+) ) of the cement thin section. Analysis of Fe XANES indicates that there are potentially 4+ distinct coordination environments for the Fe in the cement cores studied: pyrite, ferrihydrite, brownmillerite (Fe (super 3+) , and/or Fe (super 2+) ) and potentially amorphous Fe-S. In a similar manner, S was evaluated by collecting multiple energy maps through the S-edge using beamline 14-3 at SSRL. The S ME maps revealed much broader reaction fronts as revealed by the iron mapping alone. Analysis of S XANES spectra is ongoing, but preliminary results indicate that possibly 6 different binding environments are likely in the cements depending on the H (sub 2) S concentration: FeS, FeS (sub 2) , S, a sulfite phase, and potentially two different sulfates (gypsum and ettringite). The results indicate that S oxidation state likely grades from S (super +6) in the core of the cement to S (super -1) in the rim of the cement, with S oxidation states ranging from S (super 4+) to S (super 0) in zones in between. This work will serve to better understand the geochemical reactions in the cement upon addition of S co-constituents in order to better assess potential impacts on long-term cement integrity. JF - American Geophysical Union Fall Meeting AU - Lopano, Christina L AU - Webb, Sam M AU - Kutchko, Barbara G AU - Strazisar, Brian R AU - Hawthorne, S B AU - Miller, D J AU - Guthrie, George AU - Hakala, Alexandra AU - Anonymous Y1 - 2013/12// PY - 2013 DA - December 2013 SP - Abstract V31D EP - 06 PB - American Geophysical Union, Washington, DC VL - 2013 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645572014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Iron+and+sulfur+geochemistry+in+class+H+wellbore+cements+exposed+to+CO+%28sub+2%29+and+H+%28sub+2%29+S&rft.au=Lopano%2C+Christina+L%3BWebb%2C+Sam+M%3BKutchko%2C+Barbara+G%3BStrazisar%2C+Brian+R%3BHawthorne%2C+S+B%3BMiller%2C+D+J%3BGuthrie%2C+George%3BHakala%2C+Alexandra%3BAnonymous&rft.aulast=Lopano&rft.aufirst=Christina&rft.date=2013-12-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2013 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - Microbial communities in flowback water impoundments from hydraulic fracturing for recovery of shale gas AN - 1468384502; 18831745 AB - Hydraulic fracturing for natural gas extraction from shale produces waste brine known as flowback that is impounded at the surface prior to reuse and/or disposal. During impoundment, microbial activity can alter the fate of metals including radionuclides, give rise to odorous compounds, and result in biocorrosion that complicates water and waste management and increases production costs. Here, we describe the microbial ecology at multiple depths of three flowback impoundments from the Marcellus shale that were managed differently. 16S rRNA gene clone libraries revealed that bacterial communities in the untreated and biocide-amended impoundments were depth dependent, diverse, and most similar to species within the taxa gamma -proteobacteria, alpha -proteobacteria, delta -proteobacteria,Clostridia,Sy nergistetes,Thermotogae,Spirochetes, and Bacteroidetes. The bacterial community in the pretreated and aerated impoundment was uniform with depth, less diverse, and most similar to known iodide-oxidizing bacteria in the alpha -proteobacteria. Archaea were identified only in the untreated and biocide-amended impoundments and were affiliated to the Methanomicrobia class. This is the first study of microbial communities in flowback water impoundments from hydraulic fracturing. The findings expand our knowledge of microbial diversity of an emergent and unexplored environment and may guide the management of flowback impoundments. JF - FEMS Microbiology Ecology AU - Murali Mohan, Arvind AU - Hartsock, Angela AU - Hammack, Richard W AU - Vidic, Radisav D AU - Gregory, Kelvin B AD - National Energy Technology Laboratory Y1 - 2013/12// PY - 2013 DA - Dec 2013 SP - 567 EP - 580 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 86 IS - 3 SN - 0168-6496, 0168-6496 KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Oceanic Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Hydraulics KW - Metals KW - Archaea KW - Chromium KW - Wastes KW - Identification KW - Natural gas KW - Water management KW - Production cost KW - Impoundments KW - Microbiology KW - Radioisotopes KW - Sedimentary rocks KW - Shale KW - rRNA 16S KW - Brines KW - Q1 08464:Other aquatic communities KW - A 01450:Environmental Pollution & Waste Treatment KW - D 04040:Ecosystem and Ecology Studies KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1468384502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology+Ecology&rft.atitle=Microbial+communities+in+flowback+water+impoundments+from+hydraulic+fracturing+for+recovery+of+shale+gas&rft.au=Murali+Mohan%2C+Arvind%3BHartsock%2C+Angela%3BHammack%2C+Richard+W%3BVidic%2C+Radisav+D%3BGregory%2C+Kelvin+B&rft.aulast=Murali+Mohan&rft.aufirst=Arvind&rft.date=2013-12-01&rft.volume=28&rft.issue=11&rft.spage=1008&rft.isbn=&rft.btitle=&rft.title=Depression+and+Anxiety&rft.issn=10914269&rft_id=info:doi/10.1002%2Fda.20883 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-12-01 N1 - Last updated - 2015-06-26 N1 - SubjectsTermNotLitGenreText - Production cost; Water management; Microbiology; Impoundments; Sedimentary rocks; Wastes; Identification; Natural gas; Brines; Metals; Hydraulics; Chromium; Radioisotopes; Shale; rRNA 16S; Archaea DO - http://dx.doi.org/10.1111/1574-6941.12183 ER - TY - CPAPER T1 - Computational Tools to Accelerate the Development of Carbon Capture Technology T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490523341; 6249733 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Miller, David Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490523341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Computational+Tools+to+Accelerate+the+Development+of+Carbon+Capture+Technology&rft.au=Miller%2C+David&rft.aulast=Miller&rft.aufirst=David&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Non-Isothermal Performance Modeling for CO2 Adsorption T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490520544; 6253966 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Breault, Ronald AU - Huckaby, E AU - Shadle, Lawrence AU - Spenik, James Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Adsorption UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490520544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Non-Isothermal+Performance+Modeling+for+CO2+Adsorption&rft.au=Breault%2C+Ronald%3BHuckaby%2C+E%3BShadle%2C+Lawrence%3BSpenik%2C+James&rft.aulast=Breault&rft.aufirst=Ronald&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Process Development and Economic Evaluation of An Industrial Scale O2 Production Plant Using a Novel Metal-Organic-Framework (MOF) Based O2-Selective Sorbent T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490518903; 6252123 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Murthy Konda, N AU - Siefert, Nicholas AU - Hopkinson, David Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490518903?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Process+Development+and+Economic+Evaluation+of+An+Industrial+Scale+O2+Production+Plant+Using+a+Novel+Metal-Organic-Framework+%28MOF%29+Based+O2-Selective+Sorbent&rft.au=Murthy+Konda%2C+N%3BSiefert%2C+Nicholas%3BHopkinson%2C+David&rft.aulast=Auvinen&rft.aufirst=Jaana&rft.date=2015-09-01&rft.volume=30&rft.issue=3&rft.spage=637&rft.isbn=&rft.btitle=&rft.title=Health+Promotion+International&rft.issn=09574824&rft_id=info:doi/10.1093%2Fheapro%2Fdat088 L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Computational Fluid Dynamic Simulation of a Chemical Looping Process for Methane Combustion T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490516063; 6249197 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Breault, Ronald AU - Liu, Yong AU - Huckaby, E AU - Konan, N'dri Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Combustion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490516063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Computational+Fluid+Dynamic+Simulation+of+a+Chemical+Looping+Process+for+Methane+Combustion&rft.au=Breault%2C+Ronald%3BLiu%2C+Yong%3BHuckaby%2C+E%3BKonan%2C+N%27dri&rft.aulast=Breault&rft.aufirst=Ronald&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - MOF-Based Mixed-Matrix Membranes for CO2 Separation From Flue Gas T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490515912; 6249456 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Luebke, David Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Flue gas UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490515912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=MOF-Based+Mixed-Matrix+Membranes+for+CO2+Separation+From+Flue+Gas&rft.au=Luebke%2C+David&rft.aulast=Luebke&rft.aufirst=David&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Effects of Contaminants On Ionic Liquids for Pre-Combustion CO2 Capture T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490515839; 6249778 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Shi, Fan AU - Nulwala, Hunaid AU - Luebke, David Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490515839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Effects+of+Contaminants+On+Ionic+Liquids+for+Pre-Combustion+CO2+Capture&rft.au=Shi%2C+Fan%3BNulwala%2C+Hunaid%3BLuebke%2C+David&rft.aulast=Shi&rft.aufirst=Fan&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Gasifier Performance Modeling Including Mass Transfer Effects T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490514375; 6252512 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Breault, Ronald AU - Nicoletti, Phil Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Mass transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490514375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Gasifier+Performance+Modeling+Including+Mass+Transfer+Effects&rft.au=Breault%2C+Ronald%3BNicoletti%2C+Phil&rft.aulast=Breault&rft.aufirst=Ronald&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/10.11621%2Fpir.2012.0013 L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Activity and Structure of Mo-HZSM5 Catalysts for Non-Oxidative Methane Dehydroaromatization T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490512905; 6250279 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Natesakhawat, Sittichai AU - Abdelsayed, Victor AU - Shekhawat, Dushyant AU - Smith, Mark AU - Baltrus, John AU - Damodaran, Krishnan Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Methane UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490512905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Activity+and+Structure+of+Mo-HZSM5+Catalysts+for+Non-Oxidative+Methane+Dehydroaromatization&rft.au=Natesakhawat%2C+Sittichai%3BAbdelsayed%2C+Victor%3BShekhawat%2C+Dushyant%3BSmith%2C+Mark%3BBaltrus%2C+John%3BDamodaran%2C+Krishnan&rft.aulast=Natesakhawat&rft.aufirst=Sittichai&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - The Carbon Capture Simulation Initiative (CCSI): Computational Tools To Accelerate Commercial Development T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490512428; 6249075 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Miller, David Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Simulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490512428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=The+Carbon+Capture+Simulation+Initiative+%28CCSI%29%3A+Computational+Tools+To+Accelerate+Commercial+Development&rft.au=Miller%2C+David&rft.aulast=Miller&rft.aufirst=David&rft.date=2013-11-03&rft.volume=&rft.issue=7&rft.spage=1276&rft.isbn=&rft.btitle=&rft.title=Journal+of+Physical+Activity+%26+Health&rft.issn=15433080&rft_id=info:doi/10.1123%2Fjpah.2012-0386 L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Modeling Chemical and Physical Interactions in CO2/Ionic Liquids With the Reaxff Force Field T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490509769; 6250592 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Zhang, Bo AU - van Duin, Adri AU - Johnson, J Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490509769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Modeling+Chemical+and+Physical+Interactions+in+CO2%2FIonic+Liquids+With+the+Reaxff+Force+Field&rft.au=Zhang%2C+Bo%3Bvan+Duin%2C+Adri%3BJohnson%2C+J&rft.aulast=Zhang&rft.aufirst=Bo&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Experimental Measurements and Modeling of Viscosity for Liquid Hydrocarbons At Pressures Up to 243 Mpa and Temperatures Up to 534 K T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490509242; 6250382 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Baled, Hseen AU - Xing, Dazun AU - Enick, Robert AU - Gamwo, Isaac AU - Tapriyal, Deepak AU - Bamgbade, Babatunde AU - Wu, Yue AU - McHugh, Mark Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Temperature effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490509242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Experimental+Measurements+and+Modeling+of+Viscosity+for+Liquid+Hydrocarbons+At+Pressures+Up+to+243+Mpa+and+Temperatures+Up+to+534+K&rft.au=Baled%2C+Hseen%3BXing%2C+Dazun%3BEnick%2C+Robert%3BGamwo%2C+Isaac%3BTapriyal%2C+Deepak%3BBamgbade%2C+Babatunde%3BWu%2C+Yue%3BMcHugh%2C+Mark&rft.aulast=Baled&rft.aufirst=Hseen&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Study of CO2-Soluble and Brine-Soluble Surfactants for CO2 Mobility Control T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490509086; 6250915 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Burgess, Ward AU - Soong, Yee AU - Crandall, Dustin AU - McLendon, Robert AU - Goodman, Angela AU - Enick, Robert AU - Buckwalter, Sean Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Mobility UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490509086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Study+of+CO2-Soluble+and+Brine-Soluble+Surfactants+for+CO2+Mobility+Control&rft.au=Burgess%2C+Ward%3BSoong%2C+Yee%3BCrandall%2C+Dustin%3BMcLendon%2C+Robert%3BGoodman%2C+Angela%3BEnick%2C+Robert%3BBuckwalter%2C+Sean&rft.aulast=Burgess&rft.aufirst=Ward&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Status of Eos Model Development for Extreme Temperatures and Pressures T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490508985; 6250913 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Gamwo, Isaac AU - Tapriyal, Deepak AU - Burgess, Ward AU - Baled, Hseen AU - Enick, Robert AU - Wu, Yue AU - McHugh, Mark Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Temperature effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490508985?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Status+of+Eos+Model+Development+for+Extreme+Temperatures+and+Pressures&rft.au=Gamwo%2C+Isaac%3BTapriyal%2C+Deepak%3BBurgess%2C+Ward%3BBaled%2C+Hseen%3BEnick%2C+Robert%3BWu%2C+Yue%3BMcHugh%2C+Mark&rft.aulast=Gamwo&rft.aufirst=Isaac&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Carbon Formation On Pyrochlore Catalysts Under Partial Oxidation of Liquid Hydrocarbons T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490504827; 6250954 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Smith, Mark AU - Berry, David AU - Shekhawat, Dushyant AU - Haynes, Daniel AU - Floyd, Don AU - Zondlo, John AU - Spivey, James Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Oxidation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490504827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Carbon+Formation+On+Pyrochlore+Catalysts+Under+Partial+Oxidation+of+Liquid+Hydrocarbons&rft.au=Smith%2C+Mark%3BBerry%2C+David%3BShekhawat%2C+Dushyant%3BHaynes%2C+Daniel%3BFloyd%2C+Don%3BZondlo%2C+John%3BSpivey%2C+James&rft.aulast=Smith&rft.aufirst=Mark&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Impact of Water Vapor and Oxygen On Amine Sorbents for Post-Combustion CO2 Capture T2 - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AN - 1490503169; 6252104 JF - 2013 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2013) AU - Hammache, Sonia AU - Hoffman, James AU - Egbebi, Adefemi AU - Gray, McMahan Y1 - 2013/11/03/ PY - 2013 DA - 2013 Nov 03 KW - Water vapor UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490503169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.atitle=Impact+of+Water+Vapor+and+Oxygen+On+Amine+Sorbents+for+Post-Combustion+CO2+Capture&rft.au=Hammache%2C+Sonia%3BHoffman%2C+James%3BEgbebi%2C+Adefemi%3BGray%2C+McMahan&rft.aulast=Hammache&rft.aufirst=Sonia&rft.date=2013-11-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2013%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2013/webprogram/meeting2013-11-03.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - CPAPER T1 - Using Sr Isotopes to Track the Dissolution of Marcellus Shale by Hydraulic Fracturing Fluids T2 - 2013 Annual Meeting & Exposition of the Geological Society of America AN - 1490519831; 6248466 JF - 2013 Annual Meeting & Exposition of the Geological Society of America AU - Wall, Andrew AU - Hakala, J AU - Marcon, Virginia AU - Joseph, Craig Y1 - 2013/10/27/ PY - 2013 DA - 2013 Oct 27 KW - Isotopes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1490519831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2013+Annual+Meeting+%26+Exposition+of+the+Geological+Society+of+America&rft.atitle=Using+Sr+Isotopes+to+Track+the+Dissolution+of+Marcellus+Shale+by+Hydraulic+Fracturing+Fluids&rft.au=Wall%2C+Andrew%3BHakala%2C+J%3BMarcon%2C+Virginia%3BJoseph%2C+Craig&rft.aulast=Wall&rft.aufirst=Andrew&rft.date=2013-10-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2013+Annual+Meeting+%26+Exposition+of+the+Geological+Society+of+America&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2013AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-30 N1 - Last updated - 2014-02-10 ER - TY - JOUR T1 - Nanoparticle-stabilised invert emulsion drilling fluids for deep-hole drilling of oil and gas AN - 1620088022; 20467561 AB - Invert emulsions are used to drill for oil and gas when good wellbore stability and high temperature tolerance are required. These drilling fluids contain a solid phase and two immiscible liquid phases stabilised with a polymeric surfactant. In ultra deep drilling, due to high temperature, the surfactant degrades causing phase separation. However, fine particles can be used as stabilisers, and the result is a Pickering emulsion. Here, we demonstrate that the use of a combination of hydrophobic nanoparticles and organically modified nanoclay results in stable water-in-oil invert emulsions model drilling fluids. These gel-like model fluids have the desired plastic viscosity and yield stress suitable for drilling fluid applications that can be modified by adjusting the nanoparticle-content. Aging experiments at 225 degree C showed that they also have high-temperature stability for demanding drilling operations. JF - Canadian Journal of Chemical Engineering AU - Agarwal, Sushant AU - Phuoc, Tran X AU - Soong, Yee AU - Martello, Donald AU - Gupta, Rakesh K AD - US-DOE National Energy Technology Laboratory, P.O. Box 10940, Pittsburgh, PA 15236, U.S.A. Y1 - 2013/10// PY - 2013 DA - October 2013 SP - 1641 EP - 1649 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 91 IS - 10 SN - 0008-4034, 0008-4034 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Drills KW - Aging KW - Drilling KW - Drilling fluids KW - Oil KW - Pollutants KW - Drilling Fluids KW - Oil and gas industry KW - Temperature KW - Chemical engineering KW - Emulsions KW - Model Studies KW - Chemical Engineering KW - Surfactants KW - Temperature tolerance KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1620088022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Chemical+Engineering&rft.atitle=Nanoparticle-stabilised+invert+emulsion+drilling+fluids+for+deep-hole+drilling+of+oil+and+gas&rft.au=Agarwal%2C+Sushant%3BPhuoc%2C+Tran+X%3BSoong%2C+Yee%3BMartello%2C+Donald%3BGupta%2C+Rakesh+K&rft.aulast=Agarwal&rft.aufirst=Sushant&rft.date=2013-10-01&rft.volume=91&rft.issue=10&rft.spage=1641&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Chemical+Engineering&rft.issn=00084034&rft_id=info:doi/10.1002%2Fcjce.21768 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Oil and gas industry; Aging; Drills; Drilling fluids; Chemical engineering; Surfactants; Emulsions; Temperature tolerance; Oil; Pollutants; Drilling Fluids; Temperature; Drilling; Chemical Engineering; Model Studies DO - http://dx.doi.org/10.1002/cjce.21768 ER - TY - JOUR T1 - Comparison of high-pressure CO (sub 2) sorption isotherms on Central Appalachian and San Juan Basin coals AN - 1492586344; 2014-005917 AB - Accurate estimation of carbon dioxide (CO (sub 2) ) sorption capacity of coal is important for planning the CO (sub 2) sequestration efforts. In this work, we investigated the sorption and swelling behavior of several Eastern and Western US coal samples from the Central Appalachian Basin and from the San Juan Basin. The CO (sub 2) sorption isotherms have been completed at 55 degrees C for wet and dry samples. The role of mineral components in coal, coal swelling, effects of temperature and moisture, and the error propagation have been analyzed. Changes in void volume due to dewatering and other factors such as caging of carbon dioxide molecules in coal matrix were identified among the main factors affecting accuracy of the carbon dioxide sorption isotherms. The (helium) void volume in the sample cells was measured before and after the sorption isotherm experiments and was used to build the volume-corrected data plots. Abstract Copyright (2013) Elsevier, B.V. JF - International Journal of Coal Geology AU - Romanov, Vyacheslav N AU - Hur, Tae-Bong AU - Fazio, James J AU - Howard, Bret H AU - Irdi, Gino A Y1 - 2013/10/01/ PY - 2013 DA - 2013 Oct 01 SP - 89 EP - 94 PB - Elsevier, Amsterdam VL - 118 SN - 0166-5162, 0166-5162 KW - United States KW - coalification KW - North America KW - sorption KW - experimental studies KW - expansion KW - carbon sequestration KW - Virginia KW - pressure KW - X-ray diffraction data KW - moisture KW - Appalachians KW - Russell County Virginia KW - high pressure KW - carbon dioxide KW - sedimentary rocks KW - isotherms KW - Central Appalachians KW - Appalachian Basin KW - coal KW - San Juan Basin KW - 06B:Petrology of coal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492586344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Comparison+of+high-pressure+CO+%28sub+2%29+sorption+isotherms+on+Central+Appalachian+and+San+Juan+Basin+coals&rft.au=Romanov%2C+Vyacheslav+N%3BHur%2C+Tae-Bong%3BFazio%2C+James+J%3BHoward%2C+Bret+H%3BIrdi%2C+Gino+A&rft.aulast=Romanov&rft.aufirst=Vyacheslav&rft.date=2013-10-01&rft.volume=118&rft.issue=&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2013.05.006 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2014-01-30 N1 - SubjectsTermNotLitGenreText - Appalachian Basin; Appalachians; carbon dioxide; carbon sequestration; Central Appalachians; coal; coalification; expansion; experimental studies; high pressure; isotherms; moisture; North America; pressure; Russell County Virginia; San Juan Basin; sedimentary rocks; sorption; United States; Virginia; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.coal.2013.05.006 ER - TY - JOUR T1 - Flue gas cleanup using the Moving-Bed Copper Oxide Process AN - 1443369297; 18662643 AB - The use of copper oxide on a support had been envisioned as a gas cleanup technique to remove sulfur dioxide (S0 sub(2)) and nitric oxides (NO sub(X)) from flue gas produced by the combustion of coal for electric power generation. In general, dry. regenerate flue gas cleanup techniques that use a sorbent can have various advantages, such as simultaneous removal of pollutants, production of a salable by-product, and low costs when compared to commercially available wet scrubbing technology. Due to the temperature of reaction, the placement of the process into an advanced power system could actually increase the thermal efficiency of the plant The Moving-Bed Copper Oxide Process is capable of simultaneously removing sulfur oxides and nitric oxides within the reactor system. In this regenerable sorbent technique, the use of the copper oxide sorbent was originally in a fluidized bed, but the more recent effort developed the use of the sorbent in a moving-bed reactor design. A pilot facility or life-cycle test system was constructed so that an integrated testing of the sorbent over absorption/regeneration cycles could be conducted. A parametric study of the total process was then performed where all process steps, including absorption and regeneration, were continuously operated and experimentally evaluated. The parametric effects, including absorption temperature, sorbent and gas residence times, inlet SO sub(2) and NO sub(X) concentration, and flyash loadings, on removal efficiencies and overall operational performance were determined. Although some of the research results have not been previously published because of previous collaborative restrictions, a summary of these past findings is presented in this communication. Additionally, the potential use of the process for criteria pollutant removal in oxy-firing of fossil fuel for carbon sequestration purposes is discussed. JF - Fuel Processing Technology AU - Pennline, H W AU - Hoffman, J S AD - U.S. Department of Energy, National Energy Technology Laboratory, P.O. Box 10940, Pittsburgh, PA 15236, United States, james.hoffman@netl.doe.gov Y1 - 2013/10// PY - 2013 DA - Oct 2013 SP - 109 EP - 117 PB - Elsevier B.V., The Boulevard Langford Lane Kidlington Oxford OX5 1GB United Kingdom VL - 114 SN - 0378-3820, 0378-3820 KW - Pollution Abstracts; Environment Abstracts KW - Sorbents KW - Sulfur dioxide KW - Regeneration KW - Absorption KW - Flue gas KW - Temperature KW - Nitric oxide KW - Copper KW - Combustion KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1443369297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fuel+Processing+Technology&rft.atitle=Flue+gas+cleanup+using+the+Moving-Bed+Copper+Oxide+Process&rft.au=Pennline%2C+H+W%3BHoffman%2C+J+S&rft.aulast=Pennline&rft.aufirst=H&rft.date=2013-10-01&rft.volume=114&rft.issue=&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Fuel+Processing+Technology&rft.issn=03783820&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-10-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Sorbents; Sulfur dioxide; Regeneration; Temperature; Flue gas; Absorption; Nitric oxide; Copper; Combustion ER - TY - JOUR T1 - Co-pyrolysis of low rank coals and biomass: Product distributions AN - 1464580874; 18742679 AB - Pyrolysis and gasification of combined low rank coal and biomass feeds are the subject of much study in an effort to mitigate the production of green house gases from integrated gasification combined cycle (IGCC) systems. While co-feeding has the potential to reduce the net carbon footprint of commercial gasification operations, success of this strategy requires investigation of the effects of coal/biomass co-feeding on reaction kinetics and product distributions. Southern yellow pine was pyrolyzed in a semi-batch type drop tube reactor with either Powder River Basin sub-bituminous coal or Mississippi lignite at several temperatures and feed ratios. Product gas composition of expected primary constituents (CO, CO(2), CH(4), H(2), H(2)O, and C(2)H(4)) was determined by in situ mass spectrometry while minor gaseous constituents were determined using a GC-MS. Product distributions are fit to linear functions of temperature, and quadratic functions of biomass fraction, for use in computational co-pyrolysis simulations. The results are shown to yield significant nonlinearities, particularly at higher temperatures and for lower ranked coals. The co-pyrolysis product distributions evolve more tar, and less char, CH(4), and C(2)H(4), than an additive pyrolysis process would suggest. For lignite co-pyrolysis, CO and H(2) production are also reduced. The data suggests that rapid pyrolysis of biomass produces hydrogen that stabilizes large radical structures generated during the early stages of coal pyrolysis. Stabilization causes these structures to be released as tar, rather than crosslinking with one another to produce secondary char and light gases. Finally, it is shown that, for the two coal types tested, co-pyrolysis synergies are more significant as coal rank decreases, likely because the initial structure in these coals contains larger pores and smaller clusters of aromatic structures which are more readily retained as tar in rapid co-pyrolysis. JF - Fuel AU - Soncini, Ryan M AU - Means, Nicholas C AU - Weiland, Nathan T AD - National Energy Technology Laboratory, Pittsburgh, PA, United States, nathan.weiland@mail.wvu.edu Y1 - 2013/07/29/ PY - 2013 DA - 2013 Jul 29 SP - 74 EP - 82 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 112 SN - 0016-2361, 0016-2361 KW - Environment Abstracts KW - Tar KW - Temperature KW - Mass spectrometry KW - Simulation KW - River basins KW - Coal KW - Biomass KW - Pyrolysis KW - Gases KW - Kinetics KW - Gasification KW - USA, Mississippi KW - USA, Powder River basin KW - Greenhouse gases KW - Additives KW - Feeds KW - ENA 11:Non-Renewable Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464580874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fuel&rft.atitle=Co-pyrolysis+of+low+rank+coals+and+biomass%3A+Product+distributions&rft.au=Soncini%2C+Ryan+M%3BMeans%2C+Nicholas+C%3BWeiland%2C+Nathan+T&rft.aulast=Soncini&rft.aufirst=Ryan&rft.date=2013-07-29&rft.volume=112&rft.issue=&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Fuel&rft.issn=00162361&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Number of references - 36 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Tar; Temperature; Simulation; Mass spectrometry; River basins; Coal; Biomass; Pyrolysis; Gases; Kinetics; Gasification; Greenhouse gases; Additives; Feeds; USA, Powder River basin; USA, Mississippi ER - TY - JOUR T1 - nvestigation on the solidification of several pure cyclic and aromatic hydrocarbons at pressures to 300 MPa AN - 1464577795; 18742570 AB - The effect of pressure on the solidification of several saturated cyclic hydrocarbons and three xylene isomers are experimentally determined with a variable-volume view cell at pressures to 300 MPa and temperatures starting at 293.15 K. Solid-liquid transitions are observed for cyclooctane, cis-1,2-dimethylcyclohexane, trans-1,4-dimethylcyclohexane, p-xylene. o-xylene, and 2-methylnaphthalene. However, methylcyclohexane, ethylcyclohexane, cis-1,4-dimethylcyclohexane, and m-xylene remained liquid over the same operating pressure and temperature ranges. The experimental solid-liquid transition data are well represented with two empirical equations, the Simon equation and a 2nd-order polynomial equation. Data obtained in this study agree with literature data within (plus-or-minus sign)0.4% for 2-methylnaphthalene and (plus-or-minus sign)0.2% for p-xylene. JF - Fuel AU - Wu, Yue AU - Liu, Kun AU - Bamgbade, Babatunde A AU - McHugh, Mark A AD - National Energy Technology Laboratory, Office of Research and Development, Department of Energy, Pittsburgh, PA, USA, wuy@vcu.edu Y1 - 2013/07/03/ PY - 2013 DA - 2013 Jul 03 SP - 75 EP - 80 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 111 SN - 0016-2361, 0016-2361 KW - Environment Abstracts KW - Saturated hydrocarbons KW - Xylene KW - Fuels KW - Temperature KW - Solidification KW - Aromatic hydrocarbons KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464577795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fuel&rft.atitle=nvestigation+on+the+solidification+of+several+pure+cyclic+and+aromatic+hydrocarbons+at+pressures+to+300+MPa&rft.au=Wu%2C+Yue%3BLiu%2C+Kun%3BBamgbade%2C+Babatunde+A%3BMcHugh%2C+Mark+A&rft.aulast=Wu&rft.aufirst=Yue&rft.date=2013-07-03&rft.volume=111&rft.issue=&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Fuel&rft.issn=00162361&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Number of references - 49 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Saturated hydrocarbons; Xylene; Fuels; Temperature; Aromatic hydrocarbons; Solidification ER - TY - JOUR T1 - Darcy flow in a wavy channel filled with a porous medium AN - 1832635363; 676811-14 AB - Flow in channels bounded by wavy or corrugated walls is of interest in both technological and geological contexts. This paper presents an analytical solution for the steady Darcy flow of an incompressible fluid through a homogeneous, isotropic porous medium filling a channel bounded by symmetric wavy walls. This packed channel may represent an idealized packed fracture, a situation which is of interest as a potential pathway for the leakage of carbon dioxide from a geological sequestration site. The channel walls change from parallel planes, to small amplitude sine waves, to large amplitude nonsinusoidal waves as certain parameters are increased. The direction of gravity is arbitrary. A plot of piezometric head against distance in the direction of mean flow changes from a straight line for parallel planes to a series of steeply sloping sections in the reaches of small aperture alternating with nearly constant sections in the large aperture bulges. Expressions are given for the stream function, specific discharge, piezometric head, and pressure. Copyright 2013 Springer Science+Business Media Dordrecht and Springer Science+Business Media Dordrecht (outside the USA) JF - Transport in Porous Media AU - Gray, Donald D AU - Ogretim, Egemen AU - Bromhal, Grant S Y1 - 2013/07// PY - 2013 DA - July 2013 SP - 743 EP - 753 PB - Springer, Dordrecht VL - 98 IS - 3 SN - 0169-3913, 0169-3913 KW - Hele-Shaw equations KW - carbon sequestration KW - numerical models KW - Darcy's law KW - fluid flow KW - channels KW - porous materials KW - equations KW - Poiseuille solution KW - carbon dioxide KW - fractures KW - Navier-Stokes equations KW - mathematical methods KW - Darcy-Brinkman equation KW - Reynolds number KW - hydraulic conductivity KW - homogeneous materials KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832635363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Darcy+flow+in+a+wavy+channel+filled+with+a+porous+medium&rft.au=Gray%2C+Donald+D%3BOgretim%2C+Egemen%3BBromhal%2C+Grant+S&rft.aulast=Gray&rft.aufirst=Donald&rft.date=2013-07-01&rft.volume=98&rft.issue=3&rft.spage=743&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-013-0170-x L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 14 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; channels; Darcy's law; Darcy-Brinkman equation; equations; fluid flow; fractures; Hele-Shaw equations; homogeneous materials; hydraulic conductivity; mathematical methods; Navier-Stokes equations; numerical models; Poiseuille solution; porous materials; Reynolds number DO - http://dx.doi.org/10.1007/s11242-013-0170-x ER - TY - JOUR T1 - Photoinduced charge transfer and acetone sensitivity of single-walled carbon nanotube-titanium dioxide hybrids. AN - 1370123919; 23734594 AB - The unique physical and chemical properties of single-walled carbon nanotubes (SWNTs) make them ideal building blocks for the construction of hybrid nanostructures. In addition to increasing the material complexity and functionality, SWNTs can probe the interfacial processes in the hybrid system. In this work, SWNT-TiO2 core/shell hybrid nanostructures were found to exhibit unique electrical behavior in response to UV illumination and acetone vapors. By experimental and theoretical studies of UV and acetone sensitivities of different SWNT-TiO2 hybrid systems, we established a fundamental understanding on the interfacial charge transfer between photoexcited TiO2 and SWNTs as well as the mechanism of acetone sensing. We further demonstrated a practical application of photoinduced acetone sensitivity by fabricating a microsized room temperature acetone sensor that showed fast, linear, and reversible detection of acetone vapors with concentrations in few parts per million range. JF - Journal of the American Chemical Society AU - Ding, Mengning AU - Sorescu, Dan C AU - Star, Alexander AD - United States Department of Energy, National Energy Technology Laboratory, Pittsburgh, Pennsylvania 15236, USA. Y1 - 2013/06/19/ PY - 2013 DA - 2013 Jun 19 SP - 9015 EP - 9022 VL - 135 IS - 24 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1370123919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Chemical+Society&rft.atitle=Photoinduced+charge+transfer+and+acetone+sensitivity+of+single-walled+carbon+nanotube-titanium+dioxide+hybrids.&rft.au=Ding%2C+Mengning%3BSorescu%2C+Dan+C%3BStar%2C+Alexander&rft.aulast=Ding&rft.aufirst=Mengning&rft.date=2013-06-19&rft.volume=135&rft.issue=24&rft.spage=9015&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Chemical+Society&rft.issn=1520-5126&rft_id=info:doi/10.1021%2Fja402887v LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2014-02-03 N1 - Date created - 2013-06-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/ja402887v ER - TY - JOUR T1 - Multi-regional evaluation of the U.S. electricity sector under technology and policy uncertainties: Findings from MARKAL EPA9rUS modeling AN - 1458529381; 18229926 AB - The concern of the environmental impacts of electricity generation from fossil fuels and the desire for the country to be less dependent on fossil fuels have resulted in the U.S. Government offering various incentives to promote electricity from renewable sources. The U.S. electricity generation sector faces uncertainties that include future demand, the costs of supply, and the effects of regulation policies. National policies that aim to promote "clean" energy sources may have different impacts for different areas of the country, so it is important to understand the regional effects in addition to the larger national picture. The primary purpose of this paper is to shed some light on the uncertainties associated with the outcomes of possible regulations. The study does not intend to make predictions of the probability or direction of environmental policy in the U.S. Rather, we examine a number of different scenarios and explore their possible impacts on the future of energy system. We focus on future projections for electricity generation mix, electricity costs, emissions and emissions abatement costs under different scenarios. We have examined the key regulations through analyzing various assumptions using the MARKet AUocation (MARKAL) model and the Environmental Protection Agency's Nine Region MARKAL Database (EPAUS9r). We have analyzed how command-and-control regulations and market-based environmental policy approaches could change the mix of fuels used for electricity generation, the amount of CO sub(2) emissions, and the cost of electricity in different parts of the U.S. In particular, we explore how some proposed features of different policies designs affect those outcomes and identify underlying causes of uncertainty about such outcomes. The analyzed policies lead to 6-25% reduction in total CO sub(2) emissions by 2035. The policies also result in modest increases on electricity costs nationally, but this masks a wide variety of effects across regions. The relationship between the policy's effects on costs depends on the design of the policy, regional resource endowments, and the existing generation mix of the region. Generally, the regions with existing high electricity marginal costs would tend to see only minor costs increases and the regions with low electricity marginal costs would see substantial costs increases. Modeling results illustrate that different regions have different preferences in environmental regulations policies and design. JF - Socio-Economic Planning Sciences AU - Balash, P AU - Nichols, C AU - Victor, N AD - Office of Strategic Energy Analysis & Planning, National Energy Technology Laboratory, U.S. Department of Energy, Pittsburgh, PA 15236-0940, USA, christopher.nichols@netl.doe.gov Y1 - 2013/06// PY - 2013 DA - Jun 2013 SP - 89 EP - 119 VL - 47 IS - 2 SN - 0038-0121, 0038-0121 KW - Sustainability Science Abstracts; Environment Abstracts KW - Carbon dioxide KW - USA KW - Emissions KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1458529381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Socio-Economic+Planning+Sciences&rft.atitle=Multi-regional+evaluation+of+the+U.S.+electricity+sector+under+technology+and+policy+uncertainties%3A+Findings+from+MARKAL+EPA9rUS+modeling&rft.au=Balash%2C+P%3BNichols%2C+C%3BVictor%2C+N&rft.aulast=Balash&rft.aufirst=P&rft.date=2013-06-01&rft.volume=47&rft.issue=2&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Socio-Economic+Planning+Sciences&rft.issn=00380121&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-01 N1 - Last updated - 2014-03-10 N1 - SubjectsTermNotLitGenreText - Emissions; USA ER - TY - JOUR T1 - Characterization of coal before and after supercritical CO(2) exposure via feature relocation using field-emission scanning electron microscopy AN - 1464558423; 18742424 AB - The solvent and swelling effects of supercritical CO(2) on coal structure and porosity were examined using high-resolution field-emission scanning electron microscopy (FE-SEM) and surface area techniques to investigate any irreversible CO(2) induced alterations of the micro-, meso-, and macropores. Dry, 1 in. unconfined cores of Pittsburgh and Sewickly bituminous coals were exposed to supercritical CO(2) at 15.3 MPa (2200 psig) and 328 K (55 degree C) for 104 days. Prior to CO(2) exposure, coal structure and porosity - specifically macropores (>50 nm) - were imaged using FE-SEM. After CO(2) exposure, the imaged features were relocated, reimaged, and analyzed for structural changes. Brunauer-Emmett-Teller (BET) surface areas were evaluated from the adsorption isotherms of N(2) at 77 K and P/P(0) = 0.1-0.3. Micropore surface areas were determined from the low-pressure adsorption isotherms of CO(2) at 293 K using the Dubinin-Polanyi equation. FE-SEM analysis indicated that there were no significant changes observed in the pore areas in all coal samples after CO(2) exposure. Meso- and micropore characteristics were slightly affected by supercritical CO(2) exposure. JF - Fuel AU - Kutchko, Barbara G AU - Goodman, Angela L AU - Rosenbaum, Eilis AU - Natesakhawat, Sittichai AU - Wagner, Keith AD - National Energy Technology Laboratory, United States Department of Energy, P.O. Box 10940, Pittsburgh, PA 15236, United States, angela.goodman@netl.doe.gov Y1 - 2013/04/22/ PY - 2013 DA - 2013 Apr 22 SP - 777 EP - 786 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 107 SN - 0016-2361, 0016-2361 KW - Environment Abstracts KW - Surface area KW - Fuels KW - Porosity KW - Microscopy KW - Adsorption KW - Solvents KW - Coal KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464558423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fuel&rft.atitle=Characterization+of+coal+before+and+after+supercritical+CO%282%29+exposure+via+feature+relocation+using+field-emission+scanning+electron+microscopy&rft.au=Kutchko%2C+Barbara+G%3BGoodman%2C+Angela+L%3BRosenbaum%2C+Eilis%3BNatesakhawat%2C+Sittichai%3BWagner%2C+Keith&rft.aulast=Kutchko&rft.aufirst=Barbara&rft.date=2013-04-22&rft.volume=107&rft.issue=&rft.spage=777&rft.isbn=&rft.btitle=&rft.title=Fuel&rft.issn=00162361&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Number of references - 42 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Fuels; Surface area; Microscopy; Porosity; Solvents; Adsorption; Coal ER - TY - CPAPER T1 - Using Strontium Isotopes to Identify Marcellus Shale Derived Fluids in Allegheny River Watershed, Pennsylvania, Usa T2 - 48th Meeting of the Northeastern Section of Geological Society of America AN - 1412158830; 6223815 JF - 48th Meeting of the Northeastern Section of Geological Society of America AU - WALL, Andrew AU - CAPO, Rosemary AU - STEWART, Brian AU - LAVIN, Sarah AU - Hakala, J AU - SCHROEDER, Karl AU - CASSON, Leonard AU - MONNELL, Jason AU - STATES, Stanley Y1 - 2013/03/18/ PY - 2013 DA - 2013 Mar 18 KW - Rivers KW - Isotopes KW - USA, Pennsylvania KW - Strontium KW - USA, New York, Allegheny R. KW - Shale KW - Watersheds KW - Strontium isotopes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1412158830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=48th+Meeting+of+the+Northeastern+Section+of+Geological+Society+of+America&rft.atitle=Coping+skills+training+for+school-age+mothers&rft.au=Barth%2C+Richard+P.%3BSchinke%2C+Steven+P.%3BMaxwell%2C+Josie+S.&rft.aulast=Barth&rft.aufirst=Richard&rft.date=1985-01-01&rft.volume=8&rft.issue=2&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Journal+of+Social+Service+Research&rft.issn=01488376&rft_id=info:doi/10.1300%2FJ079v08n02_04 L2 - https://gsa.confex.com/gsa/2013NE/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-06-30 N1 - Last updated - 2013-07-25 ER - TY - CPAPER T1 - Corrosion Behavior of Experimental Ferritic Steel in Coal Synthetic Gas T2 - 68th Annual Meeting of the National Association of Corrosion Engineering (CORROSION 2013) AN - 1369228151; 6214671 JF - 68th Annual Meeting of the National Association of Corrosion Engineering (CORROSION 2013) AU - Ziomek-Moroz, Malgorzata Y1 - 2013/03/17/ PY - 2013 DA - 2013 Mar 17 KW - Corrosion KW - Steel KW - Coal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1369228151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=68th+Annual+Meeting+of+the+National+Association+of+Corrosion+Engineering+%28CORROSION+2013%29&rft.atitle=Corrosion+Behavior+of+Experimental+Ferritic+Steel+in+Coal+Synthetic+Gas&rft.au=Ziomek-Moroz%2C+Malgorzata&rft.aulast=Ziomek-Moroz&rft.aufirst=Malgorzata&rft.date=2013-03-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=68th+Annual+Meeting+of+the+National+Association+of+Corrosion+Engineering+%28CORROSION+2013%29&rft.issn=&rft_id=info:doi/ L2 - http://www.nace.org/cstm/Events/Schedule.aspx?id=3c0b3545-0379-e111-ba5a-0050569a007b LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-05-31 N1 - Last updated - 2013-06-19 ER - TY - JOUR T1 - Integrating 3D seismic curvature and curvature gradient attributes for fracture characterization; methodologies and interpretational implications AN - 1366816246; 2013-046088 AB - In 3D seismic interpretation, curvature is a popular attribute that depicts the geometry of seismic reflectors and has been widely used to detect faults in the subsurface; however, it provides only part of the solutions to subsurface structure analysis. This study extends the curvature algorithm to a new curvature gradient algorithm and integrates both algorithms for fracture detection using a 3D seismic test data set over Teapot Dome (Wyoming). In fractured reservoirs at Teapot Dome formed by tectonic folding and faulting, curvature helps define the crestal portion of reservoirs that is associated with strong seismic amplitude and high oil productivity. In contrast, curvature gradient helps define the regional northwest-trending and the cross-regional northeast-trending lineaments that are associated with weak seismic amplitude and low oil productivity. In concert with previous reports from image logs, cores, and outcrops, an integrated seismic curvature and curvature gradient analysis suggests that curvature might help define areas of enhanced potential to form tensile fractures, whereas curvature gradient might help define zones of enhanced potential to develop shear fractures. In fractured reservoirs at Teapot Dome where faulting and fault-related folding contribute dominantly to the formation and evolution of fractures, curvature and curvature gradient attributes can be potentially applied to differentiate fracture mode, to predict fracture intensity and orientation, to evaluate fracture volume and connectivity, and to model fracture networks. JF - Geophysics AU - Gao, Dengliang Y1 - 2013/03/01/ PY - 2013 DA - 2013 Mar 01 SP - O21 EP - O31 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 78 IS - 2 SN - 0016-8033, 0016-8033 KW - United States KW - seismic attributes KW - Teapot Dome KW - shear zones KW - three-dimensional models KW - geophysical methods KW - Natrona County Wyoming KW - seismic methods KW - reservoir rocks KW - Wyoming KW - fractures KW - naturally fractured reservoirs KW - shear KW - algorithms KW - interpretation KW - faults KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366816246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Integrating+3D+seismic+curvature+and+curvature+gradient+attributes+for+fracture+characterization%3B+methodologies+and+interpretational+implications&rft.au=Gao%2C+Dengliang&rft.aulast=Gao&rft.aufirst=Dengliang&rft.date=2013-03-01&rft.volume=78&rft.issue=2&rft.spage=O21&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2Fgeo2012-0190.1 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 47 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - algorithms; faults; fractures; geophysical methods; interpretation; Natrona County Wyoming; naturally fractured reservoirs; reservoir rocks; seismic attributes; seismic methods; shear; shear zones; Teapot Dome; three-dimensional models; United States; Wyoming DO - http://dx.doi.org/10.1190/geo2012-0190.1 ER - TY - JOUR T1 - Synthesis of one-dimensional SiC nanostructures from a glassy buckypaper. AN - 1321338515; 23427809 AB - A simple and scalable synthetic strategy was developed for the fabrication of one-dimensional SiC nanostructures-nanorods and nanowires. Thin sheets of single-walled carbon nanotubes (SWNTs) were prepared by vacuum filtration and were washed repeatedly with sodium silicate (Na2SiO3) solution. The resulting "glassy buckypaper" was heated at 1300-1500 °C under Ar/H2 to allow a solid state reaction between C and Si precursors to form a variety of SiC nanostructures. The morphology and crystal structures of SiC nanorods and nanowires were characterized using scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), energy-dispersive X-ray spectroscopy (EDX), electron diffraction (ED), and X-ray diffraction (XRD) techniques. Furthermore, electrical conductance measurements were performed on SiC nanorods, demonstrating their potential applications in high-temperature sensors and control systems. JF - ACS applied materials & interfaces AU - Ding, Mengning AU - Star, Alexander AD - U.S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, Pennsylvania 15236, USA. Y1 - 2013/03// PY - 2013 DA - March 2013 SP - 1928 EP - 1936 VL - 5 IS - 6 KW - Carbon Compounds, Inorganic KW - 0 KW - Nanotubes, Carbon KW - Silicon Compounds KW - silicon carbide KW - WXQ6E537EW KW - Index Medicus KW - Nanotubes -- chemistry KW - Nanowires -- chemistry KW - Nanotubes, Carbon -- chemistry KW - Carbon Compounds, Inorganic -- chemistry KW - Nanostructures -- chemistry KW - Silicon Compounds -- chemistry KW - Nanotechnology -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1321338515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=MCN%3A+The+American+Journal+of+Maternal%2FChild+Nursing&rft.atitle=%22Waiting%22%3A+As+experienced+by+women+hospitialized+during+the+antepartum+period&rft.au=Thornburg%2C+Patricia&rft.aulast=Thornburg&rft.aufirst=Patricia&rft.date=2002-07-01&rft.volume=27&rft.issue=4&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=MCN%3A+The+American+Journal+of+Maternal%2FChild+Nursing&rft.issn=0361929X&rft_id=info:doi/10.1097%2F00005721-200207000-00011 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2013-09-06 N1 - Date created - 2013-03-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/am3031008 ER - TY - JOUR T1 - Using strontium isotopes to identify Marcellus Shale derived fluids in Allegheny River watershed, Pennsylvania, USA AN - 1510396136; 2014-021020 AB - Potential water quality issues associated with accelerating natural gas production from the Marcellus Shale in New York, Pennsylvania, and West Virginia point to the need for geochemical monitoring of stream water in the producing regions. However, effects from past and ongoing coal, oil, and gas production present a challenge in defining geochemical baselines that are necessary for accurate assessment of surface water impacts from unconventional shale gas development. In this study, focused on the Allegheny River basin of western Pennsylvania within the Marcellus exploration region, we use strontium (Sr) isotopes combined with elemental analysis to assess its ability to distinguish between sources such as Marcellus-derived produced waters, abandoned coal mine drainage (AMD), fluids from conventional Upper Devonian gas production, and fly ash impoundments. Preliminary results from stream water collected from approximately 45 sites along the Allegheny River and seven of its tributaries show that Sr varies across the watershed, with lower concentrations (mean [Sr] = 82 mu g/L) in the upper reaches and tributaries, and increasing concentrations downstream, reaching approximately 200 mu g/L where the Allegheny River enters the Ohio River near Pittsburgh. Anomalous Sr concentrations (as high as 2,500 mu g/L) are observed in two tributaries with high densities of centralized wastewater treatment (CWT) facilities. Preliminary Sr isotope data for two seasons indicate that most of the Allegheny River and its tributaries cluster around a narrow range of (super 87) Sr/ (super 86) Sr values, from 0.7125 to 0.7130 (= +47.3 to +53.8, where is the deviation of the (super 87) Sr/ (super 86) Sr from that of seawater in parts per ten thousand). However, values as high as +62 and as low as +35 are observed in tributaries with high Sr concentrations. While Sr concentrations are expected to vary across the watershed due to differences in silicate and carbonate weathering sources (as indicated by Mg/Na and Ca/Na ratios), in some cases anomalous Sr concentrations and isotopic compositions are consistent with mixing with fluids derived from natural gas production. The results also suggest that Sr isotope analysis combined with geochemical data can distinguish influx of produced water from Marcellus shale vs. Upper Devonian sources into streams. JF - Abstracts with Programs - Geological Society of America AU - Wall, Andrew J AU - Capo, Rosemary C AU - Stewart, Brian W AU - Lavin, Sarah M AU - Hakala, J Alexandra AU - Schroeder, Karl T AU - Casson, Leonard W AU - Monnell, Jason D AU - States, Stanley AU - Anonymous Y1 - 2013/02// PY - 2013 DA - February 2013 SP - 48 PB - Geological Society of America (GSA), Boulder, CO VL - 45 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - water quality KW - isotopes KW - waste water KW - stable isotopes KW - Allegheny River basin KW - sampling KW - Marcellus Shale KW - tracers KW - drainage basins KW - alkaline earth metals KW - pollutants KW - Paleozoic KW - isotope ratios KW - surface water KW - pollution KW - fluid flow KW - Sr-87/Sr-86 KW - Middle Devonian KW - Devonian KW - metals KW - Pennsylvania KW - water resources KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1510396136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+strontium+isotopes+to+identify+Marcellus+Shale+derived+fluids+in+Allegheny+River+watershed%2C+Pennsylvania%2C+USA&rft.au=Wall%2C+Andrew+J%3BCapo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BLavin%2C+Sarah+M%3BHakala%2C+J+Alexandra%3BSchroeder%2C+Karl+T%3BCasson%2C+Leonard+W%3BMonnell%2C+Jason+D%3BStates%2C+Stanley%3BAnonymous&rft.aulast=Wall&rft.aufirst=Andrew&rft.date=2013-02-01&rft.volume=45&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 48th annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-03-27 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Allegheny River basin; Devonian; drainage basins; fluid flow; isotope ratios; isotopes; Marcellus Shale; metals; Middle Devonian; Paleozoic; Pennsylvania; pollutants; pollution; sampling; Sr-87/Sr-86; stable isotopes; strontium; surface water; tracers; United States; waste water; water quality; water resources ER - TY - JOUR T1 - CO (sub 2) sequestration potential of Charqueadas coal field in Brazil AN - 1429841667; 2013-068898 AB - Although coal is not the primary source of energy in Brazil there is growing interest to evaluate the potential of coal from the south of the country for various activities. The I2B coal seam in the Charqueadas coal field has been considered a target for enhanced coal bed methane production and CO (sub 2) sequestration. A detailed experimental study of the samples from this seam was conducted at the NETL with assistance from the Pontificia Universidade Catolica Do Rio Grande Do Sul. Such properties as sorption capacity, internal structure of the samples, porosity and permeability were of primary interest in this characterization study. The samples used were low rank coals (high volatile bituminous and sub-bituminous) obtained from the I2B seam. It was observed that the temperature effect on adsorption capacity correlates negatively with as-received water and mineral content. Langmuir CO (sub 2) adsorption capacity of the coal samples ranged 0.61-2.09 mmol/g. The upper I2B seam appears to be overall more heterogeneous and less permeable than the lower I2B seam. The lower seam coal appears to have a large amount of micro-fractures that do not close even at 11 MPa of confining pressure. Abstract Copyright (2013) Elsevier, B.V. JF - International Journal of Coal Geology AU - Santarosa, Cristian S AU - Crandall, Dustin AU - Haljasmaa, Igor V AU - Hur, Tae-Bong AU - Fazio, James J AU - Warzinski, Robert P AU - Heemann, Roberto AU - Ketzer, J Marcelo M AU - Romanov, Vyacheslav N Y1 - 2013/02/01/ PY - 2013 DA - 2013 Feb 01 SP - 25 EP - 34 PB - Elsevier, Amsterdam VL - 106 SN - 0166-5162, 0166-5162 KW - sorption KW - carbon sequestration KW - natural gas KW - petroleum KW - coal seams KW - adsorption KW - production KW - porosity KW - bituminous coal KW - carbon dioxide KW - South America KW - sedimentary rocks KW - coal KW - Charqueadas coal field KW - Brazil KW - coalbed methane KW - Rio Grande do Sul Brazil KW - confining pressure KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 06B:Petrology of coal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1429841667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=CO+%28sub+2%29+sequestration+potential+of+Charqueadas+coal+field+in+Brazil&rft.au=Santarosa%2C+Cristian+S%3BCrandall%2C+Dustin%3BHaljasmaa%2C+Igor+V%3BHur%2C+Tae-Bong%3BFazio%2C+James+J%3BWarzinski%2C+Robert+P%3BHeemann%2C+Roberto%3BKetzer%2C+J+Marcelo+M%3BRomanov%2C+Vyacheslav+N&rft.aulast=Santarosa&rft.aufirst=Cristian&rft.date=2013-02-01&rft.volume=106&rft.issue=7&rft.spage=815&rft.isbn=&rft.btitle=&rft.title=Archives+of+General+Psychiatry&rft.issn=0003990X&rft_id=info:doi/10.1001%2Farchpsyc.1979.01780070093011 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2013-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2013-09-05 N1 - SubjectsTermNotLitGenreText - adsorption; bituminous coal; Brazil; carbon dioxide; carbon sequestration; Charqueadas coal field; coal; coal seams; coalbed methane; confining pressure; natural gas; permeability; petroleum; porosity; production; Rio Grande do Sul Brazil; sedimentary rocks; sorption; South America DO - http://dx.doi.org/10.1016/j.coal.2013.01.005 ER - TY - JOUR T1 - Immobilization of amino acid ionic liquids into nanoporous microspheres as robust sorbents for CO sub(2) capture AN - 1372657224; 18158487 AB - Supported nanoporous microspheres immobilized with amino acid ionic liquids (AAILs) as robust sorbents were developed for CO sub(2) capture. AAILs could be facilely immobilized into porous support materials. The developed sorbents exhibited fast kinetics as well as good sorption capacity, and can be regenerated and reused. The presented strategy may pave the way for developing AAIL-functionalized sorbents with high capacity and fast CO sub(2) transport kinetics. JF - Journal of materials chemistry. A, Materials for energy and sustainability AU - Wang, Xianfeng AU - Akhmedov, Novruz G AU - Duan, Yuhua AU - Luebke, David AU - Li, Bingyun AD - National Energy Technology Laboratory-Regional University Alliance (NETL-RUA); USA; , bili@hsc.wvu.edu Y1 - 2013/02// PY - 2013 DA - Feb 2013 SP - 2978 EP - 2982 PB - Royal Society of Chemistry VL - 1 IS - 9 SN - 2050-7488, 2050-7488 KW - Sustainability Science Abstracts KW - Sorption KW - Sorbents KW - Amino acids KW - Kinetics KW - Carbon dioxide KW - Sustainability KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1372657224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.atitle=Immobilization+of+amino+acid+ionic+liquids+into+nanoporous+microspheres+as+robust+sorbents+for+CO+sub%282%29+capture&rft.au=Wang%2C+Xianfeng%3BAkhmedov%2C+Novruz+G%3BDuan%2C+Yuhua%3BLuebke%2C+David%3BLi%2C+Bingyun&rft.aulast=Wang&rft.aufirst=Xianfeng&rft.date=2013-02-01&rft.volume=1&rft.issue=9&rft.spage=2978&rft.isbn=&rft.btitle=&rft.title=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.issn=20507488&rft_id=info:doi/10.1039%2Fc3ta00768e LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-07-01 N1 - Number of references - 33 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Sorption; Sorbents; Amino acids; Kinetics; Carbon dioxide; Sustainability DO - http://dx.doi.org/10.1039/c3ta00768e ER - TY - JOUR T1 - Moleculal dynamics simulations of turbostratic hydrated montmorillonite with and without inercalated carbon dioxide AN - 1832675394; 768087-56 JF - Program and Abstracts - Annual Meeting of the Clay Minerals Society AU - Myshakin, Evgeniy M AU - Makaremi, Meysam AU - Romanov, Vyacheslav N AU - Jordan, Kenneth D AU - Guthrie, George D Y1 - 2013 PY - 2013 DA - 2013 SP - 182 PB - Clay Minerals Society, Aurora, CO VL - 50 SN - 1550-2244, 1550-2244 KW - silicates KW - mineral interlayer KW - hydrates KW - clay mineralogy KW - crystal structure KW - simulation KW - layered materials KW - clay minerals KW - carbon dioxide KW - sheet silicates KW - molecular dynamics KW - turbostratic structure KW - montmorillonite KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832675394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+Annual+Meeting+of+the+Clay+Minerals+Society&rft.atitle=Moleculal+dynamics+simulations+of+turbostratic+hydrated+montmorillonite+with+and+without+inercalated+carbon+dioxide&rft.au=Myshakin%2C+Evgeniy+M%3BMakaremi%2C+Meysam%3BRomanov%2C+Vyacheslav+N%3BJordan%2C+Kenneth+D%3BGuthrie%2C+George+D&rft.aulast=Myshakin&rft.aufirst=Evgeniy&rft.date=2013-01-01&rft.volume=50&rft.issue=&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Annual+Meeting+of+the+Clay+Minerals+Society&rft.issn=15502244&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - carbon dioxide; clay mineralogy; clay minerals; crystal structure; hydrates; layered materials; mineral interlayer; molecular dynamics; montmorillonite; sheet silicates; silicates; simulation; turbostratic structure ER - TY - JOUR T1 - Molecular models of carbon dioxide intercalation in montmorillonite AN - 1832674715; 768086-34 JF - Program and Abstracts - Annual Meeting of the Clay Minerals Society AU - Cygan, Randall T AU - Myshakin, Evgeniy M AU - Romanov, Vyacheslav N AU - Saidi, Wissam A AU - Jordan, Kenneth D AU - ? Y1 - 2013 PY - 2013 DA - 2013 SP - 40 PB - Clay Minerals Society, Aurora, CO VL - 50 SN - 1550-2244, 1550-2244 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832674715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+Annual+Meeting+of+the+Clay+Minerals+Society&rft.atitle=Molecular+models+of+carbon+dioxide+intercalation+in+montmorillonite&rft.au=Cygan%2C+Randall+T%3BMyshakin%2C+Evgeniy+M%3BRomanov%2C+Vyacheslav+N%3BSaidi%2C+Wissam+A%3BJordan%2C+Kenneth+D%3B%3F&rft.aulast=Cygan&rft.aufirst=Randall&rft.date=2013-01-01&rft.volume=50&rft.issue=&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Annual+Meeting+of+the+Clay+Minerals+Society&rft.issn=15502244&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Annual meeting of the Clay Minerals Society N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - CO N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Using strontium isotopes to test stratigraphic isolation of injected and formation waters during hydraulic fracturing AN - 1629941877; 2014-098432 AB - High volume slick water hydraulic fracture stimulation is necessary for unconventional shale gas production, leading to concerns about communication between the target formation and overlying units. We will present pre- and post-hydraulic fracturing strontium (Sr) isotope data from a well-characterized Marcellus Shale horizontal drilling site in Greene County, Pennsylvania, in which vertical gas wells tapping the overlying Upper Devonian sands are in close proximity. The Upper Devonian gas-producing formations are >3,000 ft. above the Marcellus Formation and approximately 2,000 ft. below fresh water aquifers. This provides an opportunity to test the assumption that hydraulic fracturing is confined to the target formation, and that injected and formation waters do not migrate to overlying units. In order for Sr isotopes to be an effective tracer for fluid migration and mixing, there must be a large enough difference between the (super 87) Sr/ (super 86) Sr ratio of the end-member fluids. Samples collected at gas-water separators and/or stock tanks from four wells tapping Upper Devonian sands at this site yield (super 87) Sr/ (super 86) Sr values from 0.7199 to 0.7209 (typical analytical uncertainty + or -0.00002). This is significantly different from produced waters from horizontal wells in the Marcellus Formation from the same site, which range from 0.7113 to 0.7116, well within the range of values previously determined for Marcellus produced waters across Pennsylvania (0.7101-0.7121; Chapman et al., 2012, Env. Sci. Technol. 46, 3545-3553). Because Marcellus Formation produced waters can have Sr concentrations that are an order of magnitude greater than those of the Upper Devonian waters in this region, (super 87) Sr/ (super 86) Sr ratios of the latter are sensitive to small (>1-2%) intrusions of the former. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Kolesar, Courtney A AU - Capo, Rosemary C AU - Wall, Andrew J AU - Stewart, Brian W AU - Schroder, Karl AU - Hammack, Richard W AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - shale gas KW - isotopes KW - natural gas KW - Appalachians KW - petroleum KW - Appalachian Plateau KW - production KW - stable isotopes KW - reservoir rocks KW - ground water KW - Marcellus Shale KW - stratigraphic units KW - Upper Devonian KW - water KW - hydraulic fracturing KW - North America KW - alkaline earth metals KW - Paleozoic KW - isotope ratios KW - connate waters KW - Sr-87/Sr-86 KW - Middle Devonian KW - Devonian KW - boreholes KW - metals KW - Greene County Pennsylvania KW - Pennsylvania KW - strontium KW - 29A:Economic geology, geology of energy sources KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629941877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Using+strontium+isotopes+to+test+stratigraphic+isolation+of+injected+and+formation+waters+during+hydraulic+fracturing&rft.au=Kolesar%2C+Courtney+A%3BCapo%2C+Rosemary+C%3BWall%2C+Andrew+J%3BStewart%2C+Brian+W%3BSchroder%2C+Karl%3BHammack%2C+Richard+W%3BAnonymous&rft.aulast=Kolesar&rft.aufirst=Courtney&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/kol.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 1 N1 - PubXState - OK N1 - Last updated - 2014-12-04 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Appalachian Plateau; Appalachians; boreholes; connate waters; Devonian; Greene County Pennsylvania; ground water; hydraulic fracturing; isotope ratios; isotopes; Marcellus Shale; metals; Middle Devonian; natural gas; North America; Paleozoic; Pennsylvania; petroleum; production; reservoir rocks; shale gas; Sr-87/Sr-86; stable isotopes; stratigraphic units; strontium; United States; Upper Devonian; water ER - TY - JOUR T1 - Measurement of air quality impacts during hydraulic fracturing on a Marcellus Shale well pad in Greene County, Pennsylvania AN - 1623273287; 2014-088318 AB - NETL's mobile air monitoring laboratory was deployed to a Marcellus Shale well pad in Greene County, Pennsylvania to collect measurements of pollutant concentrations before and during hydraulic fracturing. A comparison of background ambient concentrations of pollutants associated with natural gas operations with concentrations of the pollutants measured during the various phases of hydrofracturing operations enabled an evaluation of the impact the activities had on local air quality. Instruments in the laboratory measured the ambient concentrations of methane, carbon dioxide, carbon isotopes in methane and carbon dioxide, volatile organic compounds, nitrogen oxides, ozone, particulate matter, sulfur dioxide, ammonia, organic and elemental carbon aerosols, as well as several meteorological parameters. Monitoring commenced on March 8, 2012 and ended on June 19, 2012. During this time, there were periods of no well pad activity that could be compared to periods of hydraulic fracturing activities. Three of six horizontal wells were hydraulically fractured from April 24 to May 7, and the other three wells where hydraulically fractured from June 4-11. During periods of low or no activity on the well pad, measured pollutants registered typical atmospheric background values with few exceptions. However, significant increases in concentrations of methane, NOx, PM10, and several VOCs were observed during the two hydraulic fracturing operations. Methane concentration and isotope data were used to distinguish between biogenic and thermogenic methane. This technique provides a fingerprint of fugitive methane emissions from the wells. During the fracturing of the first three wells, peaks in methane concentration correlated with changes in the methane isotopic signature to reflect influence of thermogenic methane. A similar pattern was observed during the fracturing of the second three wells, although the most significant evidence of thermogenic methane occurred afterward during flowback. Preliminary results from this project suggest that although measurements did not at any time exceed applicable exposure limits or air quality standards, there were discernible differences in measurements collected during the various phases of operation at the well pad. A complete evaluation of all the collected data will be presented, with estimates of well pad emissions distinguished from background conditions. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Pekney, Natalie AU - Veloski, Garret AU - Reeder, Matthew AU - Tamilia, Joseph AU - Diehl, Rodney AU - Hammack, Richard W AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - isotopes KW - aliphatic hydrocarbons KW - Appalachians KW - Appalachian Plateau KW - environmental analysis KW - air pollution KW - laboratory studies KW - Marcellus Shale KW - hydraulic fracturing KW - North America KW - monitoring KW - methane KW - pollutants KW - Paleozoic KW - background level KW - pollution KW - alkanes KW - measurement KW - organic compounds KW - Middle Devonian KW - Devonian KW - hydrocarbons KW - Greene County Pennsylvania KW - Pennsylvania KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623273287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Measurement+of+air+quality+impacts+during+hydraulic+fracturing+on+a+Marcellus+Shale+well+pad+in+Greene+County%2C+Pennsylvania&rft.au=Pekney%2C+Natalie%3BVeloski%2C+Garret%3BReeder%2C+Matthew%3BTamilia%2C+Joseph%3BDiehl%2C+Rodney%3BHammack%2C+Richard+W%3BAnonymous&rft.aulast=Pekney&rft.aufirst=Natalie&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/pek.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-11-13 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - air pollution; aliphatic hydrocarbons; alkanes; Appalachian Plateau; Appalachians; background level; Devonian; environmental analysis; Greene County Pennsylvania; hydraulic fracturing; hydrocarbons; isotopes; laboratory studies; Marcellus Shale; measurement; methane; Middle Devonian; monitoring; North America; organic compounds; Paleozoic; Pennsylvania; pollutants; pollution; United States ER - TY - JOUR T1 - Evolving water management practices in shale gas development AN - 1612268702; 2014-082224 AB - Environmental concerns resulting from the large-scale development of shale gas have changed the way industry obtains, transports, recovers, and ultimately disposes of water. In the early years of shale gas development, water for hydraulic fracturing was largely obtained from municipal taps, resulting in public concerns about impacts on local drinking water supplies, especially in semi-arid locations like Texas. Drillers have since discovered that much cheaper water of far lower quality will work for hydraulic fracturing in most shales, and a combination of recovered flowback fluid and lower-quality water such as wastewater treatment effluent are now generally used. Transporting large volumes of water to well sites has also changed, where the current practice is to use a centralized impoundment to collect raw water and then send it to nearby well sites via a temporary, overland pipeline. This greatly reduces the number of tanker trucks driving on fragile dirt roads in sensitive stream headwater areas. Such improvements are largely the result of economics as well as regulations. However, some new problems have arisen. For example, disposal of high TDS flowback from the Marcellus Shale was initially done using a conventional wastewater treatment plant, which allowed the dissolved salts to pass through into freshwater streams, often resulting in fish kills. Regulatory changes and higher disposal costs have reduced this impact by encouraging drillers to recycle and dispose of their flowback water via Underground Injection Control (UIC) wells. This has resulted in a new problem of induced seismicity caused by large volumes of injected wastewater. Several new issues have come to light from recent research. These include the potential for the drilling process itself to create groundwater surges in shallow aquifers, entraining pre-existing methane gas, minerals, and sediment. This can affect the taste and appearance of groundwater in nearby water wells, and may increase methane concentrations to explosive levels. Another concern is that toxic metals and radionuclides associated with black shale may oxidize at the surface and leach from any drill cuttings left behind. These issues will need to be addressed by industry practice, regulations, or both, but as evidenced by previous challenges, they can also be viewed as opportunities to improve economics and public opinion. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Soeder, Daniel J AU - Rodriguez, Rebecca S AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - hydraulic fracturing KW - toxic materials KW - methane KW - shale gas KW - public awareness KW - waste water KW - natural gas KW - aliphatic hydrocarbons KW - water management KW - solutes KW - pollution KW - petroleum KW - alkanes KW - environmental effects KW - ground water KW - organic compounds KW - fluid injection KW - seismicity KW - water treatment KW - hydrocarbons KW - flowback water KW - economics KW - waste disposal KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1612268702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Evolving+water+management+practices+in+shale+gas+development&rft.au=Soeder%2C+Daniel+J%3BRodriguez%2C+Rebecca+S%3BAnonymous&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/soe.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-16 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; economics; environmental effects; flowback water; fluid injection; ground water; hydraulic fracturing; hydrocarbons; methane; natural gas; organic compounds; petroleum; pollution; public awareness; seismicity; shale gas; solutes; toxic materials; waste disposal; waste water; water management; water treatment ER - TY - JOUR T1 - Deepwater and ultra-deepwater blowout and offshore spill model AN - 1612268361; 2014-082207 AB - To assist with risk assessment to prevent future hydrocarbon spills and provide a comprehensive tool for response planning, we have developed an integrated water column modeling system for simulating offshore oil spills resulting from deepwater (>500ft) and ultra-deepwater (>5,000ft) blowouts. The water column modeling system is comprised of multiple models for the plume phase, the advection and diffusion dominated transport phase, an intermediary model between the two, and other models for handling the physical properties of oil/gas and the weathering of crude oil. The plume model simulates the buoyant jets and plumes emerging from a deepwater blowout source using Lagrangian control-volume analysis to track the movement and shape of the plume as it travels through the water column. The control-volumes are driven by buoyancy and the entrainment of ambient seawater, taking into account the ambient conditions, droplet sizes, gas bubbles, and gas hydrates. A newly developed jet coefficient and a 3-phase approach to droplet terminal velocities allow the model to balance between jet-like and plume-like behavior. The plume model performed capably when validated against the North Sea field experiments, and the use of the jet coefficient has provided improved simulations. Once reaching a terminal level, the intermediary model converts the control-volumes into Lagrangian parcel elements based on a probability density surface created from a moving oil concentration centroid, allowing for skewed and non-normal distribution of crude concentrations and droplet sizes. From there, the transport and weathering model takes over to simulate the final fate and distribution of oil, accounting for non-surfacing plumes and control volume sources. The development of this modeling system from the ground up has allowed for the adaptation of the entire system towards ultra-deepwater blowouts instead of simply assigning a deepwater plume model to a traditional oil spill process model. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Sim, Lawrence AU - Graham, James AU - Rose, Kelly AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - sea water KW - geologic hazards KW - contaminant plumes KW - pollution KW - petroleum KW - simulation KW - weathering KW - deep-water environment KW - transport KW - planning KW - oil spills KW - natural hazards KW - crude oil KW - risk assessment KW - ocean floors KW - blowouts KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1612268361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Deepwater+and+ultra-deepwater+blowout+and+offshore+spill+model&rft.au=Sim%2C+Lawrence%3BGraham%2C+James%3BRose%2C+Kelly%3BAnonymous&rft.aulast=Sim&rft.aufirst=Lawrence&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/sim.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-16 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - blowouts; contaminant plumes; crude oil; deep-water environment; geologic hazards; natural hazards; ocean floors; oil spills; petroleum; planning; pollution; risk assessment; sea water; simulation; transport; weathering ER - TY - JOUR T1 - Using stable isotopes to detect potential inter-formation mixing of fluids and gases following the hydraulic fracturing of Marcellus Shale wells at NETLs Greene County test site in southwestern Pennsylvania AN - 1612268089; 2014-082202 AB - Stable isotope signatures of produced gas and waters are being monitored at a location in Greene County, Pennsylvania that contains eight Marcellus Shale gas wells (six horizontal and two vertical wells) and seven vertical Upper Devonian gas wells. Natural gas and produced water samples were collected from two vertical Marcellus Shale wells and seven Upper Devonian wells before and after the hydraulic fracturing of the nearby horizontal Marcellus Shale wells. Analyses of samples collected prior to hydraulic fracturing demonstrate that the gas composition, carbon and hydrogen isotope signatures of methane and ethane, oxygen and hydrogen isotope signatures of water, and carbon isotope signatures of dissolved inorganic carbon in the water and gas produced from Upper Devonian sands are different from that produced from the Marcellus Shale. Hence, we propose that spatiotemporal stable isotope monitoring of different water and gas sources before, during, and after hydraulic fracturing can provide insight into possible gas and fluid migrations. The analyses of produced gas and water samples collected post-hydraulic fracturing is currently underway and will be discussed. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Sharma, Shikha AU - Sack, Andrea AU - Bowman, Lindsey AU - Schroder, Karl AU - Hammack, Richard W AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - isotopes KW - natural gas KW - Appalachians KW - petroleum KW - Appalachian Plateau KW - production KW - stable isotopes KW - oil wells KW - Marcellus Shale KW - geochemistry KW - Upper Devonian KW - water KW - hydraulic fracturing KW - North America KW - migration KW - monitoring KW - Paleozoic KW - connate waters KW - Middle Devonian KW - Devonian KW - southwestern Pennsylvania KW - Greene County Pennsylvania KW - Pennsylvania KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1612268089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Early+Human+Development&rft.atitle=Fetal+response+to+induced+maternal+stress&rft.au=DiPietro%2C+Janet+A.%3BCostigan%2C+Kathleen+A.%3BGurewitsch%2C+Edith+D.&rft.aulast=DiPietro&rft.aufirst=Janet&rft.date=2003-11-01&rft.volume=74&rft.issue=2&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Early+Human+Development&rft.issn=03783782&rft_id=info:doi/10.1016%2Fj.earlhumdev.2003.07.001 L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/sharma2.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-16 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - Appalachian Plateau; Appalachians; connate waters; Devonian; geochemistry; Greene County Pennsylvania; hydraulic fracturing; isotopes; Marcellus Shale; Middle Devonian; migration; monitoring; natural gas; North America; oil wells; Paleozoic; Pennsylvania; petroleum; production; southwestern Pennsylvania; stable isotopes; United States; Upper Devonian; water ER - TY - JOUR T1 - Clay mineralogy and cation exchange in the Marcellus Shale AN - 1612267977; 2014-082234 AB - The mineral composition of Marcellus Shale was determined using powder X-ray diffraction scans of 14 core and outcrop samples collected throughout the unit's geographic and stratigraphic extent. Each of the 10 outcrop and 4 core samples was separated into coarse and fine components which were analyzed separately. Samples were prepared using high-purity corundum as an internal standard and X-ray diffraction data were analyzed using RockJock11 software. Illite is present in all examined samples at concentrations ranging from approximately 20 wt% to greater than 60 wt%. Preliminary examination of the illite diffraction suggests that there are few if any smectite layers present. On the other hand, chlorite is present in some samples and absent in others. Calcite also varies widely from below the detection limit to greater than 50 wt%. Dolomite is present at trace concentrations. Quartz varies from roughly 20 wt% to more than 35 wt%. As an independent check on the presence of expandable layers in the clay-fraction of the samples, cation exchange capacity (CEC) was measured using UV-VIS spectrophotometry of a copper complex (Cu-ethylenediamine) which adsorbs strongly to the exchange sites present in the sample. CEC values from the Marcellus Shale are within the typical ranges of kaolinite and illite and are consistent with the absence of smectite. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Staub, Patrick AU - Benelli, Paolo AU - Bank, Tracy AU - Giese, Rossman AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - silicates KW - cation exchange capacity KW - X-ray diffraction data KW - silica minerals KW - Paleozoic KW - smectite KW - kaolinite KW - illite KW - cores KW - clay minerals KW - calcite KW - dolomite KW - chlorite KW - mineral composition KW - Middle Devonian KW - Devonian KW - Marcellus Shale KW - quartz KW - sheet silicates KW - outcrops KW - framework silicates KW - chlorite group KW - carbonates KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1612267977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Clay+mineralogy+and+cation+exchange+in+the+Marcellus+Shale&rft.au=Staub%2C+Patrick%3BBenelli%2C+Paolo%3BBank%2C+Tracy%3BGiese%2C+Rossman%3BAnonymous&rft.aulast=Staub&rft.aufirst=Patrick&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/st.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-16 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - calcite; carbonates; cation exchange capacity; chlorite; chlorite group; clay minerals; cores; Devonian; dolomite; framework silicates; illite; kaolinite; Marcellus Shale; Middle Devonian; mineral composition; outcrops; Paleozoic; quartz; sheet silicates; silica minerals; silicates; smectite; X-ray diffraction data ER - TY - JOUR T1 - delta 7Li of saline water; northern Appalachian Basin and Gulf Coast sedimentary basin, USA AN - 1612263313; 2014-080730 AB - Hydraulic fracturing of shale to stimulate natural gas, natural gas liquids, and oil production liberates shale pore waters, and these "produced waters" accompany the target gas and/or liquid products. Formation water from conventional oil and gas production is usually from sandstone or carbonate. Produced waters from shale hydraulic fracturing provide a new opportunity for understanding water-rock interaction in shale reservoir rocks. We used multi-collector ICP-MS to determine the stable isotope ratio of lithium in formation waters from conventional oil and gas reservoirs in the Gulf Coast Sedimentary Basin (GCSB), and in produced waters from hydraulically fractured shales of the Middle and Upper Devonian Marcellus Formation in the northern Appalachian Basin in Pennsylvania. Marcellus produced waters and some GCSB formation waters contain elevated Li/Cl*10,000 ( approximately 10 to 15 vs. <1 to approximately 12 for other oil-and-gas-associated waters and seawater) as well as elevated Li/Mg and Br/Cl. For most fluids analyzed, delta 7Li varies approximately inversely with concentration, similar to other published data for formation waters. The delta 7Li of the shale fluids analyzed ranges from approximately 8 to 13 per mil, much lighter than average seawater ( approximately NE31 per mil), and cluster at the lowest delta 7Li and highest Li concentrations of formation waters published so far. One sample of GCSB formation water has an anomalously low concentration of Li for its delta 7Li value, possibly due to contribution of clay dehydration water. The deep-basin settings of the Marcellus produced-water and GCSB formation water suggest strong influence on Li from clay minerals because clays are the probably the largest reservoir of Li. Previously published experiments on smectite-to-illite transformation, an important diagenetic reaction in sedimentary basins, suggest that fluids should be isotopically heavier than the transformed illite and that Li should partition into the clays. If seawater or evaporated seawater are buried with the sediments, then produced waters should have delta 7Li heavier than seawater, not lighter, and total Li concentration should be lower. Our data suggest that either the experimental data do not represent in situ processes, or that there is another source of isotopically light Li being added to pore water in sedimentary basins. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Macpherson, Gwendolyn L AU - Capo, Rosemary C AU - Stewart, Brian W AU - Phan, Thai AU - Schroder, Karl AU - Hammack, Richard W AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - silicates KW - isotopes KW - sedimentary basins KW - Appalachians KW - petroleum KW - Appalachian Plateau KW - salt water KW - stable isotopes KW - reservoir rocks KW - sedimentary rocks KW - Appalachian Basin KW - Marcellus Shale KW - basins KW - Li-7/Li-6 KW - hydraulic fracturing KW - North America KW - shale KW - Paleozoic KW - lithium KW - isotope ratios KW - connate waters KW - alkali metals KW - Gulf Coastal Plain KW - clay minerals KW - Middle Devonian KW - Devonian KW - metals KW - sheet silicates KW - Pennsylvania KW - clastic rocks KW - pore water KW - 29A:Economic geology, geology of energy sources KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1612263313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=delta+7Li+of+saline+water%3B+northern+Appalachian+Basin+and+Gulf+Coast+sedimentary+basin%2C+USA&rft.au=Macpherson%2C+Gwendolyn+L%3BCapo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BPhan%2C+Thai%3BSchroder%2C+Karl%3BHammack%2C+Richard+W%3BAnonymous&rft.aulast=Macpherson&rft.aufirst=Gwendolyn&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/mac.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-16 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - alkali metals; Appalachian Basin; Appalachian Plateau; Appalachians; basins; clastic rocks; clay minerals; connate waters; Devonian; Gulf Coastal Plain; hydraulic fracturing; isotope ratios; isotopes; Li-7/Li-6; lithium; Marcellus Shale; metals; Middle Devonian; North America; Paleozoic; Pennsylvania; petroleum; pore water; reservoir rocks; salt water; sedimentary basins; sedimentary rocks; shale; sheet silicates; silicates; stable isotopes; United States ER - TY - JOUR T1 - Dynamics of Marcellus Shale environmental health and safety incident reporting in Pennsylvania AN - 1566812078; 2014-075537 AB - Recent studies of unconventional gas extraction 'incident' rates have concluded that Environmental Health and Safety (ES&H) incidents decrease over time. We have analyzed Marcellus ES&H incidents reported by Pennsylvania Department of Environmental Protection between 2008 and 2011. PA DEP incident reports were categorized from administrative to severe along a five point scale. Administrative incidents, classified as incorrect permits, improper signage, etc., were excluded from analysis. Of the 35 counties with active drilling during the study period, eight had no incidents reported, and the overall number of reported incidents decreased between 2008 and 2011. Although the overall reporting rate declined over the study period, reports of significant and serious incidents increased in 74% of counties. This increase may not necessarily reflect a growth in serious ES&H violations, because simultaneous changes in inspection and reporting practices in Pennsylvania may have changed detection efficiency. Reporting rates were examined in the context of the regulatory environment, including changes in inspection effort, inspection practices, and public awareness of Marcellus drilling activities, to assess whether the observed trends may be confounded by these processes. Benefits of understanding Marcellus ES&H incident reporting in Pennsylvania include identification of engineering and operational risks, and the promotion of public confidence in shale gas development practices. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Glosser, Deborah AU - Bain, Daniel AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - public awareness KW - shale KW - Paleozoic KW - natural gas KW - regulations KW - petroleum KW - environmental effects KW - sedimentary rocks KW - safety KW - Middle Devonian KW - Devonian KW - Marcellus Shale KW - risk assessment KW - drilling KW - Pennsylvania KW - clastic rocks KW - public health KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566812078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Dynamics+of+Marcellus+Shale+environmental+health+and+safety+incident+reporting+in+Pennsylvania&rft.au=Glosser%2C+Deborah%3BBain%2C+Daniel%3BAnonymous&rft.aulast=Glosser&rft.aufirst=Deborah&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/gl.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-02 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - clastic rocks; Devonian; drilling; environmental effects; Marcellus Shale; Middle Devonian; natural gas; Paleozoic; Pennsylvania; petroleum; public awareness; public health; regulations; risk assessment; safety; sedimentary rocks; shale; United States ER - TY - JOUR T1 - Probing the influence of reactions between fracture fluids and Marcellus Shale on the composition of major ion and trace element fluid chemistry in flowback waters AN - 1566812055; 2014-075557 AB - Increased natural gas production from shales is due to the deployment of hydraulic fracturing technologies. Current practices employ large volumes of water with chemical additives, and also result in the production of flowback waters that require treatment before reuse or disposal. An understanding of changes in fluid chemistry due to fracturing fluid-shale reactions provides direct input for reservoir design, and also may guide development of strategies for managing and disposal of solid and liquid wastes. In this study we investigated Marcellus Shale metal extractability and reactivity with fracturing fluids through bulk extractions, and fracture fluid-shale reactions in high pressure, high temperature autoclave systems. The primary goals for this study are to evaluate the role of shale-fluid reactions on controlling flowback water chemistry, and to evaluate the potential for metals to be extracted from organic-rich shales under various environmental conditions. Metal extractability studies focused on Marcellus Shale core and outcrop powders and rock chips were performed under different temperature and pressure conditions with a variety of extractants. Reactions between synthetic fracturing fluids (designed based on information from FracFocus) and Marcellus Shale core are ongoing in high pressure, high temperature autoclave systems to evaluate changes to both trace element and total dissolved solids composition of the fluid, and changes to rock morphology and mineralogy, over time. Experimental results will be used to identify the primary solid phases controlling changes to fluid chemistry. Our results to date show that, despite no statistical differences in trace metal concentrations in core and outcrop samples, extractability varies as a function of sample type and, generally, metal extractability is higher in outcrop samples. For example, in batch extractions using powdered rock samples the extractability of U by oxidation of the organic matter with H (sub 2) O (sub 2) is higher in outcrops ( approximately 10%) compared to cores ( approximately 0%) . For our rocking autoclave experiments, we anticipate that reactions between synthetic fracturing fluid and natural carbonate and clay minerals present in our samples will result in observable geochemical changes. Ongoing studies will 1) determine the rate of metal leaching and the influence of increased surface area on metal extractability, and 2) identify the primary reactions that occur between fracturing fluids and shales. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Hakala, Alexandra AU - Joseph, Craig AU - Marcon, Virginia AU - Bank, Tracy AU - Hedges, Sheila AU - Malizia, Thomas R AU - Mouser, Paula AU - Liu, Shuai AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - water KW - hydraulic fracturing KW - experimental studies KW - pressure KW - waste water KW - Paleozoic KW - natural gas KW - fluid flow KW - petroleum KW - cores KW - temperature KW - solid phase KW - laboratory studies KW - mineral composition KW - Middle Devonian KW - Devonian KW - chemical reactions KW - metals KW - Marcellus Shale KW - water treatment KW - waste disposal KW - trace elements KW - chemical composition KW - 29A:Economic geology, geology of energy sources KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566812055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Probing+the+influence+of+reactions+between+fracture+fluids+and+Marcellus+Shale+on+the+composition+of+major+ion+and+trace+element+fluid+chemistry+in+flowback+waters&rft.au=Hakala%2C+Alexandra%3BJoseph%2C+Craig%3BMarcon%2C+Virginia%3BBank%2C+Tracy%3BHedges%2C+Sheila%3BMalizia%2C+Thomas+R%3BMouser%2C+Paula%3BLiu%2C+Shuai%3BAnonymous&rft.aulast=Hakala&rft.aufirst=Alexandra&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/hak.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-02 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - chemical composition; chemical reactions; cores; Devonian; experimental studies; fluid flow; hydraulic fracturing; laboratory studies; Marcellus Shale; metals; Middle Devonian; mineral composition; natural gas; Paleozoic; petroleum; pressure; solid phase; temperature; trace elements; waste disposal; waste water; water; water treatment ER - TY - JOUR T1 - Concentration-dependent effects of CO (sub 2) on deep subsurface microbial ecology under carbon sequestration conditions AN - 1566812020; 2014-075551 AB - Geological carbon sequestration is likely to be part of a comprehensive strategy to minimize the release of greenhouse gasses into the atmosphere. Reservoir storage capacities and long-term security of geologic carbon sequestration will be dependent on the trapping mechanisms and mineral transformation in the deep subsurface. A critical need exists to understand the evolution of microbial populations that influence the biogeochemistry in these reservoirs. As the CO (sub 2) front moves through the storage aquifer, microbial communities may preside in residual brine left behind in cracks, dead flow zones, and upstream to the front; this brine will have a gradient of dissolved CO (sub 2) concentration. The evolution of microbial ecology along this CO (sub 2) concentration gradient was investigated using fluid-slurry samples obtained from a proposed carbon sequestration site. The native species of these samples were investigated with varying pCO (sub 2) from 0% to 100% under reservoir temperature and pressure for up to 56 days. Microbial growth occurred with 0% and 1% pCO (sub 2) , while microbial population decreased by four orders of magnitude with 10% and 100% pCO (sub 2) . This suggests that any biological processes that may have been involved in the security of the reservoir pre-CO (sub 2) -injection will be hindered near the CO (sub 2) plume, but may be important where CO (sub 2) is attenuated. Batch reactors with 0% pCO (sub 2) , but lowered pH had increased microbial population by one order of magnitude, suggesting that microbial shifts will occur even in highly buffered reservoirs due to exposure to CO (sub 2) . Halotolerant microorganisms Halomonas and Marinobacter were the most tolerant to the conditions that would follow CO (sub 2) injection. Findings provide insight into the populations that may survive in the deep subsurface following the supercritical fronts. These populations will eventually give rise to the community that will impact the trapping mechanisms, storage capacities, and long-term security of the CO (sub 2) deposits. Knowledge of the surviving microbial populations will enable improved models for predicting the fate of CO (sub 2) following injection and lead to better strategies for ensuring the security of CO (sub 2) in the subsurface. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Gulliver, Djuna AU - Gregory, Kelvin AU - Lowry, Gregory AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - concentration KW - communities KW - carbon sequestration KW - Archaea KW - biochemistry KW - depth KW - reservoir rocks KW - ground water KW - carbon dioxide KW - aquifers KW - populations KW - brines KW - bacteria KW - reservoir properties KW - ecology KW - geochemistry KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566812020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Concentration-dependent+effects+of+CO+%28sub+2%29+on+deep+subsurface+microbial+ecology+under+carbon+sequestration+conditions&rft.au=Gulliver%2C+Djuna%3BGregory%2C+Kelvin%3BLowry%2C+Gregory%3BAnonymous&rft.aulast=Gulliver&rft.aufirst=Djuna&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/gull.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-02 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - aquifers; Archaea; bacteria; biochemistry; brines; carbon dioxide; carbon sequestration; communities; concentration; depth; ecology; geochemistry; ground water; microorganisms; populations; reservoir properties; reservoir rocks ER - TY - JOUR T1 - Microseismic monitoring to determine fracture height growth during hydraulic fracturing at NETL's Marcellus Shale test site in Greene County, Pennsylvania AN - 1566810478; 2014-075559 AB - This study presents the results of microseismic monitoring to evaluate fracture height growth during the hydraulic fracturing of six horizontal Marcellus Shale wells at NETL's Marcellus Test Site in Greene County, Pennsylvania. The Marcellus Shale Test Site comprises eight Marcellus Shale wells (six horizontal wells and two vertical wells) at 8100-8200 ft total vertical depth. All six horizontal wells were drilled from one pad: three wells were drilled northwest and three were drilled southeast. Two existing vertical Marcellus Shale wells were optimally located to serve as microseismic monitoring wells during hydraulic fracturing; one vertical well was located amidst the three northwestern horizontal wells while the second vertical well was located amidst the three southeastern horizontal wells. During hydraulic fracturing, eight wireline geophone tools spaced 100 ft apart were deployed in the vertical Marcellus Shale well that was nearest to the horizontal wells being completed. The two lowermost geophones were located in the Hamilton Formation, above the Marcellus Shale but below the Tully Limestone; the upper six geophones were located in shale formations above the Tully Limestone. Microseismic data were acquired during the pumping of 56 stages; more than 10,000 microseismic events were located. This study's objective is to examine the upward growth of fractures during hydraulic fracturing and is primarily focused on microseismic events located above the Tully Limestone. Such events were observed during the pumping of all stages of all wells. Most events above the Tully Limestone were observed during the pumping of the northwestern wells where events were clustered along two near-vertical planes with azimuths of about 10 degrees and 50 degrees . Microseismic event clusters attained a maximum height of 1920 ft above the Marcellus Shale, which coincides with the maximum height of faults in the area as interpreted from 3-D surface seismic. For the southeastern wells, microseismic events above the Tully Limestone were infrequent and scattered; no event clusters were observed. Microseismic results indicate a maximum fracture height growth of about 1900 ft upward to a depth of about 6200 ft at this location. More than 5500 ft of strata separate the uppermost created fracture from the nearest drinking water aquifer. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Hammack, Richard W AU - Harbert, William AU - Sams, James AU - Siriwardane, Hema AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - horizontal drilling KW - geophones KW - Tully Limestone KW - Appalachians KW - petroleum KW - Appalachian Plateau KW - ground water KW - Hamilton Formation KW - fractures KW - Marcellus Shale KW - directional drilling KW - drilling KW - faults KW - hydraulic fracturing KW - North America KW - monitoring KW - three-dimensional models KW - microseismic methods KW - Paleozoic KW - aquifers KW - Middle Devonian KW - Devonian KW - Greene County Pennsylvania KW - Pennsylvania KW - instruments KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566810478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Microseismic+monitoring+to+determine+fracture+height+growth+during+hydraulic+fracturing+at+NETL%27s+Marcellus+Shale+test+site+in+Greene+County%2C+Pennsylvania&rft.au=Hammack%2C+Richard+W%3BHarbert%2C+William%3BSams%2C+James%3BSiriwardane%2C+Hema%3BAnonymous&rft.aulast=Hammack&rft.aufirst=Richard&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/hamm.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-10-02 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - Appalachian Plateau; Appalachians; aquifers; Devonian; directional drilling; drilling; faults; fractures; geophones; Greene County Pennsylvania; ground water; Hamilton Formation; horizontal drilling; hydraulic fracturing; instruments; Marcellus Shale; microseismic methods; Middle Devonian; monitoring; North America; Paleozoic; Pennsylvania; petroleum; three-dimensional models; Tully Limestone; United States ER - TY - JOUR T1 - Geochemical and physical evidence of methane hydrate in marine sediments AN - 1553086345; 2014-061730 AB - Natural gas hydrate exists in continental margin sediments, where high pressure and low temperatures allow for gas hydrate stability. In this project we are looking for artifacts of hydrate occurrence in marine sediment cores to better understand their formation, source, and distribution in sediment. Currently, no artifacts of natural gas hydrate have been identified for standard sediment cores, aside from pore water salinity measurements collected shortly after core recovery. In marine muds natural gas hydrate occur as fractures and veins which dissociate during core removal. We hypothesize that the dissociating gas hydrate may leave behind physical and chemical artifacts in sediment cores such as fractures, tunnels, carbon isotope anomalies, salinity variability in areas surrounding fractures, as well as mineralization artifacts such as pyrite and calcite precipitation resulting from the biogeochemical transformation of methane. Cores used in this project are from the Gulf of Mexico Gas Hydrate Join Industry Project Leg 1, collected in Hole KC151-2 in Keathley Canyon Block 151. We examined the interior of the core for fractures using x-ray computed tomography. In situ gas hydrate filled fractures have been observed on logging-while-drilling resistivity images in Keathley Canyon; these fractures are near vertical with apertures on the millimeter-scale. Similar near-vertical fractures have been attributed to gas hydrate rather than fractures formed during the removal process. These fractures were sampled for carbon isotope analysis using a Picarro CO (sub 2) elemental analyzer to measure delta (super 13) C of organic and total carbon present and compare these data with carbon isotope data from un-fractured core sections. Preliminary results indicate an isotopically light ratio of -21 to -31 consistent with marine alga. Other samples will be collected from the potential hydrate fractures for wet chemistry analysis to compare salinity levels of the fracture surface versus the background salinity level for Hole KC151-2. We hypothesize this will be markedly different as the dissociating hydrate will flush the fracture with fresh water. Further samples will be taken from the core surrounding the fractures and from cores that do not contain hydrate fractures to analyze the mineralization artifacts present using the scanning electron microscope. We hope to develop a set of criteria that can be used to identify former occurrence of natural gas hydrate in sediment core. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Buchwalter, Edwin R AU - Cook, Ann AU - Welch, Susan AU - Sheets, Julie AU - Rose, Kelly AU - Disenhof, Corinne AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - tomography KW - Keathley Canyon Block 151 KW - gas hydrates KW - isotopes KW - natural gas KW - aliphatic hydrocarbons KW - petroleum KW - measurement-while-drilling KW - salinity KW - stable isotopes KW - Gulf of Mexico KW - cores KW - fractures KW - marine sediments KW - carbon KW - sediments KW - Keathley Canyon KW - geochemistry KW - continental margin KW - methane KW - alkanes KW - organic compounds KW - computed tomography KW - hydrocarbons KW - wet methods KW - C-13 KW - North Atlantic KW - pore water KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553086345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Geochemical+and+physical+evidence+of+methane+hydrate+in+marine+sediments&rft.au=Buchwalter%2C+Edwin+R%3BCook%2C+Ann%3BWelch%2C+Susan%3BSheets%2C+Julie%3BRose%2C+Kelly%3BDisenhof%2C+Corinne%3BAnonymous&rft.aulast=Buchwalter&rft.aufirst=Edwin&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/buc.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2015-04-16 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Atlantic Ocean; C-13; carbon; computed tomography; continental margin; cores; fractures; gas hydrates; geochemistry; Gulf of Mexico; hydrocarbons; isotopes; Keathley Canyon; Keathley Canyon Block 151; marine sediments; measurement-while-drilling; methane; natural gas; North Atlantic; organic compounds; petroleum; pore water; salinity; sediments; stable isotopes; tomography; wet methods ER - TY - JOUR T1 - Mineralogy and geochemistry of the Arbuckle Aquifer; insights into characterization for CO (sub 2) sequestration AN - 1553086029; 2014-061683 AB - In response to increasing concerns over release of anthropogenic greenhouse gases the deep saline aquifer in south-central Kansas has been proposed as a potential site for geologic storage for CO (sub 2) . Two wells (KGS 1-32 and 1-28) have been drilled to provide data for site specific determination of the storage potential of the Arbuckle. Cores from specific depths within Arbuckle (4164'-5130') were utilized for study and flow-through experiments. Examination of formation rocks by thin section studies, SEM, XRD and CT scans were carried out to characterize the mineralogy of the cores. Dominant mineralogy throughout the formation is dolomite with sporadic large chert nodules and occasional zones of argillaceous and pyritic minerals. Silica occurs as authigenic megaquartz, radial chalcedony, microcrystalline quartz and porous silica. Carbonate-silica contacts contain extensive heterogeneity with sulfide minerals and argillaceous material in between. Extensive vugs and microfractures are common. This study focuses on three zones of interest: Mississippian pay zone (3670'-3700'), potential baffle in Arbuckle (4400'-4550') and proposed CO (sub 2) injection zone (4900'-5050'). Drill stem tests and swabbed brine samples collected from 13 depths throughout the aquifer reveal a saline brine ( approximately 50,000-190,000 TDS) dominated by Na (super +) , Ca (super 2+) and Cl (super -) . Elemental ratios of major cations with Cl (super -) demonstrate a typical saline aquifer system. Ca/Cl and Mg/Cl ratios suggest effect of dolomitization within the brines. Cl/Br ratios reveal hydrochemical separation of the upper and lower Arbuckle and delta (super 18) O and delta (super 2) H isotopes and Li/Cl ratios support the separation of upper and lower Arbuckle by a baffle zone. Swabbed waters provide Fe speciation data and reveal the importance of it in the system. Laboratory experiments carried out at 40 degrees C and 2100 psi using formation core plug and collected brine identify reaction pathways to be anticipated when supercritical CO (sub 2) is injected. Results showed varying concentrations of elements with Ca (super 2+) , Mg (super 2+) , Na (super +) and Cl (super -) increasing during the first 15 hours, while Fe, S, and SO (sub 4) (super 2-) decrease. For the next 15 hours a reverse trend of the same elements was observed. Alkalinity and pH show inverse relationship throughout the experiment. We conclude that dominant reactions will occur between brine, CO (sub 2) and dolomite, calcite, chert, pyrite and argillaceous minerals. There is no perceived threat to freshwater resources in Kansas due to CO (sub 2) injection. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Barker, Robinson L AU - Watney, Willard L AU - Rush, Jason AU - Strazisar, Brain AU - Scheffer, Aimee AU - Datta, Saugata AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - Mississippian KW - microcracks KW - cores KW - ground water KW - carbon dioxide KW - dolomite KW - laboratory studies KW - sedimentary rocks KW - chemical reactions KW - geochemistry KW - chemical ratios KW - saline composition KW - argillaceous texture KW - experimental studies KW - chemically precipitated rocks KW - carbon sequestration KW - textures KW - Paleozoic KW - carbonatization KW - Carboniferous KW - calcite KW - Arbuckle Group KW - aquifers KW - Kansas KW - cracks KW - boreholes KW - chert KW - petrography KW - reservoir properties KW - pyrite KW - greenhouse gases KW - sulfides KW - drill stem tests KW - dolomitization KW - carbonates KW - south-central Kansas KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553086029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Mineralogy+and+geochemistry+of+the+Arbuckle+Aquifer%3B+insights+into+characterization+for+CO+%28sub+2%29+sequestration&rft.au=Barker%2C+Robinson+L%3BWatney%2C+Willard+L%3BRush%2C+Jason%3BStrazisar%2C+Brain%3BScheffer%2C+Aimee%3BDatta%2C+Saugata%3BAnonymous&rft.aulast=Barker&rft.aufirst=Robinson&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/barker.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-08-14 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - aquifers; Arbuckle Group; argillaceous texture; boreholes; calcite; carbon dioxide; carbon sequestration; carbonates; carbonatization; Carboniferous; chemical ratios; chemical reactions; chemically precipitated rocks; chert; cores; cracks; dolomite; dolomitization; drill stem tests; experimental studies; geochemistry; greenhouse gases; ground water; Kansas; laboratory studies; microcracks; Mississippian; Paleozoic; petrography; pyrite; reservoir properties; saline composition; sedimentary rocks; south-central Kansas; sulfides; textures; United States ER - TY - JOUR T1 - Shallow groundwater and soil chemistry response to three years of subsurface drip irrigation using coalbed methane produced water AN - 1553085200; 2014-063766 AB - Disposal of produced waters in the Powder River Basin of Wyoming and Montana is a significant environmental issue for the development of coalbed methane (CBM). High sodium adsorption ratios (SAR) of the waters could degrade agricultural land, especially if directly applied to soil surface. One method of disposing of the produced water, while deriving beneficial use, is subsurface drip irrigation (SDI), where acidified CBM waters are applied year-round to cropland via buried tubing (0.92 m below ground surface). This research examined the impacts to soil chemistry and shallow groundwater resulting from 3 years of SDI operation at a study site in Johnson County, Wyoming. The site spreads across an alluvial terrace system where depth to groundwater is generally shallow ( approximately 3 m). Excess irrigation water led to a rising water table, and even temporarily reached the depth of drip tubing. The rise corresponded to increasing groundwater salinity in some wells. Native magnesium-, sodium- and sulfate-bearing salts in soil contributed more to increased groundwater salinity than evaporated CBM water. Native salts have a laterally heterogeneous distribution in soils but redistribution by rising groundwater generates a more homogenous environment. Solutes in soil were also redistributed vertically, resulting in greatest salt concentrations in soil between drip tubing and the water table due to restricted drainage and root water uptake. Importantly, maximum soil SAR occurred around 0.75 m depth and little increase has occurred at the soil surface, illustrating natural buffering of the system. Results from this research suggest that SDI is a viable method for beneficial use of CBM produced waters, but like all technologies, requires proper management and monitoring. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Engle, Mark AU - Bern, Carleton R AU - Boehlke, Adam AU - Geboy, Nicholas J AU - Schroder, Karl AU - Zupancic, John W AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - water quality KW - waste water KW - natural gas KW - petroleum KW - salinity KW - production KW - environmental effects KW - irrigation KW - ground water KW - shallow depth KW - chemical composition KW - Powder River basin KW - Johnson County Wyoming KW - soils KW - monitoring KW - alkali metals KW - agriculture KW - adsorption KW - sodium KW - Montana KW - Wyoming KW - water table KW - metals KW - coalbed methane KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553085200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Shallow+groundwater+and+soil+chemistry+response+to+three+years+of+subsurface+drip+irrigation+using+coalbed+methane+produced+water&rft.au=Engle%2C+Mark%3BBern%2C+Carleton+R%3BBoehlke%2C+Adam%3BGeboy%2C+Nicholas+J%3BSchroder%2C+Karl%3BZupancic%2C+John+W%3BAnonymous&rft.aulast=Engle&rft.aufirst=Mark&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/eng.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-08-14 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - adsorption; agriculture; alkali metals; chemical composition; coalbed methane; environmental effects; ground water; irrigation; Johnson County Wyoming; metals; monitoring; Montana; natural gas; petroleum; Powder River basin; production; salinity; shallow depth; sodium; soils; United States; waste water; water quality; water table; water wells; Wyoming ER - TY - JOUR T1 - The strontium isotopic and geochemical evolution of produced waters from the Marcellus Formation AN - 1553085130; 2014-063685 AB - Production of natural gas and natural gas liquids from shale formations requires hydraulic fracturing and subsequent removal of the injected water and formation waters that are co-produced with gas. The chemistry of the returning waters reflects the original composition of the injection fluid, constituents in the shale formation that were mobilized by the fluid, and the co-mingled formation waters liberated by hydraulic fracturing. Previous work (Chapman et al., 2012, Env. Sci. Technol. 46, 3545-3553) demonstrated that the Sr isotope compositions of Marcellus formation waters collected over a distance of approximately 375 km fall within a relatively small range (0.7101-0.7121), providing a unique signature for interaction of Marcellus produced water with surface and ground waters. Strontium concentrations and isotope compositions are controlled primarily by mixing with formation waters, which contain very high levels of Sr (up to 5000 ppm), but other chemical species vary depending on the content of the fracturing fluid, shale, and formation water. We will report strontium isotope and geochemical data from several horizontally drilled wells in the Marcellus Formation, with a focus on the changes in chemistry and isotope composition over time as the returned waters shift from mixed injection fluids and formation waters to predominantly formation waters. Returned waters from four wells in southwestern Pennsylvania demonstrate that the Sr isotope composition reaches a constant value within 2-10 days of water return, while the Sr concentration rises more slowly and appears to hit a steady state value within 30 days. As production continues the returned waters primarily reflect the formation water end-member, allowing better understanding of shale water chemistry and evolution. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Capo, Rosemary C AU - Stewart, Brian W AU - Rowan, Elisabeth L AU - Wall, Andrew J AU - Chapman, Elizabeth C AU - Schroder, Karl AU - Hammack, Richard W AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2013 KW - United States KW - horizontal drilling KW - isotopes KW - natural gas KW - Appalachians KW - petroleum KW - Appalachian Plateau KW - production KW - ground water KW - sedimentary rocks KW - Marcellus Shale KW - directional drilling KW - drilling KW - geochemistry KW - hydraulic fracturing KW - North America KW - alkaline earth metals KW - shale KW - Paleozoic KW - connate waters KW - fluid flow KW - Middle Devonian KW - Devonian KW - southwestern Pennsylvania KW - metals KW - Pennsylvania KW - clastic rocks KW - strontium KW - 29A:Economic geology, geology of energy sources KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553085130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=The+strontium+isotopic+and+geochemical+evolution+of+produced+waters+from+the+Marcellus+Formation&rft.au=Capo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BRowan%2C+Elisabeth+L%3BWall%2C+Andrew+J%3BChapman%2C+Elizabeth+C%3BSchroder%2C+Karl%3BHammack%2C+Richard+W%3BAnonymous&rft.aulast=Capo&rft.aufirst=Rosemary&rft.date=2013-01-01&rft.volume=2013&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2013/90163ace/abstracts/cap.htm LA - English DB - GeoRef N1 - Conference title - AAPG 2013 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 1 N1 - PubXState - OK N1 - Last updated - 2014-08-14 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Appalachian Plateau; Appalachians; clastic rocks; connate waters; Devonian; directional drilling; drilling; fluid flow; geochemistry; ground water; horizontal drilling; hydraulic fracturing; isotopes; Marcellus Shale; metals; Middle Devonian; natural gas; North America; Paleozoic; Pennsylvania; petroleum; production; sedimentary rocks; shale; southwestern Pennsylvania; strontium; United States ER - TY - JOUR T1 - Using Sr isotopes to track the dissolution of Marcellus Shale by hydraulic fracturing fluids AN - 1549617485; 2014-059853 AB - Hydraulic fracturing (HF) has allowed for the production of formerly inaccessible shale gas resources. However, fluid/rock reactions during HF may lead to changes in produced water chemistry such as an increase in total dissolved solids (TDS). Sr isotopes are an effective tool for differentiating Marcellus Shale derived-fluids from other high TDS sources (Chapman et al. 2012, doi: 10.1021/es204005g), but questions remain as to what controls Sr concentrations and isotopic values in Marcellus Shale fluids. Here, we present Sr isotopic data from Marcellus Shale dissolution experiments using synthetic brines and HF fluids. A core sample of Marcellus Shale from Greene County, PA was crushed and placed into a high P and T reaction vessel. Solutions were added in two different experiments: one with synthetic brine, and another using brine+HF fluid. The HF fluid was made up of components listed on fracfocus.org. Experiments were run for approximately 16 days at 27.5 MPa and 130 degrees C. Aqueous samples were periodically removed for analysis and Sr isotope ratios were measured by MC-ICP-MS. Using just brine, the pH decreased from 7.6 to 5.3 after 24 hrs, but then became steady at approximately 6.1. Sr (aq) concentrations started at 2.5 mmol/L after 24 hrs and then rose to approximately 3 mmol/L over approximately 380 hours. During this time only 6% of the total inorganic carbon (TIC) dissolved from the shale. The epsilon Sr values (deviation of the (super 87) Sr/ (super 86) Sr ratio from that of seawater in parts per ten thousand) started at +43.2 and decreased to +42.4. In the experiment using brine+HF fluid, the pH rose from 1.8 to 5.6 by day six. Sr concentrations were higher after approximately 24 hours (3.9 mmol/L) and increased to 4.5 mmol/L by the end on day 16. Over 60% of the TIC dissolved from the shale during the reaction. The epsilon Sr started at +36.5 at 24 hours and decreased to +35.5 by the end. Differences in the Sr isotopic results between the experiments, in combination with the TIC data, suggest the presence of at least two distinct Sr reservoirs in the sample: 1) water-soluble or exchangeable Sr, and 2) Sr incorporated into carbonate minerals. The lower epsilon Sr values using brine+HF fluid may be explained by the increased dissolution of carbonates. These results suggest that carbonate minerals within the Marcellus Shale may help control Sr isotopic composition of produced waters from these formations. JF - Abstracts with Programs - Geological Society of America AU - Wall, Andrew J AU - Hakala, J Alexandra AU - Marcon, Virginia AU - Joseph, Craig AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 758 PB - Geological Society of America (GSA), Boulder, CO VL - 45 IS - 7 SN - 0016-7592, 0016-7592 KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549617485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+Sr+isotopes+to+track+the+dissolution+of+Marcellus+Shale+by+hydraulic+fracturing+fluids&rft.au=Wall%2C+Andrew+J%3BHakala%2C+J+Alexandra%3BMarcon%2C+Virginia%3BJoseph%2C+Craig%3BAnonymous&rft.aulast=Wall&rft.aufirst=Andrew&rft.date=2013-01-01&rft.volume=45&rft.issue=7&rft.spage=758&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2013AM/webprogram/Paper231504.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2013 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-07-31 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Geochemical behavior of Marcellus Shale drill cuttings with different types of drilling fluids AN - 1542643412; 2014-046260 AB - The Marcellus shale, like many types of black shale, has been shown to be organic, pyritic and clay-rich by the nature of its depositional environment. Previous studies have identified that trace metals are present in the Marcellus shale in core and outcrop materials. Little work has been done evaluating fine-grained drill cuttings from the Marcellus, and the geochemical signals that might result under environmental conditions at the earth's surface and under landfill conditions. Leaching studies were performed along with characterization of the solids to help identify potential trace metal point-sources. Samples of drill cuttings from two different locales in Pennsylvania (Southwestern PA and North Central PA) were evaluated. Drill cuttings represent the fine grained rock pieces that are broken away from the formation by the action of the drill bit and often include remnants of various types of drilling fluids (e.g. water-based, and nonwater based) and additives despite rinsing in the field. The additives may vary greatly between sites. The drill cutting solids were analyzed via X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The SW PA site utilized nonwater based drill cuttings and analysis of the solids show an abundance of barite in addition to the typical shale mineralogy of quartz, clay, calcite and pyrite. The NC PA samples did not contain barite, but contained added salts. The dried drill cuttings were leached with DI water in different L:S ratios, and under various pH conditions. In addition, the drill cuttings were exposed to both synthetic rain water and natural rain water collected in the Pittsburgh area. TCLP and sequential extractions are underway. The natural pH of the solids from both locales were alkaline ( approximately 9.0-9.4), and both samples show a high buffering capacity. There was a marked color difference between leachates from the nonwater based drill cuttings versus the water based drill cuttings. The potential influence of organic compounds and overall geochemical trends at different pH are being evaluated for both non-water based and water-based drill cuttings. JF - Abstracts with Programs - Geological Society of America AU - Lopano, Christina L AU - Palmer, David E AU - Thomas, Christine L AU - Schroeder, Karl T AU - Hakala, J Alexandra AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 384 PB - Geological Society of America (GSA), Boulder, CO VL - 45 IS - 7 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542643412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geochemical+behavior+of+Marcellus+Shale+drill+cuttings+with+different+types+of+drilling+fluids&rft.au=Lopano%2C+Christina+L%3BPalmer%2C+David+E%3BThomas%2C+Christine+L%3BSchroeder%2C+Karl+T%3BHakala%2C+J+Alexandra%3BAnonymous&rft.aulast=Lopano&rft.aufirst=Christina&rft.date=2013-01-01&rft.volume=45&rft.issue=7&rft.spage=384&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2013AM/webprogram/Paper232340.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2013 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-07-04 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - U.S. DOE's R&D program to develop infrastructure for carbon storage; results of field testing in different geologic environments AN - 1535201971; 2014-041829 AB - The Carbon Storage Program being implemented by the U.S. Department of Energy's (DOE) Office of Fossil Energy and managed by the National Energy Technology Laboratory (NETL) is focused on developing technologies to store CO (sub 2) in order to reduce greenhouse gas emissions without adversely affecting energy use or hindering economic growth. A key element of the program, which is important in advancing geologic carbon storage technology towards commercialization, involves small and large scale field tests being carried out through the Regional Carbon Sequestration Partnerships (RCSPs) initiative. These tests highlight DOE's awareness of the importance of addressing CO (sub 2) mitigation on a regional level to most effectively manage differences in geology, climate, population density, infrastructure, and socioeconomic development. Regarding differences in geology, the depositional environment has a major influence on the properties and architecture of reservoirs, affecting how CO (sub 2) is trapped, and how it moves and interacts with other formation fluids and solids. The effectiveness of CO (sub 2) injection and storage and the ability of technologies to monitor and simulate storage will differ among depositional environments. This paper summarizes lessons learned to date from DOE's field testing in a variety of depositional environments. The Storage Program is considering 11 different classes of geologic formations, based on depositional environment, as having potential for storage. The RCSPs have completed 18 small scale field projects involving CO (sub 2) injection into eight of the 11 classes; one small scale test in basalt is on-going. Eight projects were in oil and gas fields; five in saline formations; and five in unmineable coal seams. Currently, under the RCSP initiative, a number of large-scale (1 million metric tons CO (sub 2) injected) field projects are underway in regionally significant geologic formations representing six different depositional environments, focusing on saline formations and oil fields. JF - Abstracts with Programs - Geological Society of America AU - Rodosta, Traci AU - Brown, Bruce AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 652 PB - Geological Society of America (GSA), Boulder, CO VL - 45 IS - 7 SN - 0016-7592, 0016-7592 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=U.S.+DOE%27s+R%26amp%3BD+program+to+develop+infrastructure+for+carbon+storage%3B+results+of+field+testing+in+different+geologic+environments&rft.au=Rodosta%2C+Traci%3BBrown%2C+Bruce%3BAnonymous&rft.aulast=Rodosta&rft.aufirst=Traci&rft.date=2013-01-01&rft.volume=45&rft.issue=7&rft.spage=652&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2013AM/webprogram/Paper232392.html LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2013 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-06-13 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Uranium partitioning and isotope composition in shales of the Middle Devonian Marcellus Formation AN - 1529797465; 2014-034262 AB - Natural gas extraction from the Middle Devonian Marcellus Shale has raised interest in investigating the distribution and behaviour of NORM (naturally occurring radioactive material) associated with both produced water and drill cuttings from this unit. The Marcellus is a variably calcareous shale with intercalated limestone. Based on core extracted in Greene County, southwestern Pennsylvania, uranium (U) concentrations in Marcellus Formation samples range from 3 to 47 ppm. Sequential extraction experiments indicate that 30 to 95% of the U is held in the silicate fraction. Although there is a positive correlation of whole rock U concentration with TOC as observed by others, U associated with the oxidizable (organic) fraction contributes less than 25% (and usually <10%) of the total. Up to 64% of the U was found in the 1.0 N acetic acid leachate, which has implications for uranium release into the environment from relatively soluble carbonate minerals in drilling waste. The source of NORM in Marcellus produced water is primarily radium [1], the daughter product of U and Th. The low U concentrations measured in produced water samples from three Marcellus Shale gas wells (0.1 to 0.5 mu g/L) may result from U reduction and precipitation as UO (sub 2) or U (sub 3) O (sub 8) , consistent with relatively high Mn (super 2+) (1-8 g/L) and Fe (super 2+) (20-120 g/L) concentrations. (super 238) U/ (super 235) U ratios of Marcellus shale obtained by MC-ICPMS using the double spike method fell in a narrow range of 137.80 to 137.85, similar to other black shales. (super 238) U/ (super 235) U ratios in the carbonate fraction of calcareous shale units were in the range of marine carbonate; however carbonate cements extracted from black shale units were isotopically heavier by an average of 0.7 ppm. (super 238) U/ (super 235) U ratios in the organic matter and silicate fractions generally overlap and are lower than coexisting carbonate cement by about 0.3 ppm. JF - Mineralogical Magazine AU - Phan, Thai T AU - Capo, Rosemary C AU - Stewart, Brian W AU - Sharma, Shikha AU - Toro, Jaime AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 1965 PB - Mineralogical Society, London VL - 77 IS - 5 SN - 0026-461X, 0026-461X KW - United States KW - isotopes KW - natural gas KW - mass spectra KW - petroleum KW - cuttings KW - partitioning KW - black shale KW - sedimentary rocks KW - radioactive isotopes KW - Marcellus Shale KW - sequential extraction KW - spectra KW - cement KW - water KW - shale KW - Paleozoic KW - isotope ratios KW - ICP mass spectra KW - organic compounds KW - Middle Devonian KW - Devonian KW - southwestern Pennsylvania KW - metals KW - Greene County Pennsylvania KW - uranium KW - U-238/U-235 KW - Pennsylvania KW - clastic rocks KW - actinides KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529797465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Uranium+partitioning+and+isotope+composition+in+shales+of+the+Middle+Devonian+Marcellus+Formation&rft.au=Phan%2C+Thai+T%3BCapo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BSharma%2C+Shikha%3BToro%2C+Jaime%3BAnonymous&rft.aulast=Phan&rft.aufirst=Thai&rft.date=2013-01-01&rft.volume=77&rft.issue=5&rft.spage=1965&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/10.1180%2Fminmag.2013.077.5.16 L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2013 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Number of references - 1 N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - actinides; black shale; cement; clastic rocks; cuttings; Devonian; Greene County Pennsylvania; ICP mass spectra; isotope ratios; isotopes; Marcellus Shale; mass spectra; metals; Middle Devonian; natural gas; organic compounds; Paleozoic; partitioning; Pennsylvania; petroleum; radioactive isotopes; sedimentary rocks; sequential extraction; shale; southwestern Pennsylvania; spectra; U-238/U-235; United States; uranium; water DO - http://dx.doi.org/10.1180/minmag.2013.077.5.16 ER - TY - JOUR T1 - Dissolution of arsenopyrite under geologic carbon storage conditions AN - 1529792104; 2014-034189 AB - Geologic carbon storage (GCS) in saline formations may induce increased dissolution of many metals including arsenic from reservoir rock minerals and from caprock and overlying rock minerals, in case of leakage of CO (sub 2) or CO (sub 2) -saturated brine. Preliminary experiments on metal mobilization on carbonate rocks upon contact with CO (sub 2) -saturated brine have indicated arsenic release in excess of the U.S. EPA standards for drinking water. The most common sources of arsenic in sedimentary geologic formations are arsenopyrite (FeAsS) and arsenian pyrite. This study aims to determine the maximum long-term dissolution rates of arsenopyrite under a range of conditions representative of deep and shallow geologic formations. For this purpose, a small-scale flow-through system was developed and used to simulate the dissolution of arsenopyrite under a wide range of temperature, pressure and solution chemistry conditions. The effects of flow rate, pressure and different oxidants on arsenopyrite were separately tested. The dissolution studies focused on determining the mineral dissolution rate based on total As release with the system at steady state operation. However, measurements of Fe and S were also collected for comparison with previous studies. The dissolution rate computed from steady state As concentrations resulting from reaction of the mineral with 10 (super -4) M Fe (super 3+) as oxidizing agent at ambient conditions was 10 (super -8.3) mol/m (super 2) s, which is comparable to reported rates of arsenopyrite dissolution rates under similar conditions. Ongoing dissolution experiments with CO (sub 2) -saturated NaCl solution at high pressure and temperature show the effect of CO (sub 2) and brine on the release of As. JF - Mineralogical Magazine AU - Parthasarathy, H AU - Dzombak, D AU - Karamalidis, A AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 1928 PB - Mineralogical Society, London VL - 77 IS - 5 SN - 0026-461X, 0026-461X KW - experimental studies KW - carbon sequestration KW - oxidation KW - arsenic KW - pollution KW - rates KW - solution KW - iron KW - carbon dioxide KW - ferric iron KW - arsenides KW - metals KW - brines KW - steady-state processes KW - arsenopyrite KW - water pollution KW - sulfides KW - P-T conditions KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529792104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Dissolution+of+arsenopyrite+under+geologic+carbon+storage+conditions&rft.au=Parthasarathy%2C+H%3BDzombak%2C+D%3BKaramalidis%2C+A%3BAnonymous&rft.aulast=Parthasarathy&rft.aufirst=H&rft.date=2013-01-01&rft.volume=77&rft.issue=5&rft.spage=1928&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/10.1180%2Fminmag.2013.077.5.16 L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2013 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - arsenic; arsenides; arsenopyrite; brines; carbon dioxide; carbon sequestration; experimental studies; ferric iron; iron; metals; oxidation; P-T conditions; pollution; rates; solution; steady-state processes; sulfides; water pollution DO - http://dx.doi.org/10.1180/minmag.2013.077.5.16 ER - TY - JOUR T1 - Dissolution of arsenic and iron from reservoir and cap-rocks of geologic carbon dioxide storage sites AN - 1529791970; 2014-034190 AB - Dissolution of geologically stored CO (sub 2) in brines of saline geologic formations may lead to a change in pH and brine composition which may subsequently increase the dissolution rates of reservoir and cap rocks. Dissolution of minerals induces the release of various metals that may participate in subsequent dissolution and precipitation reactions, and that may be of concern if reacted formation fluids migrate out of the target storage zone. The objective of this study is to study the release of As and Fe, present in the reservoir and cap rocks of the Lower Tuscaloosa reservoir. XANES analysis of the samples indicated a relationship between As and Fe in these samples. To assess the potential release of As and Fe, and to measure the effect of CO (sub 2) on their release rates, dissolution experiments were conducted with caprock and reservoir rock samples obtained at different depths. The dissolution was studied at representative conditions of the reservoir (i.e. 60 degrees C, 100 bars, synthetic brine of 1.4M NaCl) utilizing a small-scale flow-through system. The dissolution was conducted with deoxygenated 1.4M NaCl solution for 10 hours prior to CO (sub 2) injection into the NaCl solution. The solution chemistry was defined pre- and post-CO (sub 2) injection by ICP-MS analysis. Accordingly, rock samples were analyzed pre- and post-CO (sub 2) injection by XRD and SEM. Preliminary dissolution experiments showed that upon CO (sub 2) injection, rates of metal release increased significantly before reaching a new equilibrium (Figure 1). Figure 1. Effluent Fe concentration (M) with time at T=60 degrees C, P= 100 bar with 1.4 M NaCl. CO (sub 2) injection after 10 hours. JF - Mineralogical Magazine AU - Parthasarathy, H AU - Lopano, C AU - Hakala, A AU - Dzombak, D AU - Karamalidis, A AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 1929 PB - Mineralogical Society, London VL - 77 IS - 5 SN - 0026-461X, 0026-461X KW - United States KW - X-ray diffraction data KW - solutions KW - Cretaceous KW - solution KW - Upper Cretaceous KW - iron KW - reservoir rocks KW - carbon dioxide KW - XANES spectra KW - chemical reactions KW - spectra KW - Tuscaloosa Formation KW - pH KW - experimental studies KW - carbon sequestration KW - arsenic KW - rates KW - X-ray spectra KW - Mesozoic KW - precipitation KW - metals KW - brines KW - cap rocks KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529791970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Dissolution+of+arsenic+and+iron+from+reservoir+and+cap-rocks+of+geologic+carbon+dioxide+storage+sites&rft.au=Parthasarathy%2C+H%3BLopano%2C+C%3BHakala%2C+A%3BDzombak%2C+D%3BKaramalidis%2C+A%3BAnonymous&rft.aulast=Parthasarathy&rft.aufirst=H&rft.date=2013-01-01&rft.volume=77&rft.issue=5&rft.spage=1929&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/10.1180%2Fminmag.2013.077.5.16 L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2013 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Document feature - illus. N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - arsenic; brines; cap rocks; carbon dioxide; carbon sequestration; chemical reactions; Cretaceous; experimental studies; iron; Mesozoic; metals; pH; precipitation; rates; reservoir rocks; SEM data; solution; solutions; spectra; Tuscaloosa Formation; United States; Upper Cretaceous; X-ray diffraction data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1180/minmag.2013.077.5.16 ER - TY - JOUR T1 - Setschenow constants for prediction of salting-out of petroleum hydrocarbons in brines AN - 1492586220; 2014-005576 AB - Large scale implementation of carbon capture, utilization, and storage (CCUS), as well as the management of produced water associated with energy production activities (including extraction of natural gas from shale plays) requires a better understanding of the interaction of petroleum hydrocarbons with highly concentrated brines. It is not well known how very high levels of electrolytes influence the solubility of hydrocarbons. The objective of this study is to determine if existing salting-out parameters, called Setschenow constants, are applicable to predict the decrease in aqueous solubility of petroleum hydrocarbons, including polycyclic aromatics hydrocarbons (PAHs), phenols, and thiophenes, due to high levels of electrolytes in concentrated oilfield brines. We measured the solubility of important organic compounds found in oilfield brines, such as naphthalene. Electrolytes studied include NaCl and CaCl (sub 2) , which are the most common salts found in oilfield brines (1). The organic compounds in the brines were extracted with a 100 mu m polydimethylsiloxane (PDMS) fiber using solid phase microextraction (SPME) and analyzed by an Agilent 6890 gas chromatograph coupled with a flame ionization detector (GC-FID). We hypothesize that existing Setschenow constants measured at lower ionic strengths (e.g. up to seawater) will also predict the salting-out effect at very high ionic strengths expected in brines (5M) for a range of compound classes of interest. These results are expected to have implications for enhanced oil recovery, CCUS, and any other industry that deals with produced waters. If valid, the solubility of these compounds can be readily modeled using existing Setchenow constants determined at lower ionic strengths. JF - Mineralogical Magazine AU - Burant, A S AU - Lowry, G V AU - Karamalidis, A K AU - Anonymous Y1 - 2013 PY - 2013 DA - 2013 SP - 792 PB - Mineralogical Society, London VL - 77 IS - 5 SN - 0026-461X, 0026-461X KW - organic compounds KW - brines KW - hydrocarbons KW - petroleum KW - solubility KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492586220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Setschenow+constants+for+prediction+of+salting-out+of+petroleum+hydrocarbons+in+brines&rft.au=Burant%2C+A+S%3BLowry%2C+G+V%3BKaramalidis%2C+A+K%3BAnonymous&rft.aulast=Burant&rft.aufirst=A&rft.date=2013-01-01&rft.volume=77&rft.issue=5&rft.spage=792&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/10.1180%2Fminmag.2013.077.5.2 L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2013 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Number of references - 1 N1 - Last updated - 2014-01-30 N1 - SubjectsTermNotLitGenreText - brines; geochemistry; hydrocarbons; organic compounds; petroleum; solubility DO - http://dx.doi.org/10.1180/minmag.2013.077.5.2 ER - TY - JOUR T1 - Impact of geological complexity of the Fruitland Formation on combined CO (sub 2) enhanced recovery/sequestration at San Juan Basin pilot site AN - 1270037128; 2013-010670 AB - In this study we present well log and 3D seismic interpretations of a coalbed methane reservoir in the Late Cretaceous Fruitland Formation in the area surrounding the Southwest Regional Partnership on carbon sequestration's San Juan Basin carbon sequestration pilot site in New Mexico, USA. The interpretation incorporated geophysical logs from 38 wells located in a 23km (super 2) area surrounding the pilot site, which lies near the southern edge of the high rate Fruitland coal production fairway located along the axis of the San Juan Basin. Log interpretations revealed three coal-bearing zones (upper, middle and lower) within the Fruitland Formation that are approximately 7, 4.7 and 8.5m (23, 15.5 and 28ft) thick, respectively. The interpretations indicate that each of these coal zones is split by a parting into upper and lower beds making a total of six mappable coal beds in the area surrounding the CO (sub 2) injection well. The combined thickness of the upper two coal beds in the upper coal zone varies between 3.5 and 4.8m (11.5 to 15.7ft); and that of the middle beds, from 2 to 4.3m (6.6 to 14.1ft) thick. The thickness of the individual coal beds in the lower coal zone varies from about 2.7 to 4.25m (9 to 14ft) for the upper bed and from about 3 to 5.5m (10 to 18ft) for the basal coal bed. Partings separating the upper and lower coal beds in each zone are on average about 2m (7ft) in the upper and middle zones; and about 1m (3.5ft) in the lower zone. Seismic response of the upper, middle and lower coal zones was interpreted and correlated through the 23km (super 2) area. The stratigraphic complexity of this coalbed methane reservoir is also accompanied by considerable structural disharmony between the three coal zones. The reservoir complexity revealed in this study may account for lower than expected CO (sub 2) injectivity and preferential injection into the lower coal zone during the pilot test. Abstract Copyright (2012) Elsevier, B.V. JF - International Journal of Coal Geology AU - Weber, Matthew AU - Wilson, Thomas H AU - Akwari, Bill AU - Wells, Arthur W AU - Koperna, George Y1 - 2012/12/30/ PY - 2012 DA - 2012 Dec 30 SP - 46 EP - 58 PB - Elsevier, Amsterdam VL - 104 SN - 0166-5162, 0166-5162 KW - United States KW - carbon sequestration KW - three-dimensional models KW - Cretaceous KW - natural gas KW - San Juan County New Mexico KW - geophysical methods KW - petroleum KW - New Mexico KW - Upper Cretaceous KW - Mesozoic KW - feasibility studies KW - seismic methods KW - reservoir rocks KW - Fruitland Formation KW - gas injection KW - sedimentary rocks KW - coal KW - coalbed methane KW - San Juan Basin KW - interpretation KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270037128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Coal+Geology&rft.atitle=Impact+of+geological+complexity+of+the+Fruitland+Formation+on+combined+CO+%28sub+2%29+enhanced+recovery%2Fsequestration+at+San+Juan+Basin+pilot+site&rft.au=Weber%2C+Matthew%3BWilson%2C+Thomas+H%3BAkwari%2C+Bill%3BWells%2C+Arthur+W%3BKoperna%2C+George&rft.aulast=Weber&rft.aufirst=Matthew&rft.date=2012-12-30&rft.volume=104&rft.issue=&rft.spage=46&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2012.09.011 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Conference title - 28th international Pittsburgh coal conference N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2013-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-01-17 N1 - SubjectsTermNotLitGenreText - carbon sequestration; coal; coalbed methane; Cretaceous; feasibility studies; Fruitland Formation; gas injection; geophysical methods; interpretation; Mesozoic; natural gas; New Mexico; petroleum; reservoir rocks; San Juan Basin; San Juan County New Mexico; sedimentary rocks; seismic methods; three-dimensional models; United States; Upper Cretaceous DO - http://dx.doi.org/10.1016/j.coal.2012.09.011 ER - TY - JOUR T1 - Using the (super 87) Sr/ (super 86) Sr of modern and paleoseep carbonates from northern Cascadia to link modern fluid flow to the past AN - 1287376381; 2013-018071 AB - Most authigenic carbonates previously recovered from the Cascadia slope have (super 87) Sr/ (super 86) Sr signatures that reflect shallow precipitation in equilibrium with coeval seawater. There is also evidence for carbonate formation supported by fluids that have been modified by reactions with the incoming Juan de Fuca Plate ( (super 87) Sr/ (super 86) Sr=0.7071; Teichert et al., 2005) or with terrigenous turbidites ( (super 87) Sr/ (super 86) Sr=0.70975 to 0.71279; Sample et al., 1993). We report on the strontium isotopic composition of carbonates and fluids from IODP Site U1329 and nearby Barkley Canyon (offshore Vancouver Island), which have strontium isotope ratios as low as 0.70539. Whereas the strontium and oxygen isotopic compositions of carbonates from paleoseeps in the uplifted Coast Range forearc indicate formation in ambient bottom seawater, several samples from the Pysht/Sooke Fm. show a (super 87) Sr-depleted signal ( (super 87) Sr/ (super 86) Sr=0.70494 and 0.70511) similar to that of the anomalous Site U1329 and Barkley Canyon carbonates. Our data, when analyzed in the context of published elemental and isotopic composition of these carbonates (Joseph et al., 2012), point to two formation mechanisms: 1) shallow precipitation driven by the anaerobic oxidation of methane (AOM) with delta (super 13) C values as low as -50 ppm and contemporaneous (super 87) Sr/ (super 86) Sr seawater ratios, and 2) carbonate precipitation driven by fluids that have circulated through the oceanic crust, which are depleted in (super 87) Sr. Carbonates formed from the second mechanism precipitate both at depth and at sites of deep-sourced fluid seepage on the seafloor. The (super 87) Sr-depleted carbonates and pore fluids found at Barkley Canyon represent migration of a deep, exotic fluid similar to that found in high permeability conglomerate layers at 188mbsf of Site U1329, and which may have fed paleoseeps in the Pysht/Sooke Fm. These exotic fluids likely reflect interaction with the 52-57Ma igneous Crescent Terrane, which supplies fluids with high calcium, manganese and strontium enriched in the non-radiogenic nucleide. Tectonic compression and dehydration reactions then force these fluids updip, where they pick up the thermogenic hydrocarbons and (super 13) C-enriched dissolved inorganic carbon that are manifested in fluids and carbonates sampled at Barkley Canyon and at Site U1329. The Crescent Terrane may have sourced cold seeps in this margin since at least the late Oligocene. Abstract Copyright (2012) Elsevier, B.V. JF - Chemical Geology AU - Joseph, C AU - Torres, M E AU - Martin, R A AU - Haley, B A AU - Pohlman, J W AU - Riedel, M AU - Rose, K Y1 - 2012/12/12/ PY - 2012 DA - 2012 Dec 12 SP - 122 EP - 130 PB - Elsevier, Amsterdam VL - 334 SN - 0009-2541, 0009-2541 KW - sea water KW - Northeast Pacific KW - Juan de Fuca Plate KW - isotopes KW - aliphatic hydrocarbons KW - Pysth Formation KW - mass spectra KW - authigenic minerals KW - IODP Site U1329 KW - stable isotopes KW - seepage KW - Crescent Terrane KW - Cenozoic KW - marine sediments KW - water-rock interaction KW - carbon KW - sediments KW - spectra KW - chemical composition KW - Expedition 311 KW - East Pacific KW - alkaline earth metals KW - methane KW - isotope ratios KW - C-13/C-12 KW - Integrated Ocean Drilling Program KW - Paleogene KW - alkanes KW - ICP mass spectra KW - Sr-87/Sr-86 KW - Tertiary KW - organic compounds KW - North Pacific KW - metals KW - Barkley Canyon KW - Pacific Ocean KW - Sooke Formation KW - hydrocarbons KW - crystal chemistry KW - Cascadia subduction zone KW - carbonates KW - strontium KW - Oligocene KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287376381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Using+the+%28super+87%29+Sr%2F+%28super+86%29+Sr+of+modern+and+paleoseep+carbonates+from+northern+Cascadia+to+link+modern+fluid+flow+to+the+past&rft.au=Joseph%2C+C%3BTorres%2C+M+E%3BMartin%2C+R+A%3BHaley%2C+B+A%3BPohlman%2C+J+W%3BRiedel%2C+M%3BRose%2C+K&rft.aulast=Joseph&rft.aufirst=C&rft.date=2012-12-12&rft.volume=334&rft.issue=&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2012.10.020 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2013-01-01 N1 - Number of references - 57 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2013-02-14 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkaline earth metals; alkanes; authigenic minerals; Barkley Canyon; C-13/C-12; carbon; carbonates; Cascadia subduction zone; Cenozoic; chemical composition; Crescent Terrane; crystal chemistry; East Pacific; Expedition 311; hydrocarbons; ICP mass spectra; Integrated Ocean Drilling Program; IODP Site U1329; isotope ratios; isotopes; Juan de Fuca Plate; marine sediments; mass spectra; metals; methane; North Pacific; Northeast Pacific; Oligocene; organic compounds; Pacific Ocean; Paleogene; Pysth Formation; sea water; sediments; seepage; Sooke Formation; spectra; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; water-rock interaction DO - http://dx.doi.org/10.1016/j.chemgeo.2012.10.020 ER - TY - CPAPER T1 - A baseline geochemical and Sr isotope assessment of surface waters in the Allegheny River watershed, Pennsylvania, USA T2 - 2012 American Geophysical Union Fall Meeting (AGU 2012) AN - 1313120802; 6194983 JF - 2012 American Geophysical Union Fall Meeting (AGU 2012) AU - Wall, Andrew AU - Capo, Rosemary AU - Stewart, Brian AU - Lavin, Sarah AU - Hakala, Alexandra AU - Schroeder, Karl AU - Casson, Leonard AU - Monnell, Jason AU - States, Stanley Y1 - 2012/12/03/ PY - 2012 DA - 2012 Dec 03 KW - USA, Pennsylvania KW - USA, New York, Allegheny R. KW - Geochemistry KW - Isotopes KW - Surface water KW - Watersheds KW - Rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313120802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+American+Geophysical+Union+Fall+Meeting+%28AGU+2012%29&rft.atitle=A+baseline+geochemical+and+Sr+isotope+assessment+of+surface+waters+in+the+Allegheny+River+watershed%2C+Pennsylvania%2C+USA&rft.au=Wall%2C+Andrew%3BCapo%2C+Rosemary%3BStewart%2C+Brian%3BLavin%2C+Sarah%3BHakala%2C+Alexandra%3BSchroeder%2C+Karl%3BCasson%2C+Leonard%3BMonnell%2C+Jason%3BStates%2C+Stanley&rft.aulast=Wall&rft.aufirst=Andrew&rft.date=2012-12-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+American+Geophysical+Union+Fall+Meeting+%28AGU+2012%29&rft.issn=&rft_id=info:doi/ L2 - http://fallmeeting.agu.org/2012/scientific-program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Comparison of Publically Available Methodologies for Development of Geologic Storage Estimates for Carbon Dioxide in Saline Formations T2 - 2012 American Geophysical Union Fall Meeting (AGU 2012) AN - 1313099084; 6194058 JF - 2012 American Geophysical Union Fall Meeting (AGU 2012) AU - Goodman, Angela AU - Strazisar, Brian AU - Guthrie, George AU - Bromhal, Grant Y1 - 2012/12/03/ PY - 2012 DA - 2012 Dec 03 KW - Storage KW - Geology KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313099084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Maternal+and+Child+Health+Journal&rft.atitle=The+relationship+between+race%2C+inflammation+and+psychosocial+factors+among+pregnant+women&rft.au=Catov%2C+Janet+M.%3BFlint%2C+Melanie%3BLee%2C+MinJae%3BRoberts%2C+James+M.%3BAbatemarco%2C+Diane+J.&rft.aulast=Catov&rft.aufirst=Janet&rft.date=2015-02-01&rft.volume=19&rft.issue=2&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Maternal+and+Child+Health+Journal&rft.issn=10927875&rft_id=info:doi/10.1007%2Fs10995-014-1522-z L2 - http://fallmeeting.agu.org/2012/scientific-program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Microbial Diversity in the Columbia River Basalt Group and the Context for Life in Subsurface Basalts T2 - 2012 American Geophysical Union Fall Meeting (AGU 2012) AN - 1313062161; 6181288 JF - 2012 American Geophysical Union Fall Meeting (AGU 2012) AU - Lavalleur, Heather AU - Smith, Amy AU - Fisk, Martin AU - Colwell, Frederick Y1 - 2012/12/03/ PY - 2012 DA - 2012 Dec 03 KW - USA, Columbia R. KW - Basalts KW - Species diversity KW - Rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313062161?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+American+Geophysical+Union+Fall+Meeting+%28AGU+2012%29&rft.atitle=Microbial+Diversity+in+the+Columbia+River+Basalt+Group+and+the+Context+for+Life+in+Subsurface+Basalts&rft.au=Lavalleur%2C+Heather%3BSmith%2C+Amy%3BFisk%2C+Martin%3BColwell%2C+Frederick&rft.aulast=Lavalleur&rft.aufirst=Heather&rft.date=2012-12-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+American+Geophysical+Union+Fall+Meeting+%28AGU+2012%29&rft.issn=&rft_id=info:doi/ L2 - http://fallmeeting.agu.org/2012/scientific-program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - A baseline geochemical and Sr isotope assessment of surface waters in the Allegheny River watershed, Pennsylvania, USA AN - 1637527667; 2014-101082 AB - The Allegheny River Basin encompasses approximately 30,000 km (super 2) and is the major source of drinking water for the city of Pittsburgh and surrounding municipalities. However, numerous inputs to the watershed, including legacy and ongoing coal, oil and gas production, as well as rural and industrial sources present challenges to the accurate identification of contaminant sources and the assessment of their impact on water quality. We have initiated a strontium (Sr) isotopic and geochemical study of the Allegheny River watershed in western Pennsylvania. Sr isotopes are a sensitive tracer that can distinguish between contaminant sources such as Marcellus derived produced waters, abandoned coal mine drainage (AMD), fluids from conventional Upper Devonian gas reservoirs, and fly ash impoundments. Preliminary results from analyses of stream water collected from approximately 45 sites along the length of the Allegheny River and seven of its tributaries show that Sr varies across the watershed with lower concentrations (mean [Sr] = 82 ppb) in the upper reaches and tributaries, and increasing concentrations downstream, reaching approximately 200 ppb near Pittsburgh, where the Allegheny River enters the Ohio River. Anomalous Sr concentrations are observed in two creeks in the eastern portion of the watershed, where Sr concentrations reach as high as 2.5 ppm and 1.3 ppm respectively. Preliminary Sr isotope data indicate that most of the Allegheny River and its tributaries cluster around a narrow range of (super 87) Sr/ (super 86) Sr values, from 0.7125 to 0.7130 (epsilon (super Sr) (sub sw) = +47.3 to +53.8, where epsilon (super Sr) (sub sw) is the deviation of the (super 87) Sr/ (super 86) Sr ratio from that of seawater in parts per ten thousand). However, both higher (up to +62.2) and lower (down to +35.2) epsilon (super Sr) (sub sw) values are observed in the two tributaries with the elevated Sr concentrations. While Sr concentrations are likely to vary across the watershed due to differences in silicate and carbonate sources (as indicated by Mg/Na and Ca/Na ratios) the observed patterns of anomalous Sr concentrations and large deviations in epsilon (super Sr) (sub sw) suggest non-weathering sources. A full set of geochemical data and multiple season sampling will be required to characterize and identify these sources. JF - American Geophysical Union Fall Meeting AU - Wall, A J AU - Capo, R C AU - Stewart, B W AU - Lavin, S M AU - Hakala, A AU - Schroeder, K T AU - Casson, L W AU - Monnell, J D AU - States, S AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract H34B EP - 06 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637527667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+baseline+geochemical+and+Sr+isotope+assessment+of+surface+waters+in+the+Allegheny+River+watershed%2C+Pennsylvania%2C+USA&rft.au=Wall%2C+A+J%3BCapo%2C+R+C%3BStewart%2C+B+W%3BLavin%2C+S+M%3BHakala%2C+A%3BSchroeder%2C+K+T%3BCasson%2C+L+W%3BMonnell%2C+J+D%3BStates%2C+S%3BAnonymous&rft.aulast=Wall&rft.aufirst=A&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/10.1016%2Fj.addbeh.2016.08.034 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Partitioning of organic compounds into supercritical CO (sub 2) in depleted oil reservoirs; a review AN - 1629941714; 2014-098237 AB - Depleted oil reservoirs, with enhanced oil recovery, will be one of the first adopters of carbon capture and storage (CCS), which is a promising mitigation strategy for global climate change. The large scale implementation of CCS mandates better understanding of the risks associated with CO2 injection, especially in regards to potential leakage of the stored CO2. Organics, in the residual oil and dissolved in the brine, can partition into supercritical CO2 (sc-CO2) and move with that phase if it leaks. This review presents an overview of the thermodynamic models and trends in experimental partitioning data needed to understand what compounds may be expected to move with the sc-CO2. There are two main types of thermodynamic models used for predicting the solubility of organic compounds in sc-CO2, equations of state and quantitative structure activity relationships. Both can predict the partitioning behavior of one compound in sc-CO2, however only equations of state can predict solubility in multicomponent systems. In addition, equations of state have been developed to determine the effect of electrolytes on the partitioning behavior of organics dissolved in brines. There are three main trends in the partitioning behavior of organics in sc-CO2: Pure phase solubility follows trends in vapor pressure; compounds with higher volatility have higher solubility in sc-CO2. Second, the partitioning from water to sc-CO2 follows trends in Henry's constants, which follow the relative solubility of a compound in both the sc-CO2 and aqueous phases. Thirdly, the solubility of a compound can be enhanced by the presence of another; highly volatile compounds enhance the solubility of compounds with lower volatility. Finally, the review presents the gaps in experimental research that can be used to improve the modeling of the partitioning behavior of organics in sc-CO2, specifically in regards to co-solvency effects and the effects of electrolytes on the partitioning of dissolved organic compounds between oilfield brines and sc-CO2. JF - American Geophysical Union Fall Meeting AU - Burant, Aniela AU - Lowry, G V AU - Karamalidis, A AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract H23A EP - 1341 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629941714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Partitioning+of+organic+compounds+into+supercritical+CO+%28sub+2%29+in+depleted+oil+reservoirs%3B+a+review&rft.au=Burant%2C+Aniela%3BLowry%2C+G+V%3BKaramalidis%2C+A%3BAnonymous&rft.aulast=Burant&rft.aufirst=Aniela&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2012/FM/sections/H/sessions/H23A/abstracts/H23A-1341.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Co-sequestration geochemical modeling; simple brine solution + CO (sub 2) -O (sub 2) -SO (sub 2) AN - 1629940947; 2014-098209 AB - Class H well cement (LaFarge) was exposed to supercritical CO (sub 2) to evaluate the impact of brine chemistry on the well cement. Simulated experimental downhole conditions include a pressure of 28.6 MPa and a temperature of 50 degrees C. Brine composition was formulated from the NETL NATCARB database, resulting in a simple solution of 1 M (NaCl, MgCl (sub 2) , CaCl (sub 2) ). It was determined that the brine chemistry plays a vital role in determining the degree and type of alteration of cement in carbon sequestration conditions. The implications of co-sequestration (CO (sub 2) /O (sub 2) /SO (sub 2) mixtures) from of oxy-fueled combustion, coal gasification and sour gas have been considered. Geochemical modeling was conducted to understand the interaction between formation brine, cement and co-contaminant gases, using a gas composition of 95.5% CO (sub 2) , 4% O (sub 2) , and 1.5% SO (sub 2) . The modeling results are significant in determining the validity of co-sequestering coal flue gas containing SOx gases or sour hydrocarbon gas which could potentially produce pyrite or other sulfur-bearing species in the cement via mineralization trapping. Thermodynamic components of aqueous species, gases, and minerals were used to calculate the pH and mineral saturation indices using CHIM-XPT. The computed pH of the solution is 4.34. The total sulfate molality within the brine is 0.0095 M. In experimental conditions of 600 mL of brine, 0.0057 moles of sulfate will be converted into 5.7 mL of sulfuric acid. The modeling shows that an excess of 31% O (sub 2) forms, indicating that H (sub 2) S from SO (sub 2) disporportionation is oxidized to sulfate, thus no gaseous H (sub 2) S will form. Remaining SO (sub 2) in the experimental headspace has a predicted mole fraction is 10 (super -46) . Additional SO (sub 2) gas added to the system produces the reaction to precipitate gypsum. Additional gas reactions precipitate gypsum, anhydrite, calcite, and dolomite. JF - American Geophysical Union Fall Meeting AU - Verba, Circe AU - Kutchko, Barbara G AU - Reed, M H AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract H23A EP - 1313 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629940947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Co-sequestration+geochemical+modeling%3B+simple+brine+solution+%2B+CO+%28sub+2%29+-O+%28sub+2%29+-SO+%28sub+2%29&rft.au=Verba%2C+Circe%3BKutchko%2C+Barbara+G%3BReed%2C+M+H%3BAnonymous&rft.aulast=Verba&rft.aufirst=Circe&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2012/FM/sections/H/sessions/H23A/abstracts/H23A-1313.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Fractured natural gas reservoir tracer studies modeled using FRACGEN and NFFLOW AN - 1629940185; 2014-095911 AB - FRACGEN, written in FORTRAN, generates a stochastic realization of the fracture network in a reservoir using whatever available data from such sources as well logs, nearby outcrops, seismic studies, information from analogous reservoirs, and information from geologic maps. NFFLOW, also written in FORTRAN, uses the fracture network and information on rock matrix porosity and permeability to determine the time and spatial distributions of reservoir pressure and fluid composition as well as either well bottom pressure or well flow. Applications of FRACGEN and NFFLOW to simulate reservoir tracer studies are presented. JF - American Geophysical Union Fall Meeting AU - Boyle, E J AU - Sams, W AU - King, S AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract H23D EP - 1395 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629940185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Fractured+natural+gas+reservoir+tracer+studies+modeled+using+FRACGEN+and+NFFLOW&rft.au=Boyle%2C+E+J%3BSams%2C+W%3BKing%2C+S%3BAnonymous&rft.aulast=Boyle&rft.aufirst=E&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - A numerical approach to detect the presence or activation of a caprock fracture during CO (sub 2) injection AN - 1629939818; 2014-095882 AB - The objective of this research study is to investigate the ground response and fluid flow behavior of injected CO2 during geologic sequestration due to the presence of a fracture or fault in the overburden caprock media. Single phase and multiphase fluid flow models coupled with a geomechanical model were used to determine the pressure response, overburden ground movements, and CO2 leakage rate. Several different hypothetical fracture/fault scenarios were considered to study the influence of a fracture, fracture location, and fracture permeability. The injection of CO2 could increase the reservoir pressure and may lead to activation of an existing dormant fracture/fault present in the overburden caprock layer. The activation of this dormant fracture or fault may cause changes in fluid pressure, CO2 plume migration and ground deformations. In this study, a hypothetical CO2 injection scenario with the activation of a caprock fracture was considered. Results on the pressure changes, plume migration, leakage rate and overburden ground movements are presented in this paper. Results show that the pressure signature at a point in a monitoring overburden layer is distinctly different in the presence of a caprock fracture. Also, a change in the pressure signature at a given time is an indication of fracture activation. Results from the fluid flow model, both single-phase and multiphase, coupled with a geomechanical model show that ground deformation patterns may also be useful in identifying fracture activation and in developing geophysical monitoring technologies. JF - American Geophysical Union Fall Meeting AU - Bromhal, G S AU - Siriwardane, Hema AU - Gondle, Raj AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract H13L EP - 05 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629939818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+numerical+approach+to+detect+the+presence+or+activation+of+a+caprock+fracture+during+CO+%28sub+2%29+injection&rft.au=Bromhal%2C+G+S%3BSiriwardane%2C+Hema%3BGondle%2C+Raj%3BAnonymous&rft.aulast=Bromhal&rft.aufirst=G&rft.date=2012-12-01&rft.volume=23&rft.issue=7&rft.spage=588&rft.isbn=&rft.btitle=&rft.title=Journal+of+Women%27s+Health&rft.issn=15409996&rft_id=info:doi/10.1089%2Fjwh.2013.4598 L2 - http://abstractsearch.agu.org/meetings/2012/FM/sections/H/sessions/H13L/abstracts/H13L-05.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - High throughput strontium isotope method for monitoring fluid flow related to geological CO (sub 2) storage AN - 1629939592; 2014-098239 AB - Natural isotope tracers, such as strontium (Sr), can be a unique and powerful component of a monitoring strategy at a CO (sub 2) storage site, facilitating both the quantification of reaction progress for fluid-rock interactions and the tracking of brine migration caused by CO (sub 2) injection. Several challenges must be overcome, however, to enable the routine use of isotopic tracers, including the ability to rapidly analyze numerous aqueous samples with potentially complex chemical compositions. In a field situation, it might be necessary to analyze tens of samples over a short period of time to identify subsurface reactions and respond to unexpected fluid movement in the host formation. These conditions require streamlined Sr separation chemistry for samples ranging from pristine groundwaters to those containing high total dissolved solids, followed by rapid measurement of isotope ratios with high analytical precision. We have optimized Sr separation chemistry and MC-ICP-MS methods to provide rapid and precise measurements of isotope ratios in geologic, hydrologic, and environmental samples. These improvements will allow an operator to independently prepare samples for Sr isotope analysis off-site using fast, low cost chemical separation procedures and commercially available components. Existing vacuum-assisted Sr separation procedures were modified by using inexpensive disposable parts to eliminate cross contamination. Experimental results indicate that the modified columns provide excellent separation of Sr from chemically complex samples and that Sr can be effectively isolated from problematic matrix elements (e.g., Ca, Ba, K) associated with oilfield brines and formation waters. The separation procedure is designed for high sample throughput in which batches of 24 samples can be processed in approximately 2 hours, and are ready for Sr isotope measurements by MC-ICP-MS immediately after collection from the columns. Precise Sr isotope results can be achieved by MC-ICP-MS with a throughput of 4 to 5 samples per hour. Our mean measured value of NIST Sr isotope standard SRM 987 is 0.710265 + or - 0.000014 (2sigma , n=94). A range of brines and CO (sub 2) -rich fluids analyzed by this method yielded results within the analytical uncertainty of (super 87) Sr/ (super 86) Sr ratios previously determined by standard column separation and thermal ionization mass spectrometry. This method provides a fast and effective way to use Sr isotopes for monitoring purposes related to geological CO (sub 2) storage. JF - American Geophysical Union Fall Meeting AU - Capo, R C AU - Wall, Andrew J AU - Stewart, B W AU - Phan, T T AU - Jain, Jinesh C AU - Hakala, J Alexandra AU - Guthrie, George D AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract H23A EP - 1343 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629939592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=High+throughput+strontium+isotope+method+for+monitoring+fluid+flow+related+to+geological+CO+%28sub+2%29+storage&rft.au=Capo%2C+R+C%3BWall%2C+Andrew+J%3BStewart%2C+B+W%3BPhan%2C+T+T%3BJain%2C+Jinesh+C%3BHakala%2C+J+Alexandra%3BGuthrie%2C+George+D%3BAnonymous&rft.aulast=Capo&rft.aufirst=R&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2012/FM/sections/H/sessions/H23A/abstracts/H23A-1343.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Changes in natural microbial communities in basalts exposed to geological carbon sequestration conditions AN - 1618134784; 2014-083712 AB - One proposed solution to increasing concentrations of CO (sub 2) in the atmosphere is geologic sequestration of CO (sub 2) in the deep subsurface. Microorganisms are numerous in the subsurface and may play a pivotal role in the sequestration of CO (sub 2) . The Wallula pilot well in Eastern Washington state provided the opportunity to investigate how a native microbial community will respond to the injection of supercritical CO (sub 2) (scCO (sub 2) ) into basalt. Formation water from the depth of planned CO (sub 2) sequestration was used to inoculate basalt cores contained in pressure vessels maintained at the temperature (35 degrees C) and pressure (82.7 bar) of the sequestration interval and then the cores were exposed to scCO (sub 2) for as long as 146 days. Petrographic and scanning electron microscopy (SEM) analyses revealed the presence of thick ferro-magnesium carbonate lining the vugs in basalts exposed to scCO (sub 2) and microorganisms. SEM analysis also demonstrated the presence of possible biofilms within the fissures of the basalt core. Molecular analyses showed that microbes survived the scCO (sub 2) exposure and that cell numbers slowly increased over time after the initial exposure to scCO (sub 2) . Microbial community analysis revealed a shift in the community from being initially dominated by Proteobacteria to being dominated by Firmicutes, particularly the genus Alkaliphilus. These results indicate that microbes may assist in sealing fractures in geologic media and suggest the importance of subsurface monitoring of native microbial communities in formation waters exposed to CO (sub 2) during carbon sequestration. JF - American Geophysical Union Fall Meeting AU - Colwell, F S AU - Lavalleur, H J AU - Verba, C AU - Disenhof, C R AU - O'Connor, W AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract B43B EP - 0398 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618134784?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Changes+in+natural+microbial+communities+in+basalts+exposed+to+geological+carbon+sequestration+conditions&rft.au=Colwell%2C+F+S%3BLavalleur%2C+H+J%3BVerba%2C+C%3BDisenhof%2C+C+R%3BO%27Connor%2C+W%3BAnonymous&rft.aulast=Colwell&rft.aufirst=F&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-10-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Comparison of publically available methodologies for development of geologic storage estimates for carbon dioxide in saline formations AN - 1618134638; 2014-083636 AB - High-level estimates of CO2 storage potential at the national, regional, and basin scale are required to assess the potential for carbon capture, utilization, and storage (CCUS) technologies to reduce CO2 emissions for application to saline formations. Both private and public entities worldwide rely on CO2 storage potential estimates for broad energy-related government policy and business decisions. High-level estimates of CO2 geologic storage potential, however, have a high degree of uncertainty because the assessments rely on simplifying assumptions due to the deficiency or absence of data from the subsurface associated with areas of potential storage in saline formations and the natural heterogeneity of geologic formations in general, resulting in undefined rock properties. As site characterization progresses to individual CO2 storage sites, additional site-specific data will likely be collected and analyzed that will allow for the refinement of high-level CO2 storage resource estimates and development of CO2 storage capacities. Until such detailed characterization can be documented, dependable high-level CO2 storage estimates are essential to ensure successful widespread deployment of CCUS technologies. Initiatives for assessing CO2 geologic storage potential have been conducted since 1993. Although dependable high-level CO2 storage estimates are essential to ensure successful deployment of CCUS technologies, it is difficult to assess the uncertainty of these estimates without knowing how the current methodologies targeted at high-level CO2 storage resource estimates for saline formations compare to one another. In this study, we compare high-level CO2 methodologies for development of geologic storage estimates for CO2 in saline formations to assess the uncertainty associated with various methodologies. The methodologies applied are listed as follows: (1) U. S. DOE Methodology: Development of Geologic Storage Potential for Carbon Dioxide at the National and Regional Scale, (2) Carbon Sequestration Leadership Forum: CO2 Storage Capacity Estimation: Methodology and Gaps, (3) U. S. Geologic Survey: A Probabilistic Assessment Methodology for the Evaluation of Geologic Carbon Dioxide Storage, (4) Szulczewski, M., MacMinn, C. W., Herzog, H. J., Juanes, R., 2012 Proc. Natl. Acad. Sci.: Lifetime of carbon capture and storage as a climate-change mitigation technology, and (5) Zhou, Q., Birkholzer, J. T., Tsang, C.-F., Rutqvist, J., 2008 Int. J. of Greenhouse Gas Control 2, 626-639: A method for quick assessment of CO2 storage capacity in closed and semi-closed saline formation. The methodologies are applied to formations throughout the United States. JF - American Geophysical Union Fall Meeting AU - Goodman, A L AU - Strazisar, B R AU - Guthrie, G D AU - Bromhal, G S AU - Anonymous Y1 - 2012/12// PY - 2012 DA - December 2012 SP - Abstract B32C EP - 06 PB - American Geophysical Union, Washington, DC VL - 2012 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618134638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Comparison+of+publically+available+methodologies+for+development+of+geologic+storage+estimates+for+carbon+dioxide+in+saline+formations&rft.au=Goodman%2C+A+L%3BStrazisar%2C+B+R%3BGuthrie%2C+G+D%3BBromhal%2C+G+S%3BAnonymous&rft.aulast=Goodman&rft.aufirst=A&rft.date=2012-12-01&rft.volume=2012&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2012 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-10-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Isotope tracers to identify origin and verify safe disposal of produced water from the Middle Devonian Marcellus Formation, Pennsylvania, USA AN - 1477830847; 2014-001822 AB - Extraction of natural gas, natural gas liquids, and oil from shales via hydraulic fracturing results in large volumes of co-produced water, usually with high levels of total dissolved solids (TDS). Increases in TDS of ground or surface waters in the drilling region can potentially be attributed to produced water leakage or improper disposal. However, the Appalachian Basin has a long history of fossil fuel exploration and production that predates the Marcellus Shale gas play, with potential impacts to streams and aquifers from coal mine drainage, fly ash disposal ponds, and brines and drilling-related fluids from shallow legacy gas wells. Multiple geochemical and isotopic tools, along with a detailed understanding of water-rock interaction in the subsurface environment, are needed to sort out the contributions from these different sources. Isotope tracers can add an extra dimension to standard geochemical monitoring tools. For example, we carried out a strontium isotope study of Marcellus produced waters to aid in identification of leakage and verification of safe disposal. In order for the isotope ratio of strontium ( (super 87) Sr/ (super 86) Sr) to be used successfully as a natural tracer in ground and surface waters, the values of the potential endmembers must be distinct. Produced water samples from four counties in Pennsylvania spanning a distance of approximately 375 km yield a relatively restricted range of (super 87) Sr/ (super 86) Sr values from 0.7100 to 0.7121, consistent with leaching experiments on Marcellus Formation drill cuttings. Strontium isotope data from other potential TDS sources over a wide geographic and stratigraphic range, including produced waters from upper Devonian Venango and Bradford sands, indicate that most are isotopically distinct from Marcellus waters, and that influxes from these sources at any given location tend to fall within a fairly narrow range. This demonstrates that the Sr isotope ratio is likely to be a sensitive tracer for verification of safe produced water disposal. Ongoing work includes further development of the Sr, Li, U, and Nd isotope systems to gain insight into water-shale interaction and the geologic history of gas-producing shales, as well as baseline characterization of surface waters in the heart of the Marcellus gas producing region. JF - Abstracts with Programs - Geological Society of America AU - Stewart, Brian W AU - Capo, Rosemary C AU - Chapman, Elizabeth C AU - Hammack, Richard W AU - Schroeder, Karl T AU - Wall, Andrew J AU - Macpherson, G L AU - Phan, Thai T AU - Gardiner, James B AU - Anonymous Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 338 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - isotopes KW - natural gas KW - petroleum KW - cuttings KW - stable isotopes KW - seepage KW - ground water KW - oil wells KW - water-rock interaction KW - Marcellus Shale KW - tracers KW - rare earths KW - drilling KW - hydraulic fracturing KW - alkaline earth metals KW - acid mine drainage KW - Paleozoic KW - isotope ratios KW - surface water KW - solutes KW - pollution KW - aquifers KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - Middle Devonian KW - Devonian KW - metals KW - waste disposal KW - Pennsylvania KW - neodymium KW - leaching KW - strontium KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1477830847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Isotope+tracers+to+identify+origin+and+verify+safe+disposal+of+produced+water+from+the+Middle+Devonian+Marcellus+Formation%2C+Pennsylvania%2C+USA&rft.au=Stewart%2C+Brian+W%3BCapo%2C+Rosemary+C%3BChapman%2C+Elizabeth+C%3BHammack%2C+Richard+W%3BSchroeder%2C+Karl+T%3BWall%2C+Andrew+J%3BMacpherson%2C+G+L%3BPhan%2C+Thai+T%3BGardiner%2C+James+B%3BAnonymous&rft.aulast=Stewart&rft.aufirst=Brian&rft.date=2012-11-01&rft.volume=44&rft.issue=7&rft.spage=338&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2012 annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - PubXState - CO N1 - Last updated - 2014-01-16 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acid mine drainage; alkaline earth metals; aquifers; cuttings; Devonian; drilling; ground water; hydraulic fracturing; isotope ratios; isotopes; leaching; Marcellus Shale; metals; Middle Devonian; natural gas; Nd-144/Nd-143; neodymium; oil wells; Paleozoic; Pennsylvania; petroleum; pollution; rare earths; seepage; solutes; Sr-87/Sr-86; stable isotopes; strontium; surface water; tracers; United States; waste disposal; water-rock interaction ER - TY - JOUR T1 - Understanding natural variations of dissolved methane in areas of accelerating Marcellus Shale gas development AN - 1447102518; 2013-084523 AB - There is rising concern that hydraulic fracture stimulation during shale gas drilling or leaky well casings can allow dissolved methane (commonly referred to as stray gas) to escape into public drinking water supplies, which can be an explosion and fire hazard. However, in coal mining areas of the Appalachians, methane can also originate from shallow gas bearing strata, coalbeds and gas storage fields. Therefore, an increase in methane concentrations cannot always be attributed to Marcellus Shale drilling activity. To understand any methane leaks associated with Shale gas drilling there is a need to 1) understand baseline variations in dissolved methane concentrations, and 2) develop a suite of natural geochemical tracers that can track sources of dissolved methane in the groundwaters and surface waters of the area. In this study, groundwater samples were collected from aquifers overlying Marcellus shale in north-central West Virginia, with no active shale gas drilling in the study area during collection. Samples were analyzed for C and H isotopic signatures and concentrations of dissolved methane, dissolved CO (sub 2) concentrations, and C isotopic signatures of dissolved inorganic carbon. To understand the isotopic compositions of possible sources of methane in study area, samples were collected from producing wells in shallow Devonian sands and Marcellus Shale, deeper gas producing formations, and a coalbed methane well. The isotopic and geochemical data suggests that dissolved methane in the sampled groundwaters is primarily generated by deeper thermogenic sources and/or microbial sources via CO (sub 2) reduction in deeper marine formations. Furthermore, samples with higher methane concentrations do not show a clear correlation with abandoned oil and gas wells, coalbed methane wells and/or abandoned mine lands. We propose that methane from deeper sources is migrating into the sampled groundwater aquifers through natural fractures and faults over geological time scales. JF - Abstracts with Programs - Geological Society of America AU - Sharma, Shikha AU - Mulder, Michon L AU - Sack, Andrea AU - Bowman, Lindsey AU - Carr, Timothy AU - Schroeder, Karl T AU - Hammack, Richard W AU - White, Jeremy S AU - Chambers, Douglas B AU - Anonymous Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 313 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - north-central West Virginia KW - well stimulation KW - development KW - isotopes KW - natural gas KW - aliphatic hydrocarbons KW - petroleum KW - drinking water KW - stable isotopes KW - variations KW - fractures KW - Marcellus Shale KW - carbon KW - movement KW - drilling KW - water pollution KW - faults KW - West Virginia KW - hydraulic fracturing KW - methane KW - pollutants KW - Paleozoic KW - isotope ratios KW - C-13/C-12 KW - solutes KW - pollution KW - alkanes KW - samples KW - organic compounds KW - Middle Devonian KW - Devonian KW - D/H KW - hydrogen KW - hydrocarbons KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447102518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Understanding+natural+variations+of+dissolved+methane+in+areas+of+accelerating+Marcellus+Shale+gas+development&rft.au=Sharma%2C+Shikha%3BMulder%2C+Michon+L%3BSack%2C+Andrea%3BBowman%2C+Lindsey%3BCarr%2C+Timothy%3BSchroeder%2C+Karl+T%3BHammack%2C+Richard+W%3BWhite%2C+Jeremy+S%3BChambers%2C+Douglas+B%3BAnonymous&rft.aulast=Sharma&rft.aufirst=Shikha&rft.date=2012-11-01&rft.volume=44&rft.issue=7&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2012 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-31 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; C-13/C-12; carbon; D/H; development; Devonian; drilling; drinking water; faults; fractures; hydraulic fracturing; hydrocarbons; hydrogen; isotope ratios; isotopes; Marcellus Shale; methane; Middle Devonian; movement; natural gas; north-central West Virginia; organic compounds; Paleozoic; petroleum; pollutants; pollution; samples; solutes; stable isotopes; United States; variations; water pollution; well stimulation; West Virginia ER - TY - JOUR T1 - Lithium concentrations and isotope ratios in produced water from the Marcellus Formation, Pennsylvania, USA AN - 1447101025; 2013-084534 AB - Water from shale is not typically available for chemical analysis because formation water that accompanies conventional oil and gas production is from sandstone or carbonate reservoirs. However, hydraulic fracturing of shale to stimulate natural gas, natural gas liquids, and oil production also liberates formation waters, and these waters are co-produced at the well head with the gas and/or liquid products. Produced water from shale formations represents a new opportunity for understanding water-rock interaction in sedimentary rocks. We used quadrupole ICP-MS and multi-collector ICP-MS to determine concentration and isotope ratio of lithium, respectively, in produced waters from hydraulically fractured shales of the Middle Devonian Marcellus Formation from four counties in Pennsylvania spanning 375 km (super 2) . In comparison with existing data from conventional oil and gas reservoir formation waters, the Marcellus produced waters contain elevated Li/Cl * 10,000 ( approximately 10 to 15 vs. <1 to approximately 12). Other ratios (Li/Mg, Br/Cl) are also higher than most formation waters and geothermal fluids. In published analyses of formation waters, delta (super 7) Li varies inversely with concentration. The d (super 7) Li measurements of the shale fluids analyzed for this study ( approximately 6.5 to 11ppm) are much lighter than average seawater ( approximately 31ppm) and cluster at the lowest delta (super 7) Li and highest Li concentrations of formation waters published so far. These geochemical characteristics of Marcellus produced waters suggest strong influence from clay minerals and provide a distinctive and potentially useful diagnostic tracer for contamination investigations. JF - Abstracts with Programs - Geological Society of America AU - Macpherson, G L AU - Capo, Rosemary C AU - Stewart, Brian W AU - Phan, Thai T AU - Schroeder, Karl T AU - Hammack, Richard W AU - Anonymous Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 315 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - well stimulation KW - isotopes KW - natural gas KW - mass spectra KW - petroleum KW - stable isotopes KW - ground water KW - sedimentary rocks KW - Marcellus Shale KW - tracers KW - spectra KW - water pollution KW - geochemistry KW - Li-7/Li-6 KW - hydraulic fracturing KW - shale KW - Paleozoic KW - lithium KW - isotope ratios KW - alkali metals KW - pollution KW - hydrochemistry KW - measurement KW - ICP mass spectra KW - Middle Devonian KW - Devonian KW - metals KW - diagenesis KW - Pennsylvania KW - clastic rocks KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447101025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Lithium+concentrations+and+isotope+ratios+in+produced+water+from+the+Marcellus+Formation%2C+Pennsylvania%2C+USA&rft.au=Macpherson%2C+G+L%3BCapo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BPhan%2C+Thai+T%3BSchroeder%2C+Karl+T%3BHammack%2C+Richard+W%3BAnonymous&rft.aulast=Macpherson&rft.aufirst=G&rft.date=2012-11-01&rft.volume=44&rft.issue=7&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2012 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-31 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkali metals; clastic rocks; Devonian; diagenesis; geochemistry; ground water; hydraulic fracturing; hydrochemistry; ICP mass spectra; isotope ratios; isotopes; Li-7/Li-6; lithium; Marcellus Shale; mass spectra; measurement; metals; Middle Devonian; natural gas; Paleozoic; Pennsylvania; petroleum; pollution; sedimentary rocks; shale; spectra; stable isotopes; tracers; United States; water pollution; well stimulation ER - TY - JOUR T1 - Rapid field measurement of dissolved inorganic carbon based on CO (sub 2) analysis AN - 1442375821; 2013-079543 AB - Dissolved inorganic carbon (DIC) is commonly measured in water and is an important parameter for understanding carbonate equilibrium, carbon cycling, and water-rock interaction. While accurate measurements can be made in the analytical laboratory, we have developed a rapid, portable technique that can be used to obtain accurate and precise data in the field as well. Sample analysis is completed by mixing 100 mL of water with 10 mL of 1 M sodium citrate buffer (pH approximately 4.5) in a closed system and then measuring the CO (sub 2) in solution using an Anton Paar CarboQC (super TM) carbonation meter. The final pH of the sample-buffer mixture is measured and the DIC is calculated using the measured concentration of [CO (sub 2) ], the temperature-corrected dissociation constants for carbonic acid, the pH, activity coefficients for the carbonate ions, and accounting for the dilution caused by the volume of the buffer. In addition to lowering the pH of the final solution so that most of the DIC has been converted into CO (sub 2) ; the buffer also establishes the same high ionic strength in the mixtures so that the activity coefficients are effectively constant over the entire natural range of DIC tested. Calculated DIC for standard sodium bicarbonate solutions was accurate within 0.5 mM C up to a concentration of 15 mM. In the field, a closed mixing system for water and buffer is accomplished by first collecting the water sample in a 140 mL syringe, after which a smaller syringe is connected to the larger syringe and the buffer injected. In this way, the increased mixed volume is accommodated by movement of the piston in the large syringe, no headspace is generated during mixing, and no CO (sub 2) is lost prior to analysis using the carbonation meter. The method has been tested using alternative buffers (phosphate, phosphate-citrate, acetate) with similar results. The potential interaction between CO (sub 2) and organic buffers has also been evaluated by the addition of varying amounts of methanol (0.05 to 0.5 mL) as an organic modifier. To supplement the testing of known standards, DIC was determined in samples collected from a variety of geochemical settings and compared with laboratory analysis. JF - Abstracts with Programs - Geological Society of America AU - Vesper, Dorothy J AU - Edenborn, Harry M AU - Anonymous Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 395 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 7 SN - 0016-7592, 0016-7592 KW - precision KW - buffers KW - solutes KW - measurement KW - inorganic materials KW - geochemical cycle KW - carbon dioxide KW - water-rock interaction KW - dilution KW - mixing KW - carbon KW - testing KW - carbon cycle KW - geochemistry KW - accuracy KW - pH KW - field studies KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1442375821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Rapid+field+measurement+of+dissolved+inorganic+carbon+based+on+CO+%28sub+2%29+analysis&rft.au=Vesper%2C+Dorothy+J%3BEdenborn%2C+Harry+M%3BAnonymous&rft.aulast=Vesper&rft.aufirst=Dorothy&rft.date=2012-11-01&rft.volume=44&rft.issue=7&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2012 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-17 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - accuracy; buffers; carbon; carbon cycle; carbon dioxide; dilution; field studies; geochemical cycle; geochemistry; inorganic materials; measurement; mixing; pH; precision; solutes; testing; water-rock interaction ER - TY - JOUR T1 - Major and trace element cycling within the passive water treatment systems of one of the world's first living buildings at Phipps Conservatory and Botanical Gardens, Pittsburgh, PA AN - 1442375208; 2013-079481 AB - Phipps Conservatory and Botanical Gardens in Pittsburgh, PA is completing construction of the Center for Sustainable Landscapes, which will capture and treat all of its own water on site. The center is designed to meet or exceed green and sustainable building standards and practices: the Living Building Challenge; LEED (super R) Platinum and a 4-star SITES Certification for landscapes. Collaborative scientific research between Phipps and NETL will monitor water quality variables associated with various water management systems on-site. These systems lessen the load on municipal sewage treatment and potable water systems, and include rainwater harvesting, a lagoon system for storm water treatment, a constructed wetland system for sanitary water treatment, rain gardens, green roofs and permeable paving. Chemical analyses of water discharging from each treatment and management operation within the facility are presented that identify the major and minor trace elements associated with each treatment or water management process. Plans for the future collection and analysis of water, sediment and plant samples collected within the water management systems to better indicate system effectiveness over time and space are presented. The efficiency of carbon cycling and capture within the treatment systems will be estimated based on chemical analyses, CO2 respiration, and stable isotope analyses. Plant- and microbe-based treatment processes are expected to vary in effectiveness as a function of seasonal variations in temperature and plant growth. The analysis of selected trace elements and nutrients within the treatment systems will provide more detailed information on the role and rates of biological processes in precipitation, conversion and immobilization of dissolved species of concern. The concentration and fate of water pollutants in treated water used for greenhouse plant watering that may influence plant growth, such as fluoride associated with treated drinking water, will be specifically determined in these analyses. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, Harry M AU - Vesper, Dorothy J AU - Jain, Jinesh AU - Nielsen, Katherine B AU - Cugini, Anthony V AU - Perkovich, Joel AU - Piacentini, Richard AU - Anonymous Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 385 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - respiration KW - processes KW - water management KW - solutes KW - hydrochemistry KW - geochemical cycle KW - carbon dioxide KW - nutrients KW - Allegheny County Pennsylvania KW - major elements KW - Phipps Conservatory and Botanical Gardens KW - water treatment KW - trace elements KW - Pennsylvania KW - geochemistry KW - Pittsburgh Pennsylvania KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1442375208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Major+and+trace+element+cycling+within+the+passive+water+treatment+systems+of+one+of+the+world%27s+first+living+buildings+at+Phipps+Conservatory+and+Botanical+Gardens%2C+Pittsburgh%2C+PA&rft.au=Edenborn%2C+Harry+M%3BVesper%2C+Dorothy+J%3BJain%2C+Jinesh%3BNielsen%2C+Katherine+B%3BCugini%2C+Anthony+V%3BPerkovich%2C+Joel%3BPiacentini%2C+Richard%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=Harry&rft.date=2012-11-01&rft.volume=44&rft.issue=7&rft.spage=385&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2012 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-17 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Allegheny County Pennsylvania; carbon dioxide; geochemical cycle; geochemistry; hydrochemistry; major elements; nutrients; Pennsylvania; Phipps Conservatory and Botanical Gardens; Pittsburgh Pennsylvania; processes; respiration; solutes; trace elements; United States; water management; water treatment ER - TY - JOUR T1 - Water quality issues in an urban surface water system; a geochemical and Sr isotope assessment of the Allegheny River watershed near Pittsburgh, Pennsylvania, USA AN - 1438968498; 2013-077204 AB - The Allegheny River is the source of drinking water for the city of Pittsburgh and its surrounding communities. Accurate assessment of contaminant sources in the watershed, and their impact on the river water quality, is complicated by complexity of inputs such as industrial waste water treatment facilities, legacy acid mine drainage (AMD), oil and gas production, and coal combustion waste sites. Our goal is to establish a baseline for water quality and identify contaminant sources that lead to perturbations to background conditions by combining geochemical and Sr isotopic analysis of daily sampling of Allegheny River water at the Pittsburgh Water Treatment Plant intake with seasonal synoptic measurements across 45 sites within the watershed. Sr isotopes are a natural tracer with the potential to identify inputs to streams from Marcellus produced waters, AMD, and fluids associated with Upper Devonian gas formations in the Allegheny River watershed (Chapman et al. 2012, Env. Sci. Tech. 46:3545). Preliminary results from Allegheny River intake samples over a two month period indicate that Sr concentrations ranged from 140 ppb to 260 ppb, and (super 87) Sr/ (super 86) Sr values ranged from 0.7124 to 0.7127 (epsilon (sub sr) (super sw) = +45.5 to +49.8, where epsilon (sub sr) (super sw) is the deviation of the (super 87) Sr/ (super 86) Sr ratio from that of seawater in parts per ten thousand). In comparison, samples taken in April and July 2012 from seven Allegheny headwater tributaries had lower Sr concentrations (mean approximately 73 ppb; range = 30 to 115 ppb) and epsilon (sub sr) (super sw) values varied from +49.1 and +52.6. Ongoing geochemical and isotopic analysis and additional sampling is underway to identify and quantify contaminant fluxes and model the long-term influence of inputs into the watershed. JF - Abstracts with Programs - Geological Society of America AU - Wall, Andrew J AU - Capo, Rosemary C AU - Stewart, Brian W AU - Lavin, Sarah M AU - Hakala, J Alexandra AU - Schroeder, Karl T AU - Casson, Leonard W AU - Monnell, Jason D AU - States, Stanley AU - Anonymous Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 357 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - water quality KW - isotopes KW - waste water KW - natural gas KW - Allegheny River KW - watersheds KW - petroleum KW - drinking water KW - stable isotopes KW - urban environment KW - quantitative analysis KW - Marcellus Shale KW - water treatment KW - tracers KW - water pollution KW - geochemistry KW - Upper Devonian KW - hydrology KW - alkaline earth metals KW - acid mine drainage KW - Paleozoic KW - isotope ratios KW - background level KW - surface water KW - pollution KW - hydrochemistry KW - samples KW - measurement KW - models KW - Sr-87/Sr-86 KW - Allegheny County Pennsylvania KW - Middle Devonian KW - Devonian KW - metals KW - seasonal variations KW - waste disposal KW - Pennsylvania KW - strontium KW - Pittsburgh Pennsylvania KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438968498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Water+quality+issues+in+an+urban+surface+water+system%3B+a+geochemical+and+Sr+isotope+assessment+of+the+Allegheny+River+watershed+near+Pittsburgh%2C+Pennsylvania%2C+USA&rft.au=Wall%2C+Andrew+J%3BCapo%2C+Rosemary+C%3BStewart%2C+Brian+W%3BLavin%2C+Sarah+M%3BHakala%2C+J+Alexandra%3BSchroeder%2C+Karl+T%3BCasson%2C+Leonard+W%3BMonnell%2C+Jason+D%3BStates%2C+Stanley%3BAnonymous&rft.aulast=Wall&rft.aufirst=Andrew&rft.date=2012-11-01&rft.volume=44&rft.issue=7&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2012 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acid mine drainage; alkaline earth metals; Allegheny County Pennsylvania; Allegheny River; background level; Devonian; drinking water; geochemistry; hydrochemistry; hydrology; isotope ratios; isotopes; Marcellus Shale; measurement; metals; Middle Devonian; models; natural gas; Paleozoic; Pennsylvania; petroleum; Pittsburgh Pennsylvania; pollution; quantitative analysis; samples; seasonal variations; Sr-87/Sr-86; stable isotopes; strontium; surface water; tracers; United States; Upper Devonian; urban environment; waste disposal; waste water; water pollution; water quality; water treatment; watersheds ER - TY - JOUR T1 - A FEM approach to measure Skempton's B coefficient for supercritical CO (sub 2) -saturated rock AN - 1220563440; 2013-002410 AB - Skempton's B coefficient is an important characteristic of a porous medium that describes the way in which pore pressure responds to a change in the mean stress under undrained conditions. This number is well known for many sedimentary rocks under water- and/or oil-saturated conditions. However, due to the difficulty in conducting laboratory tests on supercritical CO (sub 2) -saturated rock because of the specific requirements in terms of pressure and temperature to ensure the supercritical status of CO (sub 2) , this number is not available for a supercritical CO (sub 2) -saturated rock. A finite element method (FEM) approach was developed in an effort to solve this problem. We first calibrated our numerical rock models according to the poroelastic properties of Berea sandstone and Indiana limestone, and conducted a series of numerical tests to measure their Skempton's B coefficients under water-saturated conditions. The test results, which were found to be very close to the laboratory measurements, gave us confidence to extend this testing approach to a CO (sub 2) -saturated rock by changing the pore fluid from water to supercritical CO (sub 2) . The numerical test results showed that the Skempton's B coefficient for supercritical CO (sub 2) -saturated rock is considerably different (lower) than that of water-saturated conditions. This implies that the poromechanical conditions of supercritical CO (sub 2) -saturated rock are significantly different from those of water- or oil-saturated rock, and the change of pore fluids from water/oil to supercritical CO (sub 2) may introduce a significant change in the poromechanical properties of the rock. JF - Environmental & Engineering Geoscience AU - Zhou, Xuejun AU - Burbey, Thomas J Y1 - 2012/11// PY - 2012 DA - November 2012 SP - 343 EP - 355 PB - Association of Environmental & Engineering Geologists and The Geological Society of America, College Station, TX VL - 18 IS - 4 SN - 1078-7275, 1078-7275 KW - limestone KW - Poisson's ratio KW - characterization KW - sandstone KW - Skempton's B coefficient KW - elastic constants KW - uniaxial tests KW - rock mechanics KW - India KW - carbon dioxide KW - laboratory studies KW - finite element analysis KW - sedimentary rocks KW - Indian Peninsula KW - pore pressure KW - Asia KW - experimental studies KW - elasticity KW - carbon sequestration KW - numerical models KW - Paleozoic KW - poroelasticity KW - stress KW - Berea Sandstone KW - porous materials KW - porosity KW - saturation KW - Indiana Limestone KW - carbonate rocks KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1220563440?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+%26+Engineering+Geoscience&rft.atitle=A+FEM+approach+to+measure+Skempton%27s+B+coefficient+for+supercritical+CO+%28sub+2%29+-saturated+rock&rft.au=Zhou%2C+Xuejun%3BBurbey%2C+Thomas+J&rft.aulast=Zhou&rft.aufirst=Xuejun&rft.date=2012-11-01&rft.volume=18&rft.issue=4&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Environmental+%26+Engineering+Geoscience&rft.issn=10787275&rft_id=info:doi/ L2 - http://eeg.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Association of Engineering Geologists and the Geological Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 25 N1 - PubXState - TX N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-11-29 N1 - CODEN - ENGEA9 N1 - SubjectsTermNotLitGenreText - Asia; Berea Sandstone; carbon dioxide; carbon sequestration; carbonate rocks; characterization; clastic rocks; elastic constants; elasticity; experimental studies; finite element analysis; India; Indian Peninsula; Indiana Limestone; laboratory studies; limestone; numerical models; Paleozoic; Poisson's ratio; pore pressure; poroelasticity; porosity; porous materials; rock mechanics; sandstone; saturation; sedimentary rocks; Skempton's B coefficient; stress; uniaxial tests ER - TY - CPAPER T1 - A Preliminary Study On Uncertainties in CFD Simulations of a Pilot-Scale Circulating Fluidized Bed Riser T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313123110; 6169829 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Li, Tingwen AU - Gel, Aytekin AU - Shahnam, Mehrdad AU - Syamlal, Madhava Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Fluidized beds KW - Simulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313123110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=A+Preliminary+Study+On+Uncertainties+in+CFD+Simulations+of+a+Pilot-Scale+Circulating+Fluidized+Bed+Riser&rft.au=Li%2C+Tingwen%3BGel%2C+Aytekin%3BShahnam%2C+Mehrdad%3BSyamlal%2C+Madhava&rft.aulast=Li&rft.aufirst=Tingwen&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Photochemical Reduction of CO2 Using Delafossite Oxides T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313122624; 6167033 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Lekse, Jonathan AU - James, P AU - Underwood, M AU - Matranga, Christopher Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Photochemicals KW - Carbon dioxide KW - oxides UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313122624?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Photochemical+Reduction+of+CO2+Using+Delafossite+Oxides&rft.au=Lekse%2C+Jonathan%3BJames%2C+P%3BUnderwood%2C+M%3BMatranga%2C+Christopher&rft.aulast=Lekse&rft.aufirst=Jonathan&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Viscosity of Several Hydrocarbons At Temperatures to 533 K and Pressures to 276 Mpa T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313121983; 6168807 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Baled, Hseen AU - Enick, Robert AU - Burgess, Ward AU - Tapriyal, Deepak AU - Morreale, Bryan AU - Soong, Yee AU - Bamgbade, Babatunde AU - Wu, Yue AU - McHugh, Mark Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Temperature effects KW - Hydrocarbons KW - Viscosity KW - Pressure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313121983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Viscosity+of+Several+Hydrocarbons+At+Temperatures+to+533+K+and+Pressures+to+276+Mpa&rft.au=Baled%2C+Hseen%3BEnick%2C+Robert%3BBurgess%2C+Ward%3BTapriyal%2C+Deepak%3BMorreale%2C+Bryan%3BSoong%2C+Yee%3BBamgbade%2C+Babatunde%3BWu%2C+Yue%3BMcHugh%2C+Mark&rft.aulast=Baled&rft.aufirst=Hseen&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Co-Pyrolysis of Low Rank Coals and Biomass At Transport Gasifier Conditions T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313114028; 6170268 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Weiland, Nathan AU - Means, Nicholas AU - Guenther, Chris Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Coal KW - Biomass UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313114028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Co-Pyrolysis+of+Low+Rank+Coals+and+Biomass+At+Transport+Gasifier+Conditions&rft.au=Weiland%2C+Nathan%3BMeans%2C+Nicholas%3BGuenther%2C+Chris&rft.aulast=Weiland&rft.aufirst=Nathan&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Advanced Regulatory Control and Coordinated Plant-Wide Control Strategies for IGCC Targeted towards Improving Power Ramp-Rates T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313110602; 6169050 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Mahapatra, Priyadarshi AU - Zitney, Stephen Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Power plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313110602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Advanced+Regulatory+Control+and+Coordinated+Plant-Wide+Control+Strategies+for+IGCC+Targeted+towards+Improving+Power+Ramp-Rates&rft.au=Mahapatra%2C+Priyadarshi%3BZitney%2C+Stephen&rft.aulast=Mahapatra&rft.aufirst=Priyadarshi&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Moisture Removal for Enhanced CO2 Separation From Post-Combustion Flue Gas T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313107933; 6168238 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Fisher II, James AU - Siriwardane, Ranjani Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Flue gas KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313107933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Moisture+Removal+for+Enhanced+CO2+Separation+From+Post-Combustion+Flue+Gas&rft.au=Fisher+II%2C+James%3BSiriwardane%2C+Ranjani&rft.aulast=Fisher+II&rft.aufirst=James&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Injection of Carbon Dioxide and Nitrogen Into Methane Hydrate Reservoirs: Binary Hydrateressim Simulations T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313107842; 6167189 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Garapati, Nagasree AU - Anderson, Brian Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Methane KW - Simulation KW - Nitrogen KW - Reservoirs KW - hydrates KW - Carbon dioxide KW - Hydrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313107842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Injection+of+Carbon+Dioxide+and+Nitrogen+Into+Methane+Hydrate+Reservoirs%3A+Binary+Hydrateressim+Simulations&rft.au=Garapati%2C+Nagasree%3BAnderson%2C+Brian&rft.aulast=Garapati&rft.aufirst=Nagasree&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Theoretical Calculating the Thermodynamic Properties of Solid Sorbents for CO2 Capture Applications T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313107159; 6166424 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Duan, Yuhua Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Thermodynamics KW - Carbon dioxide KW - Sorbents KW - Thermodynamic properties UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313107159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Child%3A+Care%2C+Health+and+Development&rft.atitle=Maternal+anxiety+versus+depressive+disorders%3A+Specific+relations+to+infants%27+crying%2C+feeding+and+sleeping+problems&rft.au=Petzoldt%2C+J.%3BWittchen%2C+H.%E2%80%90U.%3BEinsle%2C+F.%3BMartini%2C+J.&rft.aulast=Petzoldt&rft.aufirst=J.&rft.date=2016-03-01&rft.volume=42&rft.issue=2&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Child%3A+Care%2C+Health+and+Development&rft.issn=03051862&rft_id=info:doi/10.1111%2Fcch.12292 L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - A Novel Mppic Methodology for Numerical Simulations of Gas-Solids Flows T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313107000; 6167158 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Garg, Rahul AU - Dietiker, Jean-Francois AU - Shahnam, Mehrdad Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Simulation KW - Mathematical models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313107000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=A+Novel+Mppic+Methodology+for+Numerical+Simulations+of+Gas-Solids+Flows&rft.au=Garg%2C+Rahul%3BDietiker%2C+Jean-Francois%3BShahnam%2C+Mehrdad&rft.aulast=Garg&rft.aufirst=Rahul&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - In Situ ATR-FTIR Analyses of CO2 Adsorption Processes in Porous Coordination Polymers T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313106953; 6166158 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Culp, Jeffrey AU - Goodman, Angela AU - Chirdon, Danielle AU - Kauffman, Kristi AU - Sui, Lang AU - Luebke, David AU - Matranga, Christopher Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Adsorption KW - Polymers KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313106953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=In+Situ+ATR-FTIR+Analyses+of+CO2+Adsorption+Processes+in+Porous+Coordination+Polymers&rft.au=Culp%2C+Jeffrey%3BGoodman%2C+Angela%3BChirdon%2C+Danielle%3BKauffman%2C+Kristi%3BSui%2C+Lang%3BLuebke%2C+David%3BMatranga%2C+Christopher&rft.aulast=Culp&rft.aufirst=Jeffrey&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Sintering of Copper-Based Catalysts for Methanol Synthesis From Carbon Dioxide T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313106877; 6166154 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Natesakhawat, Sittichai AU - Abdelsayed, Victor AU - Ohodnicki Jr, Paul AU - Howard, Bret AU - Lekse, Jonathan AU - Baltrus, John AU - Deng, Xingyi AU - Matranga, Christopher Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Catalysts KW - Carbon dioxide KW - Methanol UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313106877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Sintering+of+Copper-Based+Catalysts+for+Methanol+Synthesis+From+Carbon+Dioxide&rft.au=Natesakhawat%2C+Sittichai%3BAbdelsayed%2C+Victor%3BOhodnicki+Jr%2C+Paul%3BHoward%2C+Bret%3BLekse%2C+Jonathan%3BBaltrus%2C+John%3BDeng%2C+Xingyi%3BMatranga%2C+Christopher&rft.aulast=Natesakhawat&rft.aufirst=Sittichai&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Capture and Separation of CO2 From Binary Gas Mixtures Using Flexible Porous Coordination Polymers T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313105729; 6167554 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Culp, Jeffrey AU - Shi, Fan AU - Matranga, Christopher Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Polymers KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313105729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Capture+and+Separation+of+CO2+From+Binary+Gas+Mixtures+Using+Flexible+Porous+Coordination+Polymers&rft.au=Culp%2C+Jeffrey%3BShi%2C+Fan%3BMatranga%2C+Christopher&rft.aulast=Culp&rft.aufirst=Jeffrey&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Three-Dimensional Reacting Flow Simulation of a Chemical Looping Fuel Reactor T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313105100; 6167032 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Liu, Yong AU - Huckaby, E AU - Gallagher, Michael AU - Carpenter, Stephen Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Simulation KW - Fuels UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313105100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Three-Dimensional+Reacting+Flow+Simulation+of+a+Chemical+Looping+Fuel+Reactor&rft.au=Liu%2C+Yong%3BHuckaby%2C+E%3BGallagher%2C+Michael%3BCarpenter%2C+Stephen&rft.aulast=Liu&rft.aufirst=Yong&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Segregation At the Surfaces of Cu8Pd7M Hydrogen Separation Alloys in the Presence of Adsorbed O and S T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313104456; 6170298 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Tafen, De AU - Dogan, Omer AU - Miller, James AU - Baltrus, J Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Hydrogen KW - Alloys KW - alloys UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313104456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Segregation+At+the+Surfaces+of+Cu8Pd7M+Hydrogen+Separation+Alloys+in+the+Presence+of+Adsorbed+O+and+S&rft.au=Tafen%2C+De%3BDogan%2C+Omer%3BMiller%2C+James%3BBaltrus%2C+J&rft.aulast=Tafen&rft.aufirst=De&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Gasifier Performance Modeling Including Mass Transfer Effects T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313102658; 6166340 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Breault, Ronald AU - Nicoletti, Phil Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Mass transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313102658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Gasifier+Performance+Modeling+Including+Mass+Transfer+Effects&rft.au=Breault%2C+Ronald%3BNicoletti%2C+Phil&rft.aulast=Breault&rft.aufirst=Ronald&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Selective Electrocatalytic Activity of Ligand-Stabilized Copper Oxide Nanoparticles for CO2 Reduction and Methanol Oxidation T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313102540; 6166230 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Kauffman, Douglas AU - Kail, Brian AU - Ohodnicki Jr, Paul AU - Matranga, Christopher Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Copper KW - Oxidation KW - Carbon dioxide KW - oxides KW - Methanol KW - nanoparticles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313102540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Selective+Electrocatalytic+Activity+of+Ligand-Stabilized+Copper+Oxide+Nanoparticles+for+CO2+Reduction+and+Methanol+Oxidation&rft.au=Kauffman%2C+Douglas%3BKail%2C+Brian%3BOhodnicki+Jr%2C+Paul%3BMatranga%2C+Christopher&rft.aulast=Kauffman&rft.aufirst=Douglas&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - On the Relationship Between Mechanical Specific Energy and Rate of Penetration T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313101884; 6167423 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Lin, Jeen-Shang AU - Zhou, Yaneng AU - Gamwo, Isaac Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313101884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=On+the+Relationship+Between+Mechanical+Specific+Energy+and+Rate+of+Penetration&rft.au=Lin%2C+Jeen-Shang%3BZhou%2C+Yaneng%3BGamwo%2C+Isaac&rft.aulast=Lin&rft.aufirst=Jeen-Shang&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Overview on Mercury Control Options for Coal-Burning Power Plants T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313101665; 6165938 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Granite, Evan AU - Pennline, Henry Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Mercury KW - Power plants KW - Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313101665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Overview+on+Mercury+Control+Options+for+Coal-Burning+Power+Plants&rft.au=Granite%2C+Evan%3BPennline%2C+Henry&rft.aulast=Granite&rft.aufirst=Evan&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - The Importance of Transport Processes in Silica-Supported, Polyethyleneimine-Impregnated CO2 Sorbents T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313101008; 6168180 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Mebane, David AU - Storlie, Curtis AU - Moore, Leslie AU - Bhat, K AU - Kress, Joel AU - Fauth, Daniel AU - Gray, McMahan Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Transport processes KW - Sorbents KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313101008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=The+Importance+of+Transport+Processes+in+Silica-Supported%2C+Polyethyleneimine-Impregnated+CO2+Sorbents&rft.au=Mebane%2C+David%3BStorlie%2C+Curtis%3BMoore%2C+Leslie%3BBhat%2C+K%3BKress%2C+Joel%3BFauth%2C+Daniel%3BGray%2C+McMahan&rft.aulast=Mebane&rft.aufirst=David&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Direct Versus Hydrogen Assisted CO Dissociation On Metal Surfaces T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313099465; 6167440 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Alfonso, Dominic Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Hydrogen KW - Heavy metals KW - Dissociation KW - Carbon monoxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313099465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Direct+Versus+Hydrogen+Assisted+CO+Dissociation+On+Metal+Surfaces&rft.au=Alfonso%2C+Dominic&rft.aulast=Alfonso&rft.aufirst=Dominic&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Proposed Baselines and Standard Methods for Systems Analyses of Power Generation Technologies T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313092040; 6168784 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Matuszewski, Michael Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Electric power generation KW - Systems analysis KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313092040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Proposed+Baselines+and+Standard+Methods+for+Systems+Analyses+of+Power+Generation+Technologies&rft.au=Matuszewski%2C+Michael&rft.aulast=Matuszewski&rft.aufirst=Michael&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Discrete Modeling of Void Porosity in Rock Cutting T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313091705; 6168776 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Lin, Jeen-Shang AU - Mendoza, Jorge AU - Gamwo, Isaac Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Cuttings KW - Porosity KW - Voids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313091705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Discrete+Modeling+of+Void+Porosity+in+Rock+Cutting&rft.au=Lin%2C+Jeen-Shang%3BMendoza%2C+Jorge%3BGamwo%2C+Isaac&rft.aulast=Lin&rft.aufirst=Jeen-Shang&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Understanding the Stability of Mixed Hydrates Containing Propane, Ethane, and Methane Under Deep Water Conditions T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313090864; 6168803 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Velaga, Srinath AU - Anderson, Brian Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Ethane KW - Methane KW - Deep water KW - hydrates KW - Hydrates KW - Propane UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313090864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Understanding+the+Stability+of+Mixed+Hydrates+Containing+Propane%2C+Ethane%2C+and+Methane+Under+Deep+Water+Conditions&rft.au=Velaga%2C+Srinath%3BAnderson%2C+Brian&rft.aulast=Velaga&rft.aufirst=Srinath&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Pore Scale CO2 Displacement in Sandstone with Comparison to Core Scale Dynamics T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313082780; 6170246 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Crandall, Dustin AU - Warzinski, Robert AU - O'Connor, William AU - Kabir, Aslam AU - Bromhal, Grant Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - sandstone KW - Carbon dioxide KW - Pores UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313082780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Pore+Scale+CO2+Displacement+in+Sandstone+with+Comparison+to+Core+Scale+Dynamics&rft.au=Crandall%2C+Dustin%3BWarzinski%2C+Robert%3BO%27Connor%2C+William%3BKabir%2C+Aslam%3BBromhal%2C+Grant&rft.aulast=Crandall&rft.aufirst=Dustin&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Results of Latest U.S. Department of Energy Funded Chemical Enhanced Oil Recovery Projects T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313081906; 6167426 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Jikich, Sinisha Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - USA KW - Oil recovery KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313081906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Results+of+Latest+U.S.+Department+of+Energy+Funded+Chemical+Enhanced+Oil+Recovery+Projects&rft.au=Jikich%2C+Sinisha&rft.aulast=Jikich&rft.aufirst=Sinisha&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Development of Reaxff Force Field for Carbon Dioxide Capture with Ionic Liquids: A Combined First Principles and Classical Simulation T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313081419; 6168148 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Zhang, Bo AU - van Duin, Adri AU - Johnson, Karl Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Simulation KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313081419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Development+of+Reaxff+Force+Field+for+Carbon+Dioxide+Capture+with+Ionic+Liquids%3A+A+Combined+First+Principles+and+Classical+Simulation&rft.au=Zhang%2C+Bo%3Bvan+Duin%2C+Adri%3BJohnson%2C+Karl&rft.aulast=Zhang&rft.aufirst=Bo&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Reducible Supports for Nickel-Based Oxygen Carriers in Chemical Looping Combustion T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313081080; 6166264 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Bhavsar, Saurabh AU - Veser, Gotz Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Combustion KW - Oxygen UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313081080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=British+Journal+of+Health+Psychology&rft.atitle=Stress+exposure+and+psychological+stress+responses+are+related+to+glucose+concentrations+during+pregnancy&rft.au=Horsch%2C+Antje%3BKang%2C+Ji+Seon%3BVial%2C+Yvan%3BEhlert%2C+Ulrike%3BBorghini%2C+Ayala%3BMarques%E2%80%90Vidal%2C+Pedro%3BJacobs%2C+Ingo%3BPuder%2C+Jardena+J.&rft.aulast=Horsch&rft.aufirst=Antje&rft.date=2016-09-01&rft.volume=21&rft.issue=3&rft.spage=712&rft.isbn=&rft.btitle=&rft.title=British+Journal+of+Health+Psychology&rft.issn=1359107X&rft_id=info:doi/10.1111%2Fbjhp.12197 L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - NETL CO2 Injection and Storage Cost Model T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313080122; 6168787 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Grant, Tim AU - Morgan, Dave AU - Valenstein, Jason AU - Poe, Andrea AU - Milan, Marta AU - Lawrence, Richard Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Storage KW - Carbon dioxide KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313080122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=NETL+CO2+Injection+and+Storage+Cost+Model&rft.au=Grant%2C+Tim%3BMorgan%2C+Dave%3BValenstein%2C+Jason%3BPoe%2C+Andrea%3BMilan%2C+Marta%3BLawrence%2C+Richard&rft.aulast=Grant&rft.aufirst=Tim&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Techno-Economic Evaluation of Chemical Looping Combustion for Industrial-Scale Applications T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313077449; 6170108 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Ramsey, John AU - Gallagher Jr, Michael AU - Carpenter, Stephen AU - Richards, George Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Combustion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313077449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Techno-Economic+Evaluation+of+Chemical+Looping+Combustion+for+Industrial-Scale+Applications&rft.au=Ramsey%2C+John%3BGallagher+Jr%2C+Michael%3BCarpenter%2C+Stephen%3BRichards%2C+George&rft.aulast=Ramsey&rft.aufirst=John&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Double Perovskite Materials for Applications in Chemical Looping and Oxygen Storage T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313077293; 6170102 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Lekse, Jonathan AU - Natesakhawat, Sittichai AU - Baltrus, John AU - Matranga, Christopher Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Oxygen KW - Storage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313077293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Double+Perovskite+Materials+for+Applications+in+Chemical+Looping+and+Oxygen+Storage&rft.au=Lekse%2C+Jonathan%3BNatesakhawat%2C+Sittichai%3BBaltrus%2C+John%3BMatranga%2C+Christopher&rft.aulast=Lekse&rft.aufirst=Jonathan&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Heat Transfer Characteristics of a Nanofluid within a Heated Lid-Driven Cavity Using Multiscale Modeling Techniques T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313075595; 6170502 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Shelton, John AU - Higgs III, C. Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Heat transfer KW - Cavities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313075595?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Heat+Transfer+Characteristics+of+a+Nanofluid+within+a+Heated+Lid-Driven+Cavity+Using+Multiscale+Modeling+Techniques&rft.au=Shelton%2C+John%3BHiggs+III%2C+C.&rft.aulast=Shelton&rft.aufirst=John&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - C2U Performance Modeling for CO2 Adsorption T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313074283; 6169418 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Breault, Ronald AU - Huckaby, E AU - Shadle, Lawrence AU - Spenik, James AU - Monazam, Esmail Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Adsorption KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313074283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=C2U+Performance+Modeling+for+CO2+Adsorption&rft.au=Breault%2C+Ronald%3BHuckaby%2C+E%3BShadle%2C+Lawrence%3BSpenik%2C+James%3BMonazam%2C+Esmail&rft.aulast=Breault&rft.aufirst=Ronald&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Hydrogen and Methane Rich Syngas From a Catalytic Coal Gasifier with in Situ Capture of H2S/CO2 and Ex Situ Regeneration of Catalysts T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313073510; 6168546 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Siefert, Nicholas AU - Shekhawat, Dushyant AU - Litster, Shawn AU - Berry, David Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Coal KW - Methane KW - Catalysts KW - Hydrogen sulfide KW - Regeneration KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313073510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Hydrogen+and+Methane+Rich+Syngas+From+a+Catalytic+Coal+Gasifier+with+in+Situ+Capture+of+H2S%2FCO2+and+Ex+Situ+Regeneration+of+Catalysts&rft.au=Siefert%2C+Nicholas%3BShekhawat%2C+Dushyant%3BLitster%2C+Shawn%3BBerry%2C+David&rft.aulast=Siefert&rft.aufirst=Nicholas&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - A Re-Indexing Method for Performance Improvement of Gas-Solids Flow Simulations T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313069238; 6167892 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Dietiker, Jean-Francois Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Simulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313069238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=A+Re-Indexing+Method+for+Performance+Improvement+of+Gas-Solids+Flow+Simulations&rft.au=Dietiker%2C+Jean-Francois&rft.aulast=Dietiker&rft.aufirst=Jean-Francois&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Atomically Precise, Ligand-Stabilized Au25(SR)25 Nanocatalysts for Highly Efficient Electrochemical CO2 Reduction T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313068511; 6166662 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Kauffman, Douglas AU - Alfonso, Dominic AU - Matranga, Christopher AU - Qian, Huifeng AU - Jin, Rongchao Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Electrochemistry KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313068511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Atomically+Precise%2C+Ligand-Stabilized+Au25%28SR%2925+Nanocatalysts+for+Highly+Efficient+Electrochemical+CO2+Reduction&rft.au=Kauffman%2C+Douglas%3BAlfonso%2C+Dominic%3BMatranga%2C+Christopher%3BQian%2C+Huifeng%3BJin%2C+Rongchao&rft.aulast=Kauffman&rft.aufirst=Douglas&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Oxy-Fuel Combustion Optical Flame Analysis and Characterization T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313063121; 6166371 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Carney, Casey AU - Woodside, Rigel AU - Oryshchyn, Danylo AU - Gerdemann, Stephen AU - Ochs, Thomas Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Combustion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313063121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Oxy-Fuel+Combustion+Optical+Flame+Analysis+and+Characterization&rft.au=Carney%2C+Casey%3BWoodside%2C+Rigel%3BOryshchyn%2C+Danylo%3BGerdemann%2C+Stephen%3BOchs%2C+Thomas&rft.aulast=Carney&rft.aufirst=Casey&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - On the Effect of Sample Area in Particle Velocity Measurements in Circulating Fluidized Bed Risers T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313043722; 6167729 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Gopalan, Balaji AU - Shaffer, Franklin Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Fluidized beds KW - Particulates KW - Velocity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313043722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=On+the+Effect+of+Sample+Area+in+Particle+Velocity+Measurements+in+Circulating+Fluidized+Bed+Risers&rft.au=Gopalan%2C+Balaji%3BShaffer%2C+Franklin&rft.aulast=Gopalan&rft.aufirst=Balaji&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Chemical Looping - A Novel Process for Partial Oxidation of Methane T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313042826; 6167027 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Bhavsar, Saurabh AU - Nadeau, Kenneth AU - Veser, Gotz Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Methane KW - Oxidation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313042826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Chemical+Looping+-+A+Novel+Process+for+Partial+Oxidation+of+Methane&rft.au=Bhavsar%2C+Saurabh%3BNadeau%2C+Kenneth%3BVeser%2C+Gotz&rft.aulast=Bhavsar&rft.aufirst=Saurabh&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Integrating the Carbon Capture Materials Database with the Process Simulation Tools of the Carbon Capture Simulation Initiative T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313034953; 6170516 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Kim, Hosoo AU - Haranczyk, Maciej AU - Epperly, Tom AU - Abouelnasr, Mahmoud AU - Swisher, Joseph AU - Jariwala, Kuldeep AU - Mebane, David AU - Smit, Berend AU - Kress, Joel AU - Miller, David Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Simulation KW - Carbon KW - Databases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313034953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Integrating+the+Carbon+Capture+Materials+Database+with+the+Process+Simulation+Tools+of+the+Carbon+Capture+Simulation+Initiative&rft.au=Kim%2C+Hosoo%3BHaranczyk%2C+Maciej%3BEpperly%2C+Tom%3BAbouelnasr%2C+Mahmoud%3BSwisher%2C+Joseph%3BJariwala%2C+Kuldeep%3BMebane%2C+David%3BSmit%2C+Berend%3BKress%2C+Joel%3BMiller%2C+David&rft.aulast=Kim&rft.aufirst=Hosoo&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Accelerating Progress Toward Operational Excellence of Fossil Energy Plants with CO2 Capture T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313034762; 6170231 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Zitney, Stephen AU - Liese, Eric AU - Mahapatra, Priyadarshi AU - Turton, Richard AU - Bhattacharyya, Debangsu Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Carbon dioxide KW - Energy KW - Fossils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313034762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Accelerating+Progress+Toward+Operational+Excellence+of+Fossil+Energy+Plants+with+CO2+Capture&rft.au=Zitney%2C+Stephen%3BLiese%2C+Eric%3BMahapatra%2C+Priyadarshi%3BTurton%2C+Richard%3BBhattacharyya%2C+Debangsu&rft.aulast=Zitney&rft.aufirst=Stephen&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - An Energy Efficient Process for CO2 Separation From Pre-Combustion Fuel Gas Using Mg(OH)2 Sorbent T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313033037; 6169424 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Fisher II, James AU - Siriwardane, Ranjani AU - Stevens Jr, Robert Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Fuels KW - Sorbents KW - Carbon dioxide KW - Energy efficiency UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313033037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=An+Energy+Efficient+Process+for+CO2+Separation+From+Pre-Combustion+Fuel+Gas+Using+Mg%28OH%292+Sorbent&rft.au=Fisher+II%2C+James%3BSiriwardane%2C+Ranjani%3BStevens+Jr%2C+Robert&rft.aulast=Fisher+II&rft.aufirst=James&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Molecular Modeling of Gases Absorption in 1-n-Hexyl-3-Methylimidazolium Bis(trifluoromethylsulfonyl)Imide ([hmim][Tf2N]) Confined in Silica Slit Pores T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313032394; 6169723 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Shi, Wei Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Gases KW - Silica KW - Absorption KW - Molecular modelling KW - Pores UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313032394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Molecular+Modeling+of+Gases+Absorption+in+1-n-Hexyl-3-Methylimidazolium+Bis%28trifluoromethylsulfonyl%29Imide+%28%5Bhmim%5D%5BTf2N%5D%29+Confined+in+Silica+Slit+Pores&rft.au=Shi%2C+Wei&rft.aulast=Shi&rft.aufirst=Wei&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Poisoning of a Silica Supported Cobalt Catalyst Due to the Presence of Sulfur Impurities in Syngas During Fischer-Tropsch Synthesis: Effect of Chelating Agent T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313029518; 6170361 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Bambal, Ashish AU - Gardner, Todd AU - Kugler, Edwin AU - Dadyburjor, Dady Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Catalysts KW - Silica KW - Cobalt KW - Sulfur KW - Poisoning KW - Chelating agents KW - Impurities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313029518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Poisoning+of+a+Silica+Supported+Cobalt+Catalyst+Due+to+the+Presence+of+Sulfur+Impurities+in+Syngas+During+Fischer-Tropsch+Synthesis%3A+Effect+of+Chelating+Agent&rft.au=Bambal%2C+Ashish%3BGardner%2C+Todd%3BKugler%2C+Edwin%3BDadyburjor%2C+Dady&rft.aulast=Bambal&rft.aufirst=Ashish&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Reactor Design for Diesel Reforming Using a Graded-Composition Monolith T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313021418; 6169575 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Smith, Mark AU - Berry, David AU - Shekhawat, Dushyant AU - Haynes, Daniel AU - Spivey, James AU - Zondlo, John Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Diesel UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313021418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=British+Journal+of+Health+Psychology&rft.atitle=Is+pregnancy+a+teachable+moment+for+diet+and+physical+activity+behaviour+change%3F+An+interpretative+phenomenological+analysis+of+the+experiences+of+women+during+their+first+pregnancy&rft.au=Atkinson%2C+Lou%3BShaw%2C+Rachel+L.%3BFrench%2C+David+P.&rft.aulast=Atkinson&rft.aufirst=Lou&rft.date=2016-11-01&rft.volume=21&rft.issue=4&rft.spage=842&rft.isbn=&rft.btitle=&rft.title=British+Journal+of+Health+Psychology&rft.issn=1359107X&rft_id=info:doi/10.1111%2Fbjhp.12200 L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Diesel Reforming Over Pyrochlore-Based Monolith T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313021236; 6169572 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Haynes, Daniel AU - Berry, David AU - Shekhawat, Dushyant AU - Smith, Mark AU - Seabaugh, Matthew AU - Long, Richard AU - Spivey, James Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Diesel UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313021236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Diesel+Reforming+Over+Pyrochlore-Based+Monolith&rft.au=Haynes%2C+Daniel%3BBerry%2C+David%3BShekhawat%2C+Dushyant%3BSmith%2C+Mark%3BSeabaugh%2C+Matthew%3BLong%2C+Richard%3BSpivey%2C+James&rft.aulast=Haynes&rft.aufirst=Daniel&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Alkali Promoted Iron Oxide Oxygen Carriers for Chemical Looping Combustion of Coal and Methane for Efficient Energy Production with Controlled CO2 Emissions T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313020362; 6166267 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Fisher II, James AU - Siriwardane, Ranjani Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Coal KW - Methane KW - Combustion KW - Oxygen KW - Iron oxides KW - Emissions KW - Carbon dioxide KW - iron oxides KW - Alkalis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313020362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Alkali+Promoted+Iron+Oxide+Oxygen+Carriers+for+Chemical+Looping+Combustion+of+Coal+and+Methane+for+Efficient+Energy+Production+with+Controlled+CO2+Emissions&rft.au=Fisher+II%2C+James%3BSiriwardane%2C+Ranjani&rft.aulast=Fisher+II&rft.aufirst=James&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Evaluating the Viability of CO2 Mineralization Via Reaction of Caustic Waste Materials T2 - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AN - 1313006825; 6169037 JF - 2012 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2012) AU - Dilmore, Robert AU - Allen, D AU - Hedges, S AU - Soong, Yee Y1 - 2012/10/28/ PY - 2012 DA - 2012 Oct 28 KW - Mineralization KW - Carbon dioxide KW - Wastes KW - Caustics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313006825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.atitle=Evaluating+the+Viability+of+CO2+Mineralization+Via+Reaction+of+Caustic+Waste+Materials&rft.au=Dilmore%2C+Robert%3BAllen%2C+D%3BHedges%2C+S%3BSoong%2C+Yee&rft.aulast=Dilmore&rft.aufirst=Robert&rft.date=2012-10-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2012%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2012/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - NETL CO (sub 2) injection and storage cost model AN - 1696875286; 2015-066919 JF - Abstracts - AAPG, Eastern Section Meeting AU - Grant, Tim AU - Morgan, Dave AU - Valenstein, Jason AU - Milan, Marta AU - Poe, Andrea AU - Lawrence, Richard AU - MacKenzie, Pete AU - Zody, Steve Y1 - 2012/09// PY - 2012 DA - September 2012 PB - American Association of Petroleum Geologists. Eastern Section, [varies] VL - 41 KW - carbon sequestration KW - regulations KW - petroleum KW - gas storage KW - enhanced recovery KW - transportation KW - cost KW - pipelines KW - reservoir rocks KW - carbon dioxide KW - models KW - fluid injection KW - economics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.atitle=NETL+CO+%28sub+2%29+injection+and+storage+cost+model&rft.au=Grant%2C+Tim%3BMorgan%2C+Dave%3BValenstein%2C+Jason%3BMilan%2C+Marta%3BPoe%2C+Andrea%3BLawrence%2C+Richard%3BMacKenzie%2C+Pete%3BZody%2C+Steve&rft.aulast=Grant&rft.aufirst=Tim&rft.date=2012-09-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2012/90154eastern/abstracts/grant.htm LA - English DB - GeoRef N1 - Conference title - AAPG 41st annual Eastern Section meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2016-09-16 N1 - CODEN - #06714 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; cost; economics; enhanced recovery; fluid injection; gas storage; models; petroleum; pipelines; regulations; reservoir rocks; transportation ER - TY - JOUR T1 - Prospectivity analysis of rare earth element content of selected coal deposits AN - 1696875278; 2015-066914 JF - Abstracts - AAPG, Eastern Section Meeting AU - Ekmann, J M AU - Noceti, Richard AU - Lopert, Eric AU - Hartwell, Bradley AU - Skone, Timothy AU - MacKenzie, Pete AU - Zody, Steve Y1 - 2012/09// PY - 2012 DA - September 2012 PB - American Association of Petroleum Geologists. Eastern Section, [varies] VL - 41 KW - United States KW - mineral exploration KW - mines KW - concentration KW - mine waste KW - development KW - coal mines KW - research KW - production KW - ash KW - potential deposits KW - volcanism KW - metals KW - metal ores KW - economics KW - rare earths KW - coal deposits KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.atitle=Prospectivity+analysis+of+rare+earth+element+content+of+selected+coal+deposits&rft.au=Ekmann%2C+J+M%3BNoceti%2C+Richard%3BLopert%2C+Eric%3BHartwell%2C+Bradley%3BSkone%2C+Timothy%3BMacKenzie%2C+Pete%3BZody%2C+Steve&rft.aulast=Ekmann&rft.aufirst=J&rft.date=2012-09-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2012/90154eastern/abstracts/ekma.htm LA - English DB - GeoRef N1 - Conference title - AAPG 41st annual Eastern Section meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2016-09-16 N1 - CODEN - #06714 N1 - SubjectsTermNotLitGenreText - ash; coal deposits; coal mines; concentration; development; economics; metal ores; metals; mine waste; mineral exploration; mines; potential deposits; production; rare earths; research; United States; volcanism ER - TY - JOUR T1 - Characterization of the Marcellus Shale in the Appalachian Basin AN - 1696874199; 2015-066958 JF - Abstracts - AAPG, Eastern Section Meeting AU - Mroz, Thomas H AU - Crandall, Dustin AU - Tucker, Yael AU - McIntyre, Dustin AU - MacKenzie, Pete AU - Zody, Steve Y1 - 2012/09// PY - 2012 DA - September 2012 PB - American Association of Petroleum Geologists. Eastern Section, [varies] VL - 41 KW - North America KW - well stimulation KW - Paleozoic KW - natural gas KW - source rocks KW - data processing KW - Appalachians KW - petroleum KW - gas shale KW - Appalachian Plateau KW - distribution KW - reservoir rocks KW - models KW - fractures KW - physical properties KW - sedimentary rocks KW - Middle Devonian KW - Devonian KW - Appalachian Basin KW - Marcellus Shale KW - data bases KW - reservoir properties KW - geochemistry KW - 06A:Sedimentary petrology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696874199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.atitle=Characterization+of+the+Marcellus+Shale+in+the+Appalachian+Basin&rft.au=Mroz%2C+Thomas+H%3BCrandall%2C+Dustin%3BTucker%2C+Yael%3BMcIntyre%2C+Dustin%3BMacKenzie%2C+Pete%3BZody%2C+Steve&rft.aulast=Mroz&rft.aufirst=Thomas&rft.date=2012-09-01&rft.volume=17&rft.issue=3&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Journal+of+Addictive+Diseases&rft.issn=10550887&rft_id=info:doi/10.1300%2FJ069v17n03_08 L2 - http://www.searchanddiscovery.com/abstracts/html/2012/90154eastern/abstracts/mroz.htm LA - English DB - GeoRef N1 - Conference title - AAPG 41st annual Eastern Section meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2016-09-16 N1 - CODEN - #06714 N1 - SubjectsTermNotLitGenreText - Appalachian Basin; Appalachian Plateau; Appalachians; data bases; data processing; Devonian; distribution; fractures; gas shale; geochemistry; Marcellus Shale; Middle Devonian; models; natural gas; North America; Paleozoic; petroleum; physical properties; reservoir properties; reservoir rocks; sedimentary rocks; source rocks; well stimulation ER - TY - JOUR T1 - Thermal regime of a cold air trap in central Pennsylvania, USA; the Trough Creek ice mine AN - 1312836454; 2013-022928 AB - Air temperatures internal and external to a talus cave ("ice mine") in central Pennsylvania were measured hourly for three years. Despite its location near the base of a talus slope, the cave demonstrated the thermal characteristics of an apparently static cave, with limited connections to the external environment other than through the cave entrance. Congelation ice that lasted until late spring formed as drip or flowstone and ponded ice from the limited influx of infiltrating water during late winter/early spring. A closed period of thermal stratification and slow warming of cave air was followed by an open period in winter months during which the cave was cooled by the influx of cold dry air. Unlike the occasionally strong and localised cooling induced by the flow of cold air from vents at the base of talus slopes, static cold traps retain their cold air and have little apparent effect on surrounding biota, instead providing potential refugia for organisms that prefer colder temperatures. Published 2012. This article is a U.S. Government work and is in the public domain in the USA. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Permafrost and Periglacial Processes AU - Edenborn, Harry M AU - Sams, James I AU - Kite, J Steven Y1 - 2012/09// PY - 2012 DA - September 2012 SP - 187 EP - 195 PB - Wiley, Oxford VL - 23 IS - 3 SN - 1045-6740, 1045-6740 KW - United States KW - soils KW - North America KW - talus slopes KW - permafrost KW - Trogh Creek ice mine KW - central Pennsylvania KW - Appalachians KW - anomalies KW - erosion features KW - Appalachian Plateau KW - thermal regime KW - biota KW - temperature KW - Huntingdon County Pennsylvania KW - ice KW - ground ice KW - ecology KW - air KW - Pennsylvania KW - frozen ground KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312836454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Permafrost+and+Periglacial+Processes&rft.atitle=Thermal+regime+of+a+cold+air+trap+in+central+Pennsylvania%2C+USA%3B+the+Trough+Creek+ice+mine&rft.au=Edenborn%2C+Harry+M%3BSams%2C+James+I%3BKite%2C+J+Steven&rft.aulast=Edenborn&rft.aufirst=Harry&rft.date=2012-09-01&rft.volume=23&rft.issue=3&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Permafrost+and+Periglacial+Processes&rft.issn=10456740&rft_id=info:doi/10.1002%2Fppp.1742 L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/14053/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2013-02-28 N1 - SubjectsTermNotLitGenreText - air; anomalies; Appalachian Plateau; Appalachians; biota; central Pennsylvania; ecology; erosion features; frozen ground; ground ice; Huntingdon County Pennsylvania; ice; North America; Pennsylvania; permafrost; soils; talus slopes; temperature; thermal regime; Trogh Creek ice mine; United States DO - http://dx.doi.org/10.1002/ppp.1742 ER - TY - JOUR T1 - Comparative analysis of carbon dioxide storage resource assessment methodologies AN - 1220564578; 2013-002122 AB - Today, an increased emphasis on the distribution, potential volume, and cost to develop CO (sub 2) geologic sequestration resources exists. In the presence of climate change, the need to make accurate and clearly understandable assessments of carbon sequestration potential, which can be used by the government and industry to plan for technology deployment, has never been greater. We compare three CO (sub 2) storage assessment methodologies: the approach applied by the U.S. Department of Energy in its Carbon Atlas III, the modified U.S. Geological Survey methodology, and the CO (sub 2) Geological Storage Solutions methodology. All three methodologies address storage resources in porous geologic media in sedimentary basins, namely oil and gas reservoirs and saline formations. Based on our analyses, these methodologies are similar in terms of computational formulation. We find that each of the proposed methodologies is science and engineering based. As such, they are important in identifying the geographical distribution of CO (sub 2) storage resource and regional carbon sequestration potential at the national and basin-scale levels for use in energy-related government policy and business decisions. Policy makers need these high-level estimates to evaluate the prospective function that carbon capture and sequestration technologies can play in reducing CO (sub 2) emissions over the long term. The value of these high-level assessments of CO (sub 2) storage resource is to help inform decision makers in governments and industry as to whether carbon capture and sequestration is a climate mitigation option worth pursuing in particular regions. JF - Environmental Geosciences AU - Popova, Olga H AU - Small, Mitchell J AU - McCoy, Sean T AU - Thomas, A C AU - Karimi, Bobak AU - Goodman, Angela AU - Carter, Kristin M Y1 - 2012/09// PY - 2012 DA - September 2012 SP - 105 EP - 124 PB - American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Tulsa, OK VL - 19 IS - 3 SN - 1075-9565, 1075-9565 KW - United States KW - methods KW - technology KW - sedimentary basins KW - mechanism KW - storage coefficient KW - climate change KW - reservoir rocks KW - carbon dioxide KW - waste management KW - basins KW - Oriskany Sandstone KW - saline composition KW - Ohio KW - carbon sequestration KW - Paleozoic KW - Monte Carlo analysis KW - statistical analysis KW - injection KW - porous materials KW - migration of elements KW - Lower Devonian KW - Devonian KW - brines KW - traps KW - reservoir properties KW - greenhouse gases KW - waste disposal KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1220564578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geosciences&rft.atitle=Comparative+analysis+of+carbon+dioxide+storage+resource+assessment+methodologies&rft.au=Popova%2C+Olga+H%3BSmall%2C+Mitchell+J%3BMcCoy%2C+Sean+T%3BThomas%2C+A+C%3BKarimi%2C+Bobak%3BGoodman%2C+Angela%3BCarter%2C+Kristin+M&rft.aulast=Popova&rft.aufirst=Olga&rft.date=2012-09-01&rft.volume=19&rft.issue=3&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Environmental+Geosciences&rft.issn=10759565&rft_id=info:doi/10.1306%2Feg.06011212002 L2 - http://www.ingentaconnect.com/content/bsc/ege LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 48 N1 - PubXState - OK N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-11-29 N1 - SubjectsTermNotLitGenreText - basins; brines; carbon dioxide; carbon sequestration; climate change; Devonian; greenhouse gases; injection; Lower Devonian; mechanism; methods; migration of elements; Monte Carlo analysis; Ohio; Oriskany Sandstone; Paleozoic; permeability; porous materials; reservoir properties; reservoir rocks; saline composition; sedimentary basins; statistical analysis; storage coefficient; technology; traps; United States; waste disposal; waste management DO - http://dx.doi.org/10.1306/eg.06011212002 ER - TY - JOUR T1 - Molten catalytic coal gasification with in situcarbon and sulphur capture AN - 1701038510; 17094433 AB - A molten catalytic process has been demonstrated for converting coal into a synthesis gas consisting of roughly 20% methane and 80% hydrogen using alkali hydroxides as both catalysts and in situCO sub(2) capture agents. Baselines studies were also conducted using no catalyst, weak capture agents (CaSiO sub(3)) and strong in situcapture agent for acid gases (CaO). While a similar gas composition can be achieved using CaO rather than alkali hydroxides, the rate of syngas production is greater when using molten alkali hydroxides than when using CaO as the in situcapture agent for acid gases, such as HCl, H sub(2)S and CO sub(2). Parametric studies were conducted to understand the effects of temperature, pressure, catalyst composition, steam flow rate and the ratio of coal to alkali hydroxide on the performance of the molten catalytic gasifier in terms of kinetics and syngas composition. To measure the amount and the rate of coal conversion, we have developed a method for quantifying the coal conversion as the reduction charge remaining, which is related to the chemical oxygen demand remaining in the coal. At temperatures between 800 degree C and 900 degree C, we measured first-order steam-coal gasification rates using sub-bituminous coal of 2 h super(-1) in a fixed bed reactor while capturing significant quantities of both H sub(2)S and CO sub(2), and while also generating 20% methane plus ethane in the syngas on a dry volume basis. JF - Energy & Environmental Science AU - Siefert, Nicholas AU - Shekhawat, Dushyant AU - Litster, Shawn AU - Berry, David AD - National Energy Technology Laboratory; US Dept of Energy; Pittsburgh; PA; USA; +1 (412) 386-4404 nicholas.siefert@netl.doe.gov Y1 - 2012/08// PY - 2012 DA - Aug 2012 SP - 8660 EP - 8672 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 5 IS - 9 SN - 1754-5692, 1754-5692 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA) KW - Methane KW - Gasification KW - Coal KW - Catalysts KW - Hydroxides KW - Carbon dioxide KW - Composition effects KW - Catalysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1701038510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=Molten+catalytic+coal+gasification+with+in+situcarbon+and+sulphur+capture&rft.au=Siefert%2C+Nicholas%3BShekhawat%2C+Dushyant%3BLitster%2C+Shawn%3BBerry%2C+David&rft.aulast=Siefert&rft.aufirst=Nicholas&rft.date=2012-08-01&rft.volume=5&rft.issue=9&rft.spage=8660&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=17545692&rft_id=info:doi/10.1039%2Fc2ee21989a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Number of references - 37 N1 - Last updated - 2015-08-04 DO - http://dx.doi.org/10.1039/c2ee21989a ER - TY - JOUR T1 - Implications of the Fresnel-zone texture for seismic amplitude interpretation AN - 1039342022; 2012-082385 AB - The 3D reflection seismic response is associated with a zone (the Fresnel zone), rather than with a single point used in the idealized 1D convolution model. Unlike a point of incidence, the Fresnel zone is complicated by its textural characters that are defined by the dip and azimuth of microreflectors in the zone. The Fresnel-zone texture makes seismic amplitude interpretation more complicated than previously documented. A conceptual model suggests that seismic amplitude variations with offset (AVO), azimuth (AVAz), and frequency (spectral decomposition) were physically related to textural roughness, textural anisotropy, and textural scale of the Fresnel zone, respectively. Textural roughness is defined by the dip deviation of microreflectors and contributes to the AVO intercept and gradient. Textural anisotropy is defined by the degree of the preferred orientation of the microreflectors and directly affects the AVAz signature. Textural scale is defined by the spacing of the microreflectors and controls the selective frequency tuning in spectral decomposition data. The Fresnel-zone texture gives rise to amplitude variations that can not be accurately modeled by using a 1D reflectivity-wavelet convolution algorithm, and thus poses challenges to the reliability of many previous predictions of rock properties and thickness from amplitude. The AVO, AVAz, and spectral decomposition data should be used to characterize Fresnel-zone texture for predicting depositional facies, deformational fabrics, and hydraulic properties in the subsurface. JF - Geophysics AU - Gao, Dengliang Y1 - 2012/07// PY - 2012 DA - July 2012 SP - O35 EP - O44 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 77 IS - 4 SN - 0016-8033, 0016-8033 KW - AVO methods KW - technology KW - one-dimensional models KW - geophysical methods KW - elastic waves KW - interpretation KW - Fresnel zones KW - anisotropy KW - seismic methods KW - amplitude KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039342022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Implications+of+the+Fresnel-zone+texture+for+seismic+amplitude+interpretation&rft.au=Gao%2C+Dengliang&rft.aulast=Gao&rft.aufirst=Dengliang&rft.date=2012-07-01&rft.volume=77&rft.issue=4&rft.spage=O35&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2Fgeo2012-0023.1 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - amplitude; anisotropy; AVO methods; elastic waves; Fresnel zones; geophysical methods; interpretation; one-dimensional models; seismic methods; technology DO - http://dx.doi.org/10.1190/geo2012-0023.1 ER - TY - JOUR T1 - Numerical simulations of depressurization-induced gas production from gas hydrate reservoirs at the Walker Ridge 313 Site, northern Gulf of Mexico AN - 1112675586; 2012-089994 AB - In 2009, the Gulf of Mexico (GOM) Gas Hydrates Joint-Industry-Project (JIP) Leg II drilling program confirmed that gas hydrate occurs at high saturations within reservoir-quality sands in the GOM. A comprehensive logging-while-drilling dataset was collected from seven wells at three sites, including two wells at the Walker Ridge 313 site. By constraining the saturations and thicknesses of hydrate-bearing sands using logging-while-drilling data, two-dimensional (2D), cylindrical, r-z and three-dimensional (3D) reservoir models were simulated. The gas hydrate occurrences inferred from seismic analysis are used to delineate the areal extent of the 3D reservoir models. Numerical simulations of gas production from the Walker Ridge reservoirs were conducted using the depressurization method at a constant bottomhole pressure. Results of these simulations indicate that these hydrate deposits are readily produced, owing to high intrinsic reservoir-quality and their proximity to the base of hydrate stability. The elevated in situ reservoir temperatures contribute to high (5-40 MMscf/day) predicted production rates. The production rates obtained from the 2D and 3D models are in close agreement. To evaluate the effect of spatial dimensions, the 2D reservoir domains were simulated at two outer radii. The results showed increased potential for formation of secondary hydrate and appearance of lag time for production rates as reservoir size increases. Similar phenomena were observed in the 3D reservoir models. The results also suggest that interbedded gas hydrate accumulations might be preferable targets for gas production in comparison with massive deposits. Hydrate in such accumulations can be readily dissociated due to heat supply from surrounding hydrate-free zones. Special cases were considered to evaluate the effect of overburden and underburden permeability on production. The obtained data show that production can be significantly degraded in comparison with a case using impermeable boundaries. The main reason for the reduced productivity is water influx from the surrounding strata; a secondary cause is gas escape into the overburden. The results dictate that in order to reliably estimate production potential, permeability of the surroundings has to be included in a model. Abstract Copyright (2012) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Myshakin, Evgeniy M AU - Gaddipati, Manohar AU - Rose, Kelly AU - Anderson, Brian J Y1 - 2012/06// PY - 2012 DA - June 2012 SP - 169 EP - 185 PB - Elsevier, Oxford VL - 34 IS - 1 SN - 0264-8172, 0264-8172 KW - petroleum exploration KW - numerical models KW - gas hydrates KW - three-dimensional models KW - natural gas KW - petroleum KW - production KW - Gulf of Mexico KW - two-dimensional models KW - marine sediments KW - digital simulation KW - sediments KW - North Atlantic KW - Walker Ridge KW - northern Gulf of Mexico KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112675586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Numerical+simulations+of+depressurization-induced+gas+production+from+gas+hydrate+reservoirs+at+the+Walker+Ridge+313+Site%2C+northern+Gulf+of+Mexico&rft.au=Myshakin%2C+Evgeniy+M%3BGaddipati%2C+Manohar%3BRose%2C+Kelly%3BAnderson%2C+Brian+J&rft.aulast=Myshakin&rft.aufirst=Evgeniy&rft.date=2012-06-01&rft.volume=34&rft.issue=1&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2011.09.001 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; digital simulation; gas hydrates; Gulf of Mexico; marine sediments; natural gas; North Atlantic; northern Gulf of Mexico; numerical models; petroleum; petroleum exploration; production; sediments; three-dimensional models; two-dimensional models; Walker Ridge DO - http://dx.doi.org/10.1016/j.marpetgeo.2011.09.001 ER - TY - JOUR T1 - Architecture of gas-hydrate-bearing sands from Walker Ridge 313, Green Canyon 955, and Alaminos Canyon 21; northern deepwater Gulf of Mexico AN - 1112675578; 2012-089992 AB - Logging-while-drilling data acquired during the 2009 Gulf of Mexico (GoM) Gas Hydrate Joint Industry Project Leg II program combined with features observed in seismic data allow assessment of the depositional environment, geometry, and internal architecture of gas-hydrate-bearing sand reservoirs from three sites in the northern Gulf of Mexico (GoM): Walker Ridge 313, Alaminos Canyon 21, and Green Canyon 955. The site descriptions assist in the understanding of the geological development of gas-hydrate-bearing sands and in the assessment of their energy production potential. Three sand-rich units are described from the Walker Ridge site, including multiple ponded sand-bodies representing turbidite channel and associated levee and terminal lobe environments within the Terrebonne basin on the lower slope of the GoM. Older units display fewer but greater-reservoir-quality channel and proximal levee facies as compared to thinner, more continuous, and unconfined sheet-like sands that characterize the younger units, suggesting a decrease in depositional gradient with time in the basin. The three wells in the Green Canyon 955 site penetrated proximal levee sands within a previously recognized Late Pleistocene basin floor turbidite-channel-levee complex. Reservoirs encountered in GC955 exhibit thin-bedded internal structure and complex fault compartmentalization. Two wells drilled in the Alaminos Canyon 21 site tested a large, shallow, sand unit within the Diana mini-basin that exhibits steep lateral margins, non-sinuous elongate form, and flat base with hummocky upper surface. These features suggest deposition as a mass-transport deposit consisting of remobilized sand-rich turbidites or as a large basin-floor fan that was potentially eroded and buried by later-stage, mud-prone, mass-transport deposits. Abstract Copyright (2012) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Boswell, Ray AU - Frye, Matthew AU - Shelander, Dianna AU - Shedd, William AU - McConnell, Daniel R AU - Cook, Ann E Y1 - 2012/06// PY - 2012 DA - June 2012 SP - 134 EP - 149 PB - Elsevier, Oxford VL - 34 IS - 1 SN - 0264-8172, 0264-8172 KW - petroleum exploration KW - seismic stratigraphy KW - geophysical surveys KW - gas hydrates KW - natural gas KW - petroleum KW - Gulf of Mexico KW - reservoir rocks KW - vertical seismic profiles KW - marine sediments KW - potential deposits KW - Alaminos Canyon KW - sediments KW - northern Gulf of Mexico KW - seismic profiles KW - well logs KW - Green Canyon KW - geophysical methods KW - seismic methods KW - surveys KW - geophysical profiles KW - North Atlantic KW - Walker Ridge KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112675578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Architecture+of+gas-hydrate-bearing+sands+from+Walker+Ridge+313%2C+Green+Canyon+955%2C+and+Alaminos+Canyon+21%3B+northern+deepwater+Gulf+of+Mexico&rft.au=Boswell%2C+Ray%3BFrye%2C+Matthew%3BShelander%2C+Dianna%3BShedd%2C+William%3BMcConnell%2C+Daniel+R%3BCook%2C+Ann+E&rft.aulast=Boswell&rft.aufirst=Ray&rft.date=2012-06-01&rft.volume=34&rft.issue=1&rft.spage=134&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2011.08.010 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. sects., sketch map N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - Alaminos Canyon; Atlantic Ocean; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Green Canyon; Gulf of Mexico; marine sediments; natural gas; North Atlantic; northern Gulf of Mexico; petroleum; petroleum exploration; potential deposits; reservoir rocks; sediments; seismic methods; seismic profiles; seismic stratigraphy; surveys; vertical seismic profiles; Walker Ridge; well logs DO - http://dx.doi.org/10.1016/j.marpetgeo.2011.08.010 ER - TY - JOUR T1 - Electrical anisotropy of gas hydrate-bearing sand reservoirs in the Gulf of Mexico AN - 1112672044; 2012-089987 AB - We present new results and interpretations of the electrical anisotropy and reservoir architecture in gas hydrate-bearing sands using logging data collected during the Gulf of Mexico Gas Hydrate Joint Industry Project Leg II. We focus specifically on sand reservoirs in Hole Alaminos Canyon 21 A (AC21-A), Hole Green Canyon 955 H (GC955-H) and Hole Walker Ridge 313 H (WR313-H). Using a new logging-while-drilling directional resistivity tool and a one-dimensional inversion developed by Schlumberger, we resolve the resistivity of the current flowing parallel to the bedding, R (sub prallel) and the resistivity of the current flowing perpendicular to the bedding, R (sub perpendicular) . We find the sand reservoir in Hole AC21-A to be relatively isotropic, with R (sub parallel) and R (sub perpendicular) values close to 2Omega m. In contrast, the gas hydrate-bearing sand reservoirs in Holes GC955-H and WR313-H are highly anisotropic. In these reservoirs, R (sub parallel) is between 2 and 30Omega m, and R (sub perpendicular) is generally an order of magnitude higher. Using Schlumberger's WebMI models, we were able to replicate multiple resistivity measurements and determine the formation resistivity the gas hydrate-bearing sand reservoir in Hole WR313-H. The results showed that gas hydrate saturations within a single reservoir unit are highly variable. For example, the sand units in Hole WR313-H contain thin layers (on the order of 10-100 cm) with varying gas hydrate saturations between 15 and 95%. Our combined modeling results clearly indicate that the gas hydrate-bearing sand reservoirs in Holes GC955-H and WR313-H are highly anisotropic due to varying saturations of gas hydrate forming in thin layers within larger sand units. Abstract Copyright (2012) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Cook, Ann E AU - Anderson, Barbara I AU - Rasmus, John AU - Sun, Keli AU - Li, Qiming AU - Collett, Timothy S AU - Goldberg, David S Y1 - 2012/06// PY - 2012 DA - June 2012 SP - 72 EP - 84 PB - Elsevier, Oxford VL - 34 IS - 1 SN - 0264-8172, 0264-8172 KW - petroleum exploration KW - well logs KW - gas hydrates KW - natural gas KW - geophysical methods KW - electrical methods KW - petroleum KW - inverse problem KW - resistivity KW - Gulf of Mexico KW - reservoir rocks KW - models KW - marine sediments KW - boreholes KW - saturation KW - marine drilling KW - sediments KW - drilling KW - North Atlantic KW - northern Gulf of Mexico KW - Atlantic Ocean KW - anisotropy KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112672044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Research+in+Nursing+%26+Health&rft.atitle=The+impact+of+miscarriage+and+parity+on+patterns+of+maternal+distress+in+pregnancy&rft.au=Woods-Giscomb%C3%A9%2C+Cheryl+L.%3BLobel%2C+Marci%3BCrandell%2C+Jamie+L.&rft.aulast=Woods-Giscomb%C3%A9&rft.aufirst=Cheryl&rft.date=2010-08-01&rft.volume=33&rft.issue=4&rft.spage=316&rft.isbn=&rft.btitle=&rft.title=Research+in+Nursing+%26+Health&rft.issn=01606891&rft_id=info:doi/10.1002%2Fnur.20389 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 40 N1 - Document feature - illus. N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - anisotropy; Atlantic Ocean; boreholes; drilling; electrical methods; gas hydrates; geophysical methods; Gulf of Mexico; inverse problem; marine drilling; marine sediments; models; natural gas; North Atlantic; northern Gulf of Mexico; petroleum; petroleum exploration; reservoir rocks; resistivity; saturation; sediments; well logs DO - http://dx.doi.org/10.1016/j.marpetgeo.2011.09.003 ER - TY - JOUR T1 - Subsurface gas hydrates in the northern Gulf of Mexico AN - 1112668592; 2012-089983 AB - The northern Gulf of Mexico (GoM) has long been a focus area for the study of gas hydrates. Throughout the 1980s and 1990s, work focused on massive gas hydrates deposits that were found to form at and near the seafloor in association with hydrocarbon seeps. However, as global scientific and industrial interest in assessment of the drilling hazards and resource implications of gas hydrate accelerated, focus shifted to understanding the nature and abundance of "buried" gas hydrates. Through 2005, despite the drilling of more than 1200 oil and gas industry wells through the gas hydrate stability zone, published evidence of significant sub-seafloor gas hydrate in the GoM was lacking. A 2005 drilling program by the GoM Gas Hydrate Joint Industry Project (the JIP) provided an initial confirmation of the occurrence of gas hydrates below the GoM seafloor. In 2006, release of data from a 2003 industry well in Alaminos Canyon 818 provided initial documentation of gas hydrate occurrence at high concentrations in sand reservoirs in the GoM. From 2006 to 2008, the JIP facilitated the integration of geophysical and geological data to identify sites prospective for gas hydrate-bearing sands, culminating in the recommendation of numerous drilling targets within four sites spanning a range of typical deepwater settings. Concurrent with, but independent of, the JIP prospecting effort, the Bureau of Ocean Energy Management (BOEM) conducted a preliminary assessment of the GoM gas hydrate petroleum system, resulting in an estimate of 607 trillion cubic meters (21,444 trillion cubic feet) gas-in-place of which roughly one-third occurs at expected high concentrations in sand reservoirs. In 2009, the JIP drilled seven wells at three sites, discovering gas hydrate at high saturation in sand reservoirs in four wells and suspected gas hydrate at low to moderate saturations in two other wells. These results provide an initial confirmation of the complex nature and occurrence of gas hydrate-bearing sands in the GoM, the efficacy of the integrated geological/geophysical prospecting approach used to identify the JIP drilling sites, and the relevance of the 2008 BOEM assessment. Abstract Copyright (2012) Elsevier, B.V. JF - Marine and Petroleum Geology AU - Boswell, Ray AU - Collett, Timothy S AU - Frye, Matthew AU - Shedd, William AU - McConnell, Daniel R AU - Shelander, Dianna Y1 - 2012/06// PY - 2012 DA - June 2012 SP - 4 EP - 30 PB - Elsevier, Oxford VL - 34 IS - 1 SN - 0264-8172, 0264-8172 KW - United States KW - petroleum exploration KW - geophysical surveys KW - gas hydrates KW - natural gas KW - aliphatic hydrocarbons KW - petroleum KW - Gulf of Mexico KW - vertical seismic profiles KW - marine sediments KW - sediments KW - Louisiana KW - drilling KW - northern Gulf of Mexico KW - continental margin KW - seismic profiles KW - methane KW - well logs KW - geophysical methods KW - Texas KW - alkanes KW - seismic methods KW - organic compounds KW - boreholes KW - marine drilling KW - hydrocarbons KW - surveys KW - geophysical profiles KW - North Atlantic KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112668592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Subsurface+gas+hydrates+in+the+northern+Gulf+of+Mexico&rft.au=Boswell%2C+Ray%3BCollett%2C+Timothy+S%3BFrye%2C+Matthew%3BShedd%2C+William%3BMcConnell%2C+Daniel+R%3BShelander%2C+Dianna&rft.aulast=Boswell&rft.aufirst=Ray&rft.date=2012-06-01&rft.volume=34&rft.issue=1&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2011.10.003 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 97 N1 - Document feature - illus. incl. sects., 2 tables, sketch maps N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Atlantic Ocean; boreholes; continental margin; drilling; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Gulf of Mexico; hydrocarbons; Louisiana; marine drilling; marine sediments; methane; natural gas; North Atlantic; northern Gulf of Mexico; organic compounds; petroleum; petroleum exploration; sediments; seismic methods; seismic profiles; surveys; Texas; United States; vertical seismic profiles; well logs DO - http://dx.doi.org/10.1016/j.marpetgeo.2011.10.003 ER - TY - JOUR T1 - Review of progress in evaluating gas hydrate drilling hazards AN - 1112668278; 2012-089996 AB - Shallow drilling hazard assessment consists of geological/geophysical review of drill sites to enable the avoidance or effective mitigation of problems that can affect the safe drilling of the "top-hole" section of wells. Primary seafloor hazards include infrastructure, hardgrounds, chemosynthetic communities, and areas of high slope or potential seafloor instability. Shallow subsurface hazards include strata that may contain overpressured water, free gas, or gas hydrate. Among these issues, the potential hazards posed by gas hydrate have historically been the most difficult to quantify and constrain. This paper reviews the history of gas hydrate shallow hazard assessment, much of which has been framed by difficulties in remote detection and quantification of typical low-saturation, mud-hosted hydrate occurrences. Recent drilling results indicate that such accumulations can be safely drilled using existing industry protocols. However, assessment of drilling hazards associated with high saturation, sand-hosted hydrates warrant further investigation, and therefore was a key focus of the Gulf of Mexico Gas Hydrate Joint Industry Project Leg II (JIP Leg II) program conducted in 2009. Pre-drill site hazard assessment for JIP Leg II utilized standard industry methods in which geohazards associated with gas hydrate and free gas were identified in a primarily-qualitative manner using seismic amplitude analysis, seismic stratigraphic interpretation, and geo-pressure analysis. While these methods can reliably detect shallow hydrocarbons, including highly-concentrated gas hydrates, they are not sufficient to determine if free gas may exist below gas hydrate, particularly where they occur in close vertical succession. Such undetected free gas occurrences can pose potential drilling hazards that can be quantitatively assessed using advanced seismic methods. Abstract Copyright (2012) Elsevier, B.V. JF - Marine and Petroleum Geology AU - McConnell, Daniel R AU - Zhang, Zijian AU - Boswell, Ray Y1 - 2012/06// PY - 2012 DA - June 2012 SP - 209 EP - 223 PB - Elsevier, Oxford VL - 34 IS - 1 SN - 0264-8172, 0264-8172 KW - seismic profiles KW - geophysical surveys KW - geologic hazards KW - gas hydrates KW - natural gas KW - geophysical methods KW - petroleum KW - Gulf of Mexico KW - seismic methods KW - vertical seismic profiles KW - marine sediments KW - marine drilling KW - sediments KW - natural hazards KW - surveys KW - risk assessment KW - geophysical profiles KW - drilling KW - North Atlantic KW - northern Gulf of Mexico KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112668278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Review+of+progress+in+evaluating+gas+hydrate+drilling+hazards&rft.au=McConnell%2C+Daniel+R%3BZhang%2C+Zijian%3BBoswell%2C+Ray&rft.aulast=McConnell&rft.aufirst=Daniel&rft.date=2012-06-01&rft.volume=34&rft.issue=1&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2012.02.010 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 104 N1 - Document feature - illus. incl. sects., sketch map N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; drilling; gas hydrates; geologic hazards; geophysical methods; geophysical profiles; geophysical surveys; Gulf of Mexico; marine drilling; marine sediments; natural gas; natural hazards; North Atlantic; northern Gulf of Mexico; petroleum; risk assessment; sediments; seismic methods; seismic profiles; surveys; vertical seismic profiles DO - http://dx.doi.org/10.1016/j.marpetgeo.2012.02.010 ER - TY - JOUR T1 - An intermediate-temperature solid oxide fuel cell with electrospun nanofiber cathode AN - 1560105905; 20523298 AB - Lanthanum strontium cobalt ferrite (LSCF) nanofibers have been fabricated by the electrospinning method and used as the cathode of an intermediate-temperature solid oxide fuel cell (SOFC) with yttria-stabilized zirconia (YSZ) electrolyte. The three-dimensional nanofiber network cathode has several advantages: (i) high porosity; (ii) high percolation; (iii) continuous pathway for charge transport; (iv) good thermal stability at the operating temperature; and (v) excellent scaffold for infiltration. The fuel cell with the monolithic LSCF nanofiber cathode exhibits a power density of 0.90 W cm super(-2) at 1.9 A cm super(-2) at 750 degree C. The electrochemical performance of the fuel cell has been further improved by infiltration of 20 wt% of gadolinia-doped ceria (GDC) into the LSCF nanofiber cathode. The fuel cell with the LSCF-20% GDC composite cathode shows a power density of 1.07 W cm super(-2) at 1.9 A cm super(-2) at 750 degree C. The results obtained show that one-dimensional nanostructures such as nanofibers hold great promise as electrode materials for intermediate-temperature SOFCs. JF - Energy & Environmental Science AU - Zhi, Mingjia AU - Lee, Shiwoo AU - Miller, Nicholas AU - Menzler, Norbert H AU - Wu, Nianqiang AD - National Energy Technology Laboratory; Department of Energy; 3610 Collins Ferry Road; Morgantown; WV; 26507; USA; , nick.wu@mail.wvu.edu Y1 - 2012/04// PY - 2012 DA - Apr 2012 SP - 7066 EP - 7071 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 5 IS - 5 SN - 1754-5692, 1754-5692 KW - Environment Abstracts KW - Fuel technology KW - Composite materials KW - Electrolytes KW - Porosity KW - Temperature KW - Lanthanum KW - Cobalt KW - Energy KW - Electrodes KW - Infiltration KW - Strontium KW - Electrochemistry KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560105905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=An+intermediate-temperature+solid+oxide+fuel+cell+with+electrospun+nanofiber+cathode&rft.au=Zhi%2C+Mingjia%3BLee%2C+Shiwoo%3BMiller%2C+Nicholas%3BMenzler%2C+Norbert+H%3BWu%2C+Nianqiang&rft.aulast=Zhi&rft.aufirst=Mingjia&rft.date=2012-04-01&rft.volume=5&rft.issue=5&rft.spage=7066&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=17545692&rft_id=info:doi/10.1039%2Fc2ee02619h LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 36 N1 - Last updated - 2015-08-05 N1 - SubjectsTermNotLitGenreText - Composite materials; Fuel technology; Electrolytes; Energy; Cobalt; Porosity; Electrodes; Temperature; Infiltration; Strontium; Lanthanum; Electrochemistry DO - http://dx.doi.org/10.1039/c2ee02619h ER - TY - JOUR T1 - Effect of aeration on the physical and biogeochemical conditions in a Marcellus produced water storage pond AN - 1039341651; 2012-081923 AB - Development of deep horizontal drilling techniques has stimulated the recovery of natural gas from the Marcellus Shale formation in the Appalachian region, where thousands of wells are currently in production. Each hydrofracture requires millions of gallons of water amended with various chemicals to maximize gas extraction. Flowback water from the wells is typically high in salts dissolved from the formation and much of it is stored in surface ponds for further treatment and recycling. The storage of water can result in stagnant conditions and the generation of noxious odors, so aeration units are occasionally used to circulate and aerate the water. In this study, we examined the physical and biogeochemical changes in a produced water storage pond in Greene County, PA after 9 days of aeration. Physical parameters (including temperature, conductivity, pH, oxidation-reduction potential (ORP), and dissolved oxygen (DO)) were measured and water samples collected from selected depths along defined transects by boat. In the laboratory, element concentrations were measured by ICP-OES, anions by ion chromatography, dissolved sulfide by iodometric titration, and dissolved iron by phenanthroline complexation. Bacteria were examined using direct staining and fluorescent in situ hybridization (FISH) methods. All parameters measured were consistent with the existence of initially stratified conditions in the pond, with fresher water on the immediate surface, underlain by highly saline anoxic waters. Aeration resulted in the complete mixing of the water column and changes in the concentration of redox-sensitive chemical species. Water chemistry was dominated by Na (367 mM), Ca (119 mM) and Cl (508 mM) with smaller contributions from Mg (29 mM) and SO (sub 4) (23.1 mM). Dissolved sulfide concentrations prior to aeration were very high (ca. 1 mM), but were negligible following aeration. Bacterial analyses suggested a shift from a population dominated by sulfate-reducing bacteria at depth to a more diverse one throughout the water column following aeration. The aeration method employed was therefore effective at disrupting the stratification of the water column and the reduction of the sources and causative agents of noxious dissolved sulfide odor from the pond. JF - Abstracts with Programs - Geological Society of America AU - Sams, James AU - Edenborn, Harry M AU - Hakala, J Alexandra AU - Hammack, Richard W AU - Hartsock, Angela AU - Schroeder, Karl T AU - Anonymous Y1 - 2012/04// PY - 2012 DA - April 2012 SP - 76 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - hydraulic fracturing KW - Paleozoic KW - optical spectra KW - pollution KW - hydrochemistry KW - environmental analysis KW - reservoir rocks KW - ponds KW - physical properties KW - Middle Devonian KW - Devonian KW - ion chromatograms KW - Marcellus Shale KW - chromatograms KW - bacteria KW - aeration KW - Greene County Pennsylvania KW - spectra KW - Pennsylvania KW - chemical composition KW - water pollution KW - geochemistry KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039341651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effect+of+aeration+on+the+physical+and+biogeochemical+conditions+in+a+Marcellus+produced+water+storage+pond&rft.au=Sams%2C+James%3BEdenborn%2C+Harry+M%3BHakala%2C+J+Alexandra%3BHammack%2C+Richard+W%3BHartsock%2C+Angela%3BSchroeder%2C+Karl+T%3BAnonymous&rft.aulast=Sams&rft.aufirst=James&rft.date=2012-04-01&rft.volume=44&rft.issue=5&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 46th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-09-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aeration; bacteria; chemical composition; chromatograms; Devonian; environmental analysis; geochemistry; Greene County Pennsylvania; hydraulic fracturing; hydrochemistry; ion chromatograms; Marcellus Shale; Middle Devonian; optical spectra; Paleozoic; Pennsylvania; physical properties; pollution; ponds; reservoir rocks; spectra; United States; water pollution ER - TY - JOUR T1 - Lidar footprint of historic charcoal hearths at Greenwood Furnace, Huntington County, PA AN - 1039340057; 2012-081910 AB - Data from the Pennsylvania light detection and ranging (LiDAR) data acquisition program was processed in geographic information system (GIS) software to highlight historic charcoal hearths at Greenwood Furnace, located in the mountains of northeastern Huntingdon County, Pennsylvania. The community of Greenwood Furnace flourished here from 1834 to 1904 as a busy industrial complex based on iron production. The charcoal hearths and associated wagon roads are viewable in shaded relief images of the LiDAR digital elevation model (DEM) as circular features resembling small craters. Strings of hearths are readily evident along similar topographic contour lines on the adjacent hillsides. Approximately 500 historic charcoal hearths were identified in a 40 square mile area surrounding Greenwood Furnace. Today, the area around Greenwood Furnace supports a mixed hardwood forest and the charcoal hearths easily go unnoticed when hiking through these woods. JF - Abstracts with Programs - Geological Society of America AU - Sams, James AU - Edenborn, Harry M AU - Fagley, Paul T AU - Anonymous Y1 - 2012/04// PY - 2012 DA - April 2012 SP - 74 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - charcoal KW - archaeology KW - Quaternary KW - laser methods KW - geophysical surveys KW - geophysical methods KW - digital terrain models KW - Holocene KW - artifacts KW - Cenozoic KW - geographic information systems KW - lidar methods KW - archaeological sites KW - Huntingdon County Pennsylvania KW - surveys KW - information systems KW - Greenwood Furnace State Park KW - upper Holocene KW - Pennsylvania KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039340057?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Lidar+footprint+of+historic+charcoal+hearths+at+Greenwood+Furnace%2C+Huntington+County%2C+PA&rft.au=Sams%2C+James%3BEdenborn%2C+Harry+M%3BFagley%2C+Paul+T%3BAnonymous&rft.aulast=Sams&rft.aufirst=James&rft.date=2012-04-01&rft.volume=44&rft.issue=5&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 46th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-09-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - archaeological sites; archaeology; artifacts; Cenozoic; charcoal; digital terrain models; geographic information systems; geophysical methods; geophysical surveys; Greenwood Furnace State Park; Holocene; Huntingdon County Pennsylvania; information systems; laser methods; lidar methods; Pennsylvania; Quaternary; surveys; United States; upper Holocene ER - TY - JOUR T1 - Computed tomography scanning of a tufa deposit core from western Pennsylvania AN - 1039339950; 2012-081775 AB - Active limestone precipitation and accretion around springs and other groundwater seeps, due primarily to the degassing of carbon dioxide and the subsequent supersaturation of calcium carbonate, results in formations variably referred to as tufa or travertine. Such deposits in eastern North America are especially well-known in the karst region of western Virginia, often associated with the discharge of thermal spring waters, but reports of tufa formations outside of this specific region are few. Recently, we have studied a perched springline tufa that is associated with the Benwood Limestone member of the Upper Pennsylvanian, Monongahela Group. Like many sites in this region, the steep elevational drop in discharged water and enhanced carbon dioxide release are related to human disturbances of natural terrain during the past 150 years, such as highway and railroad construction and the strip mining of bituminous coal. Preliminary core material was collected from the tufa site and analyzed by computed tomography (CT) scanning. The core scans showed the limestone material to be extremely vuggy and porous. The CT scanning produced 3D volume reconstructions with resolution in the 20-30 micron range making it possible to nondestructively extract various physical characteristics of the tufa samples. For each sample the porosity and pore size distribution were extracted as well as the surface area of the porosity and the connectivity of the functional pore spaces. The observed limestone structure is consistent with the active and continuous calcification of the moss that grows in dense mats on the surface of the tufa deposit. Such core scans may provide the basis for future descriptive modeling in the fields of karst geology and carbon dioxide sequestration. JF - Abstracts with Programs - Geological Society of America AU - Edenborn, Harry M AU - McIntyre, Dustin L AU - Moore, Johnathan E AU - Vesper, Dorothy J AU - Anonymous Y1 - 2012/04// PY - 2012 DA - April 2012 SP - 24 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Plantae KW - chemically precipitated rocks KW - three-dimensional models KW - Pennsylvanian KW - living taxa KW - Paleozoic KW - Carboniferous KW - calcification KW - porosity KW - Bryophyta KW - carbon dioxide KW - Benwood Limestone Member KW - sedimentary rocks KW - Monongahela Group KW - Upper Pennsylvanian KW - precipitation KW - springs KW - tufa KW - Pennsylvania KW - computed tomography data KW - western Pennsylvania KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039339950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Computed+tomography+scanning+of+a+tufa+deposit+core+from+western+Pennsylvania&rft.au=Edenborn%2C+Harry+M%3BMcIntyre%2C+Dustin+L%3BMoore%2C+Johnathan+E%3BVesper%2C+Dorothy+J%3BAnonymous&rft.aulast=Edenborn&rft.aufirst=Harry&rft.date=2012-04-01&rft.volume=44&rft.issue=5&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 46th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-09-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Benwood Limestone Member; Bryophyta; calcification; carbon dioxide; Carboniferous; chemically precipitated rocks; computed tomography data; living taxa; Monongahela Group; Paleozoic; Pennsylvania; Pennsylvanian; Plantae; porosity; precipitation; sedimentary rocks; springs; three-dimensional models; tufa; United States; Upper Pennsylvanian; western Pennsylvania ER - TY - JOUR T1 - Strengthening Concepts & Mechanical Behavior of Ni-Base Alloys in A-USC Steam Turbines AN - 1372608596; 18028396 AB - Experience with nickel-base alloys for use at 1400 degree F has shown that commercial, "off-the-shelf" nickel superalloys exist for these applications, and while promising, the alloy in the off-the-shelf condition may not provide for all long-term mechanical needs in steam. One alloy, Haynes 282, has shown robust capability in terms of starting microstructure (gamma prime size & volume fraction). Another alloy, Nimonic 105, has exhibited the potential for improved creep behavior in the peak aged condition as well as when aged. These alloys are among several that offer the best potential for building steam turbine components for a power plant operating at =1400 degree F. Design strategy, strengthening concepts and creep behavior will be discussed for each alloy, highlighting differences in each alloy and their respective strengths relative to use as steam turbine components. Suggestions for improving alloy performance will also be discussed. JF - AIP Conference Proceedings AU - Hawk, Jeffrey AU - Jablonski, Paul AD - U.S. Department of Energy, National Energy Technology Laboratory Y1 - 2012/03/15/ PY - 2012 DA - 2012 Mar 15 PB - American Institute of Physics, Ste. 1NO1 Melville NY 11747-4502 United States SN - 0094-243X, 0094-243X KW - Environment Abstracts KW - Cobalt base alloys KW - Superalloys KW - Nickel base alloys KW - Haynes KW - Haynes 282 KW - Nimonic 105 KW - Turbines KW - Creep KW - Behavior KW - Conferences KW - Nickel KW - Power plants KW - Alloys KW - Technology KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1372608596?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Strengthening+Concepts+%26amp%3B+Mechanical+Behavior+of+Ni-Base+Alloys+in+A-USC+Steam+Turbines&rft.au=Hawk%2C+Jeffrey%3BJablonski%2C+Paul&rft.aulast=Hawk&rft.aufirst=Jeffrey&rft.date=2012-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Turbines; Creep; Conferences; Behavior; Nickel; Power plants; Alloys; Technology ER - TY - JOUR T1 - Microstructure and Hydrogen Transport Property of a Mg-Doped Cu-Pd Alloy AN - 1372607157; 18027923 AB - To produce high purity hydrogen fuel from coal, hydrogen gas has to be extracted from syngas, a product of coal gasification. Gas separation membranes can be utilized to achieve this goal. Although a variety of hydrogen separation membrane materials exist today, none of them is shown to be suitable to be employed in contaminant laden syngas at elevated temperatures. Cu-Pd alloys with ordered bcc (B2) phase have demonstrated some promise for being resistant against surface poisoning and corrosion. In these alloys, the superior hydrogen flux increases up to temperatures at which the alloy transforms primarily into fcc structure where a sharp drop in flux occurs. First principles DFT calculations and experiments (XRD, SEM, TEM) have shown that magnesium additions to the Cu-Pd alloy extend the stability of the B2 phase field, potentially improving the hydrogen permeability at higher temperatures. JF - AIP Conference Proceedings AU - Dogan, Omer AU - Hu, Rongxiang AU - Gao, Michael AU - Song, Xueyan AD - DOE National Energy Technology Laboratory Y1 - 2012/03/15/ PY - 2012 DA - 2012 Mar 15 PB - American Institute of Physics, Ste. 1NO1 Melville NY 11747-4502 United States SN - 0094-243X, 0094-243X KW - Sustainability Science Abstracts; Environment Abstracts KW - Membranes KW - Conferences KW - Fuels KW - Temperature KW - Poisoning KW - Corrosion KW - Alloys KW - Hydrogen KW - Coal KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1372607157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Microstructure+and+Hydrogen+Transport+Property+of+a+Mg-Doped+Cu-Pd+Alloy&rft.au=Dogan%2C+Omer%3BHu%2C+Rongxiang%3BGao%2C+Michael%3BSong%2C+Xueyan&rft.aulast=Dogan&rft.aufirst=Omer&rft.date=2012-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Membranes; Conferences; Fuels; Corrosion; Poisoning; Temperature; Alloys; Coal; Hydrogen ER - TY - JOUR T1 - Meeting the Materials Challenges to Enable Clean Coal Technologies AN - 1372607011; 18028752 AB - Realization that the environmental impact of energy production must be reduced on a global scale, combined with an increased national desire to reduce dependence on foreign energy, is driving significant change in the energy outlook of the United States. While renewable energy resources will continue to grow in importance, environmentally responsible fossil energy production will be necessary to provide a bridge to the next energy revolution. This drive to increase process efficiencies and reduce the environmental impact in fossil-based energy production will require processes with increased operating temperatures and pressures, and increasingly aggressive operating environments. The practical result is a requirement for affordable and reliable high-performance materials and materials systems to enable these next-generation fossil energy systems. This talk will focus on the research being performed within the National Energy Technology Laboratory's Office of Research & Development to meet this requirement for high performance yet affordable materials. JF - AIP Conference Proceedings AU - Morreale, Bryan AU - Powell, Cynthia AD - US DOE National Energy Technology Laboratory Y1 - 2012/03/15/ PY - 2012 DA - 2012 Mar 15 PB - American Institute of Physics, Ste. 1NO1 Melville NY 11747-4502 United States SN - 0094-243X, 0094-243X KW - Environment Abstracts KW - USA KW - Conferences KW - Renewable energy KW - Environmental impact KW - Temperature KW - Coal KW - Technology KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1372607011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Meeting+the+Materials+Challenges+to+Enable+Clean+Coal+Technologies&rft.au=Morreale%2C+Bryan%3BPowell%2C+Cynthia&rft.aulast=Morreale&rft.aufirst=Bryan&rft.date=2012-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Conferences; Renewable energy; Temperature; Environmental impact; Coal; Technology; USA ER - TY - JOUR T1 - Computational Modeling of Oxidation and Corrosion of Alloys in Complex Environments AN - 1372606180; 18026861 AB - Advanced energy systems, such as oxyfuel and ultra-supercriticalsteam combustion boilers, oxyfuel and hydrogen turbines and advanced gasification systems, will operate at higher temperatures and in complex environments. Due to the complexity of a typical multi-oxidant environment, it is very challenging if not impossible to predict the corrosion product with confidence. The computational approach available is largely based on thermodynamic calculations without any consideration of kinetics effect. To address the kinetic effect, a multi-faceted modeling approach is being developed at NETL/DOE to study oxidation kinetics under different length scales. Some progresses are discussed in this presentation based on results from mean-field and phase-field methods. The computational tools can be used to simulate environmental effect on oxidation behavior. JF - AIP Conference Proceedings AU - Wen, Youhai AU - Wu, Kaisheng AU - Chen, Long-Qing AU - Hawk, Jeff AD - National Energy Technology Laboratory Y1 - 2012/03/15/ PY - 2012 DA - 2012 Mar 15 PB - American Institute of Physics, Ste. 1NO1 Melville NY 11747-4502 United States SN - 0094-243X, 0094-243X KW - Environment Abstracts KW - Turbines KW - Conferences KW - Thermodynamics KW - Kinetics KW - Oxidation KW - Corrosion KW - Alloys KW - Boilers KW - Combustion KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1372606180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Computational+Modeling+of+Oxidation+and+Corrosion+of+Alloys+in+Complex+Environments&rft.au=Wen%2C+Youhai%3BWu%2C+Kaisheng%3BChen%2C+Long-Qing%3BHawk%2C+Jeff&rft.aulast=Wen&rft.aufirst=Youhai&rft.date=2012-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Turbines; Thermodynamics; Conferences; Kinetics; Oxidation; Corrosion; Alloys; Boilers; Combustion ER - TY - JOUR T1 - Welding of gold nanoparticles on graphitic templates for chemical sensing. AN - 923191141; 22280145 AB - Controlled self-assembly of zero-dimensional gold nanoparticles and construction of complex gold nanostructures from these building blocks could significantly extend their applications in many fields. Carbon nanotubes are one of the most promising inorganic templates for this strategy because of their unique physical, chemical, and mechanical properties, which translate into numerous potential applications. Here we report the bottom-up synthesis of gold nanowires in aqueous solution through self-assembly of gold nanoparticles on single-walled carbon nanotubes followed by thermal-heating-induced nanowelding. We investigate the mechanism of this process by exploring different graphitic templates. The experimental work is assisted by computational studies that provide additional insight into the self-assembly and nanowelding mechanism. We also demonstrate the chemical sensitivity of the nanomaterial to parts-per-billion concentrations of hydrogen sulfide with potential applications in industrial safety and personal healthcare. JF - Journal of the American Chemical Society AU - Ding, Mengning AU - Sorescu, Dan C AU - Kotchey, Gregg P AU - Star, Alexander AD - National Energy Technology Laboratory, U.S. Department of Energy, Pittsburgh, Pennsylvania 15236, USA. Y1 - 2012/02/22/ PY - 2012 DA - 2012 Feb 22 SP - 3472 EP - 3479 VL - 134 IS - 7 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/923191141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Family+Issues&rft.atitle=Adult+Couples+Facing+a+Planned+or+an+Unplanned+Pregnancy%3A+Two+Realities&rft.au=Bouchard%2C+Genevi%C3%A8ve&rft.aulast=Bouchard&rft.aufirst=Genevi%C3%A8ve&rft.date=2005-07-01&rft.volume=26&rft.issue=5&rft.spage=619&rft.isbn=&rft.btitle=&rft.title=Journal+of+Family+Issues&rft.issn=0192513X&rft_id=info:doi/10.1177%2F0192513X04272756 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2012-05-08 N1 - Date created - 2012-02-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/ja210278u ER - TY - CPAPER T1 - NETL CO2 Injection and Storage Cost Model T2 - 2012 Carbon Management Technology Conference AN - 1313080747; 6159687 JF - 2012 Carbon Management Technology Conference AU - Grant, T AU - Morgan, D AU - Godec, M AU - Lawrence, R AU - Valenstein, J AU - Murray, R Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Storage KW - Carbon dioxide KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313080747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=NETL+CO2+Injection+and+Storage+Cost+Model&rft.au=Grant%2C+T%3BMorgan%2C+D%3BGodec%2C+M%3BLawrence%2C+R%3BValenstein%2C+J%3BMurray%2C+R&rft.aulast=Grant&rft.aufirst=T&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Advancing Oxycombustion Technology for Bituminous Coal Power Plants: An R&D Guide T2 - 2012 Carbon Management Technology Conference AN - 1313055235; 6159672 JF - 2012 Carbon Management Technology Conference AU - Matuszewski, M AU - Brasington, R AU - Woods, M Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Coal KW - Power plants KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313055235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=Advancing+Oxycombustion+Technology+for+Bituminous+Coal+Power+Plants%3A+An+R%26amp%3BD+Guide&rft.au=Matuszewski%2C+M%3BBrasington%2C+R%3BWoods%2C+M&rft.aulast=Matuszewski&rft.aufirst=M&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - US DOE's Major Demonstration Program Status T2 - 2012 Carbon Management Technology Conference AN - 1313019512; 6159692 JF - 2012 Carbon Management Technology Conference AU - McMillian, M Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Environmental engineering: KW - Technology KW - Carbon UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313019512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=US+DOE%27s+Major+Demonstration+Program+Status&rft.au=McMillian%2C+M&rft.aulast=McMillian&rft.aufirst=M&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - NEMS-CTS: A Model and Framework for Comprehensive Assessment of CCS and Infrastructure T2 - 2012 Carbon Management Technology Conference AN - 1313014211; 6159612 JF - 2012 Carbon Management Technology Conference AU - Zelek, C AU - Geisbrecht, R AU - Grant, T AU - Goudarzi, L AU - Callahan, K AU - Babuich, W Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Infrastructure KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313014211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=NEMS-CTS%3A+A+Model+and+Framework+for+Comprehensive+Assessment+of+CCS+and+Infrastructure&rft.au=Zelek%2C+C%3BGeisbrecht%2C+R%3BGrant%2C+T%3BGoudarzi%2C+L%3BCallahan%2C+K%3BBabuich%2C+W&rft.aulast=Zelek&rft.aufirst=C&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - US DOE National Energy Technology Laboratory's Post Combustion Carbon Capture R&D Program T2 - 2012 Carbon Management Technology Conference AN - 1313009551; 6159673 JF - 2012 Carbon Management Technology Conference AU - Ciferno, J AU - Munson, R AU - Murphy, J Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Combustion KW - Technology KW - Carbon KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313009551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=US+DOE+National+Energy+Technology+Laboratory%27s+Post+Combustion+Carbon+Capture+R%26amp%3BD+Program&rft.au=Ciferno%2C+J%3BMunson%2C+R%3BMurphy%2C+J&rft.aulast=Ciferno&rft.aufirst=J&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Effects of the CCS Technology Deployment on Water Demand at Coal-Fired Power Plants T2 - 2012 Carbon Management Technology Conference AN - 1313007954; 6159659 JF - 2012 Carbon Management Technology Conference AU - Ciferno, J Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Coal KW - Power plants KW - Water demand KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313007954?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=Effects+of+the+CCS+Technology+Deployment+on+Water+Demand+at+Coal-Fired+Power+Plants&rft.au=Ciferno%2C+J&rft.aulast=Ciferno&rft.aufirst=J&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - What's Next in Geologic CO2 Storage Research? T2 - 2012 Carbon Management Technology Conference AN - 1313007400; 6159650 JF - 2012 Carbon Management Technology Conference AU - Litynski, J AU - Rodosta, T AU - Myer, L AU - Kane, R AU - Washington, G Y1 - 2012/02/07/ PY - 2012 DA - 2012 Feb 07 KW - Storage KW - Geology KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313007400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2012+Carbon+Management+Technology+Conference&rft.atitle=What%27s+Next+in+Geologic+CO2+Storage+Research%3F&rft.au=Litynski%2C+J%3BRodosta%2C+T%3BMyer%2C+L%3BKane%2C+R%3BWashington%2C+G&rft.aulast=Litynski&rft.aufirst=J&rft.date=2012-02-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2012+Carbon+Management+Technology+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.carbonmgmt.org/pages/schedule/tech%20program/index.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Catalytic formation of carbonyl sulfide during warm gas clean-up of simulated coal-derived fuel gas with Pd/ gamma -Al sub(2)O sub(3) sorbents AN - 918050506; 16035028 AB - Coal gasification processes, such as the Integrated Gasification Combined Cycle (IGCC), will increase in importance due to the expanding concern over CO sub(2) emissions and global climate change. During the development of a Pd/ gamma -Al sub(2)O sub(3) sorbent for warm (200 degree C) fuel gas cleanup, the catalytic formation of carbonyl sulfide (COS), was observed. This is attributed to a heterogeneous reaction involving fuel gas components (CO/CO sub(2)/H sub(2)/H sub(2)S/H sub(2)O) and Pd/ gamma -Al sub(2)O sub(3). The concentration of COS increases 200-fold when exposed to the Pd/ gamma -Al sub(2)O sub(3) sorbent. A Langmuir-Hinshelwood reaction mechanism is proposed and a kinetic model is developed based on experimental results. The effect of gamma -Al sub(2)O sub(3), a common catalyst for hydrolysis of COS, and H sub(2)O on the COS concentration is discussed. JF - Fuel AU - Rupp, Erik C AU - Granite, Evan J AU - Stanko, Dennis C AD - National Energy Technology Laboratory, US Department of Energy, P.O. Box 10940, Pittsburgh, PA 15236-0940, United States, erik.rupp@gmail.com Y1 - 2012/02// PY - 2012 DA - Feb 2012 SP - 211 EP - 215 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 92 IS - 1 SN - 0016-2361, 0016-2361 KW - Environment Abstracts KW - Carbonyl sulfide KW - Hydrogen sulfide KW - Palladium KW - Catalyst KW - Gasification KW - Sorbents KW - Fuels KW - Sulfides KW - Emissions KW - Coal KW - Carbon dioxide KW - carbonyl compounds KW - Hydrolysis KW - gasification KW - ENA 11:Non-Renewable Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918050506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Religion+and+Health&rft.atitle=Religious+coping+and+locus+of+control+in+normal+pregnancy%3A+Moderating+effects+between+pregnancy+worries+and+mental+health&rft.au=Puente%2C+Cecilia+Pe%C3%B1acoba%3BMorales%2C+Dolores+Mar%C3%ADn%3BMonge%2C+Francisco+Javier+Carmona&rft.aulast=Puente&rft.aufirst=Cecilia&rft.date=2015-10-01&rft.volume=54&rft.issue=5&rft.spage=1598&rft.isbn=&rft.btitle=&rft.title=Journal+of+Religion+and+Health&rft.issn=00224197&rft_id=info:doi/10.1007%2Fs10943-014-9881-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Sorbents; Fuels; Sulfides; Emissions; Coal; Carbon dioxide; Hydrolysis; carbonyl compounds; gasification DO - http://dx.doi.org/10.1016/j.fuel.2011.06.055 ER - TY - JOUR T1 - Atmospheric monitoring of a perfluorocarbon tracer at the 2009 ZERT Center experiment AN - 1671354296; 16165871 AB - Field experiments at Montana State University are conducted for the U.S. Department of Energy as part of the Zero Emissions Research and Technology Center (ZERT) to test and verify monitoring techniques for carbon capture and storage (CCS). A controlled release of CO2 with an added perfluorocarbon tracer was conducted in July 2009 in a multi-laboratory study of atmospheric transport and detection technologies. Tracer plume dispersion was measured with various meteorological conditions using a tethered balloon system with Multi-Tube Remote Samplers (MTRS) at elevations of 10m, 20m, and 40m above ground level (AGL), as well as a ground-based portable tower with monitors containing sorbent material to collect the tracer at 1m, 2m, 3m, and 4m AGL. Researchers designed a horizontal grid of sampling locations centered at the tracer plume source, with the tower positioned at 10m and 30m in both upwind and downwind directions, and the MTRS spaced at 50m and 90m downwind and 90m upwind. Tracer was consistently detected at elevated concentrations at downwind sampling locations. With very few exceptions, higher tracer concentrations correlated with lower elevations. Researchers observed no statistical difference between sampling at 50m and 90m downwind at the same elevation. The US EPA AERMOD model applied using site-specific information predicted transport and dispersion of the tracer. Model results are compared to experimental data from the 2009 ZERT experiment. Successful characterization of the tracer plume simulated by the ZERT experiment is considered a step toward demonstrating the feasibility of remote sampling with unmanned aerial systems (UAS's) at future sequestration sites. JF - Atmospheric Environment AU - Pekney, Natalie AU - Wells, Arthur AU - Rodney Diehl, J AU - McNeil, Matthew AU - Lesko, Natalie AU - Armstrong, James AU - Ference, Robert AD - National Energy Technology Laboratory, Environmental Sciences Division, 626 Cochrans Mill Road, Pittsburgh, PA 15236, USA Y1 - 2012/02// PY - 2012 DA - February 2012 SP - 124 EP - 132 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 47 SN - 1352-2310, 1352-2310 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Dispersions KW - Tracers KW - Mathematical models KW - Elevation KW - Perfluorocarbons KW - Atmospherics KW - Sampling KW - Plumes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671354296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Atmospheric+monitoring+of+a+perfluorocarbon+tracer+at+the+2009+ZERT+Center+experiment&rft.au=Pekney%2C+Natalie%3BWells%2C+Arthur%3BRodney+Diehl%2C+J%3BMcNeil%2C+Matthew%3BLesko%2C+Natalie%3BArmstrong%2C+James%3BFerence%2C+Robert&rft.aulast=Pekney&rft.aufirst=Natalie&rft.date=2012-02-01&rft.volume=47&rft.issue=&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2011.11.024 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-09-01 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1016/j.atmosenv.2011.11.024 ER - TY - JOUR T1 - Tracking changes in the SMT with magnetic susceptibility in gas hydrate bearing stratigraphy AN - 1287410278; 662769-180 JF - Ocean Sciences Meeting AU - Phillips, Stephen C AU - Johnson, Joel E AU - Giosan, L AU - Rose, Kelly AU - Clyde, Will C AU - The Oceanography, Society AU - American Society of Limnology and, Oceanography AU - American Geophysical, Union Y1 - 2012/02// PY - 2012 DA - February 2012 SP - 365 PB - American Geophysical Union (AGU), [varies] VL - 2012 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287410278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ocean+Sciences+Meeting&rft.atitle=Tracking+changes+in+the+SMT+with+magnetic+susceptibility+in+gas+hydrate+bearing+stratigraphy&rft.au=Phillips%2C+Stephen+C%3BJohnson%2C+Joel+E%3BGiosan%2C+L%3BRose%2C+Kelly%3BClyde%2C+Will+C%3BThe+Oceanography%2C+Society%3BAmerican+Society+of+Limnology+and%2C+Oceanography%3BAmerican+Geophysical%2C+Union&rft.aulast=Phillips&rft.aufirst=Stephen&rft.date=2012-02-01&rft.volume=2012&rft.issue=&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Ocean+Sciences+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - TOS, ASLO, AGU 2012 ocean sciences meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 N1 - CODEN - #07653 ER - TY - JOUR T1 - Strontium isotope study of coal utilization by-products interacting with environmental waters AN - 1008817768; 2012-037495 AB - Sequential leaching experiments on coal utilization by-products (CUB) were coupled with chemical and strontium (Sr) isotopic analyses to better understand the influence of coal type and combustion processes on CUB properties and the release of elements during interaction with environmental waters during disposal. Class C fly ash tended to release the highest quantity of minor and trace elements-including alkaline earth elements, sodium, chromium, copper, manganese, lead, titanium, and zinc-during sequential extraction, with bottom ash yielding the lowest. Strontium isotope ratios ( (super 87) Sr/ (super 86) Sr) in bulk-CUB samples (total dissolution of CUB) are generally higher in class F ash than in class C ash. Bulk-CUB ratios appear to be controlled by the geologic source of the mineral matter in the feed coal, and by Sr added during desulfurization treatments. Leachates of the CUB generally have Sr isotope ratios that are different than the bulk value, demonstrating that Sr was not isotopically homogenized during combustion. Variations in the Sr isotopic composition of CUB leachates were correlated with mobility of several major and trace elements; the data suggest that arsenic and lead are held in phases that contain the more radiogenic (high- (super 87) Sr/ (super 86) Sr) component. A changing Sr isotope ratio of CUB-interacting waters in a disposal environment could forecast the release of certain strongly bound elements of environmental concern. This study lays the groundwork for the application of Sr isotopes as an environmental tracer for CUB-water interaction. JF - Journal of Environmental Quality AU - Spivak-Birndorf, Lev J AU - Stewart, Brian W AU - Capo, Rosemary C AU - Chapman, Elizabeth C AU - Schroeder, Karl T AU - Brubaker, Tonya M Y1 - 2012/02// PY - 2012 DA - February 2012 SP - 144 EP - 154 PB - American Society of Agronomy, [and] Crop Science Society of America, [and] Soil Science Society of America, Madison, WI VL - 41 IS - 1 SN - 0047-2425, 0047-2425 KW - alkaline earth metals KW - experimental studies KW - degradation KW - isotopes KW - isotope ratios KW - pollution KW - combustion KW - stable isotopes KW - Sr-87/Sr-86 KW - sedimentary rocks KW - ash KW - major elements KW - metals KW - coal KW - water treatment KW - sequential extraction KW - leachate KW - trace elements KW - leaching KW - chemical composition KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Strontium+isotope+study+of+coal+utilization+by-products+interacting+with+environmental+waters&rft.au=Spivak-Birndorf%2C+Lev+J%3BStewart%2C+Brian+W%3BCapo%2C+Rosemary+C%3BChapman%2C+Elizabeth+C%3BSchroeder%2C+Karl+T%3BBrubaker%2C+Tonya+M&rft.aulast=Spivak-Birndorf&rft.aufirst=Lev&rft.date=2012-02-01&rft.volume=41&rft.issue=1&rft.spage=144&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/10.2134%2Fjeq2011.0222 L2 - http://jeq.scijournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 54 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JEVQAA N1 - SubjectsTermNotLitGenreText - alkaline earth metals; ash; chemical composition; coal; combustion; degradation; experimental studies; isotope ratios; isotopes; leachate; leaching; major elements; metals; pollution; sedimentary rocks; sequential extraction; Sr-87/Sr-86; stable isotopes; strontium; trace elements; water treatment DO - http://dx.doi.org/10.2134/jeq2011.0222 ER - TY - JOUR T1 - Modeling the effect of particle size on the activation energy and ignition temperature of metallic nanoparticles AN - 1671344825; 16127686 AB - The present work reports a simple theoretical model to calculate the effect of the particle size on the activation energy and the ignition temperature of metallic nanoparticles. The activation energy was deduced from the particle cohesive energy and the ignition temperature was calculated using the condition that the heat generated by the combustion reactions is sufficient to counterbalance the particle heat loss to the surrounding. Heat loss was assumed to be in the transient regime and the combustion heat generation was calculated using the simplest Arrhenius-type model. Using aluminum as an example, the results showed that for particles of sizes larger than 50 nm, increasing the particle size had a little effect on the number of the surface atoms, the activation energy and the ignition temperature. As the particle size decreases the number of the surface atoms increases and the corresponding activation energy, E sub(d)/E sub( infinity ) and the ignition temperature decrease. As the particle size decreased to about 5 nm and smaller, the activation energy could reduce to 20% or 50% of the bulk value and an ignition temperature as low as 800 K was obtained from the calculation depending on the ratio of the coordination number. JF - Combustion and Flame AU - Phuoc, Tran X AU - Chen, Ruey-Hung AD - National Energy Technology Laboratory, Department of Energy, P.O. Box 10940, MS 84-340, Pittsburgh, PA 15261, United States Y1 - 2012/01// PY - 2012 DA - Jan 2012 SP - 416 EP - 419 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 159 IS - 1 SN - 0010-2180, 0010-2180 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Aluminium Industry Abstracts (AI); Aerospace & High Technology Database (AH) KW - Particle size KW - Heat loss KW - Activation energy KW - Mathematical models KW - Ignition temperature KW - Nanoparticles KW - Surface chemistry KW - Combustion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671344825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Combustion+and+Flame&rft.atitle=Modeling+the+effect+of+particle+size+on+the+activation+energy+and+ignition+temperature+of+metallic+nanoparticles&rft.au=Phuoc%2C+Tran+X%3BChen%2C+Ruey-Hung&rft.aulast=Phuoc&rft.aufirst=Tran&rft.date=2012-01-01&rft.volume=159&rft.issue=1&rft.spage=416&rft.isbn=&rft.btitle=&rft.title=Combustion+and+Flame&rft.issn=00102180&rft_id=info:doi/10.1016%2Fj.combustflame.2011.07.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2015-04-09 DO - http://dx.doi.org/10.1016/j.combustflame.2011.07.003 ER - TY - JOUR T1 - Resource assessment of the Marcellus Shale AN - 1434005449; 2013-073881 JF - AAPG Memoir AU - Smosna, Richard AU - Bruner, Kathy R Y1 - 2012 PY - 2012 DA - 2012 SP - 19 EP - 20 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 97 SN - 0271-8529, 0271-8529 KW - resources KW - North America KW - shale KW - Paleozoic KW - natural gas KW - petroleum KW - reservoir rocks KW - organic compounds KW - sedimentary rocks KW - reserves KW - Middle Devonian KW - Devonian KW - pyrolysis KW - Appalachian Basin KW - total organic carbon KW - Marcellus Shale KW - thickness KW - geochemistry KW - clastic rocks KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1434005449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Memoir&rft.atitle=Resource+assessment+of+the+Marcellus+Shale&rft.au=Smosna%2C+Richard%3BBruner%2C+Kathy+R&rft.aulast=Smosna&rft.aufirst=Richard&rft.date=2012-01-01&rft.volume=97&rft.issue=&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=AAPG+Memoir&rft.issn=02718529&rft_id=info:doi/10.1306%2F13321466M973492 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - PubXState - OK N1 - SuppNotes - Extended abstract N1 - Last updated - 2013-09-20 N1 - CODEN - MAPGAN N1 - SubjectsTermNotLitGenreText - Appalachian Basin; clastic rocks; Devonian; geochemistry; Marcellus Shale; Middle Devonian; natural gas; North America; organic compounds; Paleozoic; petroleum; pyrolysis; reserves; reservoir rocks; resources; sedimentary rocks; shale; thickness; total organic carbon DO - http://dx.doi.org/10.1306/13321466M973492 ER - TY - JOUR T1 - Experimental measurements and equation of state modeling of liquid densities for long-chain n-alkanes at pressures to 265 MPa and temperatures to 523 AN - 963845960; 15893474 AB - Experimental densities are reported for n-hexadecane, n-octadecane, and n-eicosane at pressures to a arrow right 4265MPa and temperatures of 323.15, 423.15, and 523.15K. The reported densities are in good agreement with the available literature data that cover limited pressure and temperature ranges. The Peng-Robinson equation of state (PR EOS), a new high-temperature high-pressure volume-translated Soave-Redlich-Kwong equation of state (HTHP-VT SRK EOS), and the perturbed-chain statistical associating fluid theory (PC-SAFT) are used to predict the reported densities. Both the HTHP-VT SRK and PC-SAFT equations exhibit mean absolute percent deviation (MAPD) values of 2.4-1.3% for the densities of all three hydrocarbons while the MAPD values for the PR EOS are all near 16%. JF - Fluid Phase Equilibria AU - Wu, Yue AU - Bamgbade, Babatunde AU - Liu, Kun AU - McHugh, Mark A AU - Baled, Hseen AU - Enick, Robert M AU - Burgess, Ward A AU - Tapriyal, Deepak AU - Morreale, Bryan D AD - National Energy Technology Laboratory, Office of Research and Development, Department of Energy, Pittsburgh, PA, USA, wuy@vcu.edu Y1 - 2011/12/15/ PY - 2011 DA - 2011 Dec 15 SP - 17 EP - 24 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 311 SN - 0378-3812, 0378-3812 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Long chain hydrocarbon KW - High pressure KW - Density KW - PC-SAFT KW - Volume translated SRK KW - PR KW - Mathematical models KW - Hydrocarbons KW - Temperature KW - Equations of state KW - Model Studies KW - Modelling KW - Q2 09183:Physics and chemistry KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/963845960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fluid+Phase+Equilibria&rft.atitle=Experimental+measurements+and+equation+of+state+modeling+of+liquid+densities+for+long-chain+n-alkanes+at+pressures+to+265+MPa+and+temperatures+to+523&rft.au=Wu%2C+Yue%3BBamgbade%2C+Babatunde%3BLiu%2C+Kun%3BMcHugh%2C+Mark+A%3BBaled%2C+Hseen%3BEnick%2C+Robert+M%3BBurgess%2C+Ward+A%3BTapriyal%2C+Deepak%3BMorreale%2C+Bryan+D&rft.aulast=Wu&rft.aufirst=Yue&rft.date=2011-12-15&rft.volume=311&rft.issue=&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Fluid+Phase+Equilibria&rft.issn=03783812&rft_id=info:doi/10.1016%2Fj.fluid.2011.08.020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Mathematical models; Hydrocarbons; Equations of state; Modelling; Density; Temperature; Model Studies DO - http://dx.doi.org/10.1016/j.fluid.2011.08.020 ER - TY - JOUR T1 - X-ray computed-tomography imaging of preferential mode of gas migration through water-saturated sediments AN - 959099553; 2012-035983 AB - Field observations suggest that gas transport through water-saturated soft sediment is an essential component of seafloor dynamics, and that it exerts a fundamental control on natural gas seeps, the creation of pockmarks in the ocean floor, and the growth and form of gas hydrates. In this study, we use controlled experiments and computed tomography (CT) imaging to investigate the preferential mode of gas migration in three-dimensional samples of water-saturated silica-sand, silica-silt, kaolin-clay, as well as multi-layered sediments. Our experimental system allows independent control of radial and axial confining stresses and pore pressure while performing continuous x-ray CT scanning. The CT image analysis of the gas migration provides the first experimental confirmation, in three-dimensional systems, that capillary invasion preferentially occurs in coarse-grained sediments whereas grain displacement and conduit openings are dominant in fine-grained sediments [1]. Our findings rationalize prior field observations and pore-scale modeling results which suggest the strong control of grain size and sediment mechanics on the nature of gas invasion into water-filled porous media. These data provide critical experimental evidence to explain the means by which conduits for the transit of methane gas may be established through the gas hydrate stability zone in oceanic sediments, and cause large episodic releases of carbon into the deep ocean. JF - American Geophysical Union Fall Meeting AU - Seol, Yongkoo AU - Choi, J AU - Rosenbaum, Eilis AU - Boswell, Ray M AU - Juanes, R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41B EP - 0809 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tomography KW - clay KW - migration KW - experimental studies KW - gas hydrates KW - three-dimensional models KW - clastic sediments KW - grain size KW - geochemical cycle KW - marine sediments KW - computed tomography KW - fine-grained materials KW - carbon KW - sediments KW - carbon cycle KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=X-ray+computed-tomography+imaging+of+preferential+mode+of+gas+migration+through+water-saturated+sediments&rft.au=Seol%2C+Yongkoo%3BChoi%2C+J%3BRosenbaum%2C+Eilis%3BBoswell%2C+Ray+M%3BJuanes%2C+R%3BAnonymous&rft.aulast=Seol&rft.aufirst=Yongkoo&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dgc41b&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c3923%7cX-Ray%20Computed-Tomography%20Imaging%20of%20Preferential%20Mode%20of%20Gas%20Migration%20through%20Water-Saturated%20Sediments%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c27160392%2027164315%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon; carbon cycle; clastic sediments; clay; computed tomography; experimental studies; fine-grained materials; gas hydrates; geochemical cycle; grain size; marine sediments; migration; sediments; three-dimensional models; tomography ER - TY - JOUR T1 - Role of lithology in methane flux from an Alaskan thermokarst lake AN - 959099503; 2012-035981 AB - Thermokarst lakes are prevalent forms on the Alaska North Slope (ANS) that can emit significant quantities of the greenhouse gas methane to the atmosphere. These lakes form in permafrost regions and grow as the water amplifies subsurface heating and causes further degradation of the permafrost. Areas of thawed ground (thaw-bulbs, or taliks) can develop beneath them. When a talik intersects fractures or permeable zones linked to free-gas accumulations, coal beds, or permafrost-associated gas hydrate, methane can be released from the lake. In 2009, a four-core transect extending from an active gas seep in Qalluuraq Lake (Lake Q), an Alaskan thermokarst lake, was taken for lithological analysis to complement paleoecological and biogeochemical studies investigating the current and historical flux of methane from this lake. As part of this study, we completed sedimentological analyses to constrain the lithology of the system and evaluate potential near-lake floor geologic controls on methane seepage at this site. Visual descriptions were completed for each core. Grain size, x-ray diffraction (XRD), petrographic, elemental (C and N) and accelerator mass spectrometer (AMS) radiocarbon analyses were also conducted on subsamples from the cores. The major lithology of all four cores is a quartz-rich, chert-bearing, medium-grained sand. Organic material, including grasses, seed pods, and reworked coal fragments, was observed in some intervals as laminae or as dispersed material. XRD and petrographic analyses indicate quartz is the dominant mineral in every core, though some of the AMS dates on organic laminae in the cores fit with paleoecological reconstructions from the site relating to wetland succession. Though the modern Lake Q is a lacustrine environment, likely formed via thermokarst processes, its underlying sediment is fluvially reworked marine sand. Our analyses indicate that these sediments are part of the Gubik Formation, a Quaternary age sedimentary formation blanketing much of the ANS and representing a variety of depositional environments, including nearshore marine, fluvial, lacustrine, eolian, thermokarst, and glacial. Methane ebullition, resulting from wetlands initiation approximately 12,000 cal yr BP, appears to have winnowed fine-grained organic material from the active seep sediments. The resulting coarse-grained and moderately well-sorted seep sediments are an unrestricted conduit that facilitates the gas and fluid flux to the lake and atmosphere. JF - American Geophysical Union Fall Meeting AU - Disenhof, C R AU - Rose, Kelly AU - Wooller, M AU - Pohlman, J AU - Littlefield, Kyle V AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41B EP - 0806 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - permafrost KW - methane KW - North Slope KW - gas hydrates KW - lakes KW - aliphatic hydrocarbons KW - karst KW - alkanes KW - temperature KW - organic compounds KW - thermokarst KW - hydrocarbons KW - Alaska KW - greenhouse gases KW - active layer KW - taliks KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Role+of+lithology+in+methane+flux+from+an+Alaskan+thermokarst+lake&rft.au=Disenhof%2C+C+R%3BRose%2C+Kelly%3BWooller%2C+M%3BPohlman%2C+J%3BLittlefield%2C+Kyle+V%3BAnonymous&rft.aulast=Disenhof&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - active layer; Alaska; aliphatic hydrocarbons; alkanes; gas hydrates; greenhouse gases; hydrocarbons; hydrology; karst; lakes; methane; North Slope; organic compounds; permafrost; taliks; temperature; thermokarst; United States ER - TY - JOUR T1 - Assessing the impact of CO (sub 2) and brine leakage on shallow groundwater quality; results from a natural analog study in New Mexico, USA AN - 1637533526; 2014-103339 AB - A vital aspect to public and regulatory acceptance of carbon sequestration is assurance that drinking water in overlying aquifers will be protected. Direct observations of CO (sub 2) flowing through shallow drinking water aquifers are invaluable for informing credible risk assessments. To this end, we have sampled shallow wells in a natural analog site in New Mexico, USA, where CO (sub 2) from natural sources is upwelling from depth, and have conducted laboratory experiments on aquifer sediments. Collectively, this work has generated insights into the processes controlling major ion and trace element geochemistry in a CO (sub 2) -rich system. One finding has been that impacts related to upwelling saline water far exceed those related to in-situ CO (sub 2) -induced trace metal mobilization. We have also developed 3-D reactive-transport simulations to represent the key aspects of this particular type of drinking water aquifer. In this paper we will summarize field and laboratory findings, and compare reactive-transport simulations with field data. We will then show how field-tested simulations can be used to predict the temporal evolution of shallow groundwater in hypothetical CO (sub 2) leakage scenarios. These simulations highlight the importance of transient, non-equilibrium effects. These effects should be carefully considered in risk assessments and monitoring network design. We conclude by presenting sensitivity analysis results showing the most important uncertain model parameters; these results can be used to guide future laboratory and field studies. JF - American Geophysical Union Fall Meeting AU - Keating, E H AU - Hakala, A AU - Viswanathan, H S AU - Carey, J W AU - Fessenden, J E AU - Pawar, R J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H32B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - carbon sequestration KW - pollution KW - New Mexico KW - hydrochemistry KW - drinking water KW - seepage KW - ground water KW - carbon dioxide KW - aquifers KW - sensitivity analysis KW - natural analogs KW - brines KW - risk assessment KW - water pollution KW - geochemistry KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637533526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessing+the+impact+of+CO+%28sub+2%29+and+brine+leakage+on+shallow+groundwater+quality%3B+results+from+a+natural+analog+study+in+New+Mexico%2C+USA&rft.au=Keating%2C+E+H%3BHakala%2C+A%3BViswanathan%2C+H+S%3BCarey%2C+J+W%3BFessenden%2C+J+E%3BPawar%2C+R+J%3BAnonymous&rft.aulast=Keating&rft.aufirst=E&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/10.1016%2Fj.physbeh.2014.11.032 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; brines; carbon dioxide; carbon sequestration; drinking water; geochemistry; ground water; hydrochemistry; natural analogs; New Mexico; pollution; risk assessment; seepage; sensitivity analysis; United States; water pollution; water quality ER - TY - JOUR T1 - Comparison of carbon dioxide solubility models in brine for use in carbon sequestration reservoir estimates AN - 1637533133; 2014-103380 AB - Carbon sequestration into deep geological formations, such as saline formations and oil and gas fields, is a promising method to mitigate global warming. Estimating carbon dioxide solubility (TPX) in brine under carbon sequestration conditions with high temperature, pressure and salinity is crucial in choosing suitable carbon sequestration reservoirs and determining the carbon dioxide storage capacity of each. Multiple mathematical models are available for predicting the solubility of CO (sub 2) in brine. Although comparisons of each model with a particular experimental data set collected under certain TPX conditions have been published by the model developers, few studies have been done to compare these models using a comprehensive experimental data set and rigorous statistical methods. In this study, available CO (sub 2) solubility experimental data and nine mathematical models for the prediction of CO (sub 2) solubility in brine were collected. Five of these predictive models are empirical or semi-empirical and the remainders are based on different equations of state. Statistical criteria, such as the AIC and BIC were employed to determine the goodness of fit of each mathematical model with the CO (sub 2) solubility experimental data set. Results of this analysis determine the best mathematical predictive model for the calculation of carbon dioxide solubility under carbon sequestration conditions. Preliminary analysis shows that simplified models with fewer variables perform equally well with those having more. The study also presents a quantitative approach to determine the best CO (sub 2) solubility predictive model through use of a regression tree. JF - American Geophysical Union Fall Meeting AU - Karamalidis, A AU - Wang, Z AU - Small, M AU - Dilmore, Robert M AU - Goodman, Angela L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33B EP - 1310 PB - American Geophysical Union, Washington, DC VL - 2011 KW - carbon sequestration KW - mathematical models KW - global change KW - solubility KW - salinity KW - oil and gas fields KW - climate change KW - carbon dioxide KW - models KW - mitigation KW - brines KW - reservoir properties KW - geochemistry KW - global warming KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637533133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Comparison+of+carbon+dioxide+solubility+models+in+brine+for+use+in+carbon+sequestration+reservoir+estimates&rft.au=Karamalidis%2C+A%3BWang%2C+Z%3BSmall%2C+M%3BDilmore%2C+Robert+M%3BGoodman%2C+Angela+L%3BAnonymous&rft.aulast=Karamalidis&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - brines; carbon dioxide; carbon sequestration; climate change; geochemistry; global change; global warming; mathematical models; mitigation; models; oil and gas fields; reservoir properties; salinity; solubility ER - TY - JOUR T1 - Development of the methodology needed to quantify risks to groundwater at CO (sub 2) storage sites AN - 1637532959; 2014-103371 AB - The National Risk Assessment Partnership (NRAP) is an effort that harnesses capabilities across five U.S. Department of Energy (DOE) national laboratories into a mission-focused platform to develop a defensible, science-based quantitative methodology for determining risk profiles at CO (sub 2) storage sites. NRAP is conducting risk and uncertainty analysis in the areas of reservoir performance, natural leakage pathways, wellbore integrity, groundwater protection, monitoring, and systems level modeling. The mission of NRAP is "to provide the scientific underpinning for risk assessment with respect to the long-term storage of CO (sub 2) , including assessment of residual risk associated with a site post-closure". Additionally, NRAP will develop a strategic, risk-based monitoring protocol, such that monitoring at all stages of a project effectively minimizes uncertainty in the predicted behavior of the site, thereby increasing confidence in storage integrity. NRAP's research focus in the area of groundwater protection is divided into three main tasks: 1) development of quantitative risk profiles for potential groundwater impacts; 2) filling key science gaps in developing those risk profiles; and 3) field-based confirmation. Within these three tasks, researchers are engaged in collaborative studies to determine metrics to identify system perturbation and their associated risk factors. Reservoir simulations are being performed to understand/predict consequences of hypothetical leakage scenarios, from which reduced order models are being developed to feed risk profile development. Both laboratory-based experiments and reactive transport modeling studies provide estimates of geochemical impacts over a broad range of leakage scenarios. This presentation will provide an overview of the research objectives within NRAP's groundwater protection focus area, as well as select accomplishments achieved to date. JF - American Geophysical Union Fall Meeting AU - Brown, Christopher F AU - Birkholzer, J T AU - Carroll, S AU - Hakala, A AU - Keating, E H AU - Lopano, Christina L AU - Newell, D L AU - Spycher, N AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33B EP - 1301 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - monitoring KW - carbon sequestration KW - underground storage KW - pollution KW - seepage KW - ground water KW - carbon dioxide KW - mitigation KW - underground installations KW - risk assessment KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637532959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Development+of+the+methodology+needed+to+quantify+risks+to+groundwater+at+CO+%28sub+2%29+storage+sites&rft.au=Brown%2C+Christopher+F%3BBirkholzer%2C+J+T%3BCarroll%2C+S%3BHakala%2C+A%3BKeating%2C+E+H%3BLopano%2C+Christina+L%3BNewell%2C+D+L%3BSpycher%2C+N%3BAnonymous&rft.aulast=Brown&rft.aufirst=Christopher&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; ground water; mitigation; monitoring; pollution; risk assessment; seepage; underground installations; underground storage; water pollution; water quality ER - TY - JOUR T1 - Change in fracture permeability after the flow-through of CO (sub 2) -acidified brine AN - 1629938403; 2014-092475 AB - In geologic storage of carbon dioxide (CO (sub 2) ), caprock seal integrity is paramount to successful long-term storage of the injected CO (sub 2) . Fractures in these caprocks, whether preexisting or newly created due to CO (sub 2) injection, may serve as leakage pathways for the injected CO (sub 2) . The hydrodynamic properties of these fractures, e.g. permeability and relative permeability, are primarily controlled by fracture geometries, aperture and roughness, which are subject to alteration caused by reactions between CO (sub 2) -acidified brine and minerals along the fracture faces. In this study, computational fluid dynamics simulations were performed on fracture geometries representing the initial and final conditions of an experiment in which a fractured carbonate caprock sample was exposed to CO (sub 2) -acidified brine flow. This experiment exhibited a net decrease in average fracture aperture. X-ray computed micro-tomography scans taken before and after the experiment were thresholded and used to reconstruct the fracture geometries. The generated meshes were refined and used in OpenFOAM for single-phase flow simulations to estimate intrinsic permeabilities. The simulation results carry important implications regarding the impact of geochemical reactions along the fracture pathway on hydrodynamic properties. Results from this study will provide important insights for leakage risk assessment of CO (sub 2) storage sites with potentially fractured caprocks. JF - American Geophysical Union Fall Meeting AU - Deng, H AU - Crandall, D AU - King, S AU - Ellis, B R AU - Bromhal, G S AU - Fitts, J P AU - Peters, C A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC51A EP - 0935 PB - American Geophysical Union, Washington, DC VL - 2011 KW - toxic materials KW - carbon sequestration KW - injection KW - pollution KW - fluid flow KW - preferential flow KW - fluid dynamics KW - seepage KW - reservoir rocks KW - ground water KW - geometry KW - carbon dioxide KW - fractures KW - transport KW - brines KW - cap rocks KW - acidification KW - greenhouse gases KW - permeability KW - dynamic properties KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629938403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Change+in+fracture+permeability+after+the+flow-through+of+CO+%28sub+2%29+-acidified+brine&rft.au=Deng%2C+H%3BCrandall%2C+D%3BKing%2C+S%3BEllis%2C+B+R%3BBromhal%2C+G+S%3BFitts%2C+J+P%3BPeters%2C+C+A%3BAnonymous&rft.aulast=Deng&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/GC/sessions/GC51A/abstracts/GC51A-0935.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - acidification; brines; cap rocks; carbon dioxide; carbon sequestration; dynamic properties; fluid dynamics; fluid flow; fractures; geometry; greenhouse gases; ground water; injection; permeability; pollution; preferential flow; reservoir rocks; seepage; toxic materials; transport ER - TY - CPAPER T1 - PC-SAFT modeling of the density of Krytox at pressures to 275 MPa and temperatures to 260DGC T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312926562; 6040466 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Bamgbade, Babatunde AU - Wu, Yue AU - McHugh, Mark AU - Baled, Hseen AU - Enick, Robert AU - Burgess, Ward AU - Tapriyal, Deepak AU - Morreale, Bryan Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - Temperature effects KW - Pressure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312926562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=PC-SAFT+modeling+of+the+density+of+Krytox+at+pressures+to+275+MPa+and+temperatures+to+260DGC&rft.au=Bamgbade%2C+Babatunde%3BWu%2C+Yue%3BMcHugh%2C+Mark%3BBaled%2C+Hseen%3BEnick%2C+Robert%3BBurgess%2C+Ward%3BTapriyal%2C+Deepak%3BMorreale%2C+Bryan&rft.aulast=Bamgbade&rft.aufirst=Babatunde&rft.date=2011-10-26&rft.volume=24&rft.issue=2&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Journal+of+Psychosomatic+Obstetrics+%26+Gynecology&rft.issn=0167482X&rft_id=info:doi/10.3109%2F01674820309042809 L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Extension of Reversible Carbon Dioxide Binding by Frustrated Lewis Pairs to Other Phosphine and Amine Bases T2 - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AN - 1313016609; 6079477 JF - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AU - Thompson, Robert AU - Hedges, Sheila AU - Krishnan, Damodaran Y1 - 2011/10/16/ PY - 2011 DA - 2011 Oct 16 KW - Amines KW - Carbon dioxide KW - amines KW - phosphine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313016609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.atitle=Extension+of+Reversible+Carbon+Dioxide+Binding+by+Frustrated+Lewis+Pairs+to+Other+Phosphine+and+Amine+Bases&rft.au=Thompson%2C+Robert%3BHedges%2C+Sheila%3BKrishnan%2C+Damodaran&rft.aulast=Thompson&rft.aufirst=Robert&rft.date=2011-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.aiche.org/conferences/annualmeeting/meetingprogram/2011topical.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Evaluation of Iron Based Oxygen Carriers for Chemical Looping Dry Reforming T2 - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AN - 1312974681; 6078946 JF - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AU - Bhavsar, Saurabh AU - Najera, Michelle AU - Veser, Gotz Y1 - 2011/10/16/ PY - 2011 DA - 2011 Oct 16 KW - Oxygen KW - Iron UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312974681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.atitle=Evaluation+of+Iron+Based+Oxygen+Carriers+for+Chemical+Looping+Dry+Reforming&rft.au=Bhavsar%2C+Saurabh%3BNajera%2C+Michelle%3BVeser%2C+Gotz&rft.aulast=Bhavsar&rft.aufirst=Saurabh&rft.date=2011-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.aiche.org/conferences/annualmeeting/meetingprogram/2011topical.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Subsurface drip irrigation application of coalbed methane produced waters; a three-way analysis of the impacts to shallow groundwater composition and storage AN - 1400616457; 2013-052975 AB - Since 1987, coalbed methane (CBM) production in the Wyoming portion of the Powder River basin has generated 1.2 X 10 (super 11) m (super 3) (4,240 bcf) of natural gas and 1.0 X 10 (super 9) m (super 3) (35.3 bcf) of co-produced water. Year-round introduction of the produced waters with potentially soil-damaging Na-rich composition into infiltration impoundments and ephemeral hydrologic systems have led to serious concerns related to the handling of the water. An alluvial aquifer site where treated Na-HCO (sub 3) - to Na-SO (sub 4) -type CBM water is added into the unsaturated zone ( approximately 0.9m depth) through the use of a subsurface drip irrigation (SDI) system has been studied to assess the impact to groundwater levels and composition. The SDI system is designed to provide water for alfalfa, which has roots that can reach the depth of the SDI emitters, whereas the Na-rich solutes are stored below the more Na-sensitive upper layers of the soil column. In the first two years of SDI operation, little net change in groundwater levels in wells outside of the SDI areas was observed, whereas groundwater levels have increased in some SDI areas of the site by more than 0.6 m. Changes in groundwater specific conductance, an indicator of solute load, have varied substantially, with both increasing and decreasing trends observed within SDI and non-SDI wells. To better understand the nature of these changes, concentration data (Ba, Cl, Fe, HCO (sub 3) , H (sub 2) O, Mg, Na, Si, SO (sub 4) , and Sr) for water samples collected from 14 monitoring wells during eight rounds of quarterly groundwater sampling were arranged in a three-way array (wells x constituents x sampling events). Because the focus of this study is the chemical composition of groundwater samples, analyses focused on the molar proportions of the chemical constituents, rather than the raw molar concentration data. In attempt to find underlying multivariate structure and to identify processes controlling the data, the three-way array was examined using the recently developed Tucker models for compositional data. Results from this investigation show the potential controls and impacts of SDI application of CBM waters on a shallow groundwater system. JF - Abstracts with Programs - Geological Society of America AU - Engle, Mark A AU - Gallo, Michele AU - Sams, James AU - Zupancic, John AU - Schroeder, Karl AU - Geboy, Nicholas J AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 498 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - natural gas KW - petroleum KW - irrigation KW - ground water KW - multivariate analysis KW - levels KW - chemical composition KW - geochemistry KW - Powder River basin KW - sulfate ion KW - statistical analysis KW - alkali metals KW - sodium KW - bicarbonate ion KW - hydrochemistry KW - samples KW - aquifers KW - models KW - Wyoming KW - metals KW - infiltration KW - coalbed methane KW - shallow aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400616457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Subsurface+drip+irrigation+application+of+coalbed+methane+produced+waters%3B+a+three-way+analysis+of+the+impacts+to+shallow+groundwater+composition+and+storage&rft.au=Engle%2C+Mark+A%3BGallo%2C+Michele%3BSams%2C+James%3BZupancic%2C+John%3BSchroeder%2C+Karl%3BGeboy%2C+Nicholas+J%3BAnonymous&rft.aulast=Engle&rft.aufirst=Mark&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=498&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkali metals; aquifers; bicarbonate ion; chemical composition; coalbed methane; geochemistry; ground water; hydrochemistry; infiltration; irrigation; levels; metals; models; multivariate analysis; natural gas; petroleum; Powder River basin; samples; shallow aquifers; sodium; statistical analysis; sulfate ion; United States; Wyoming ER - TY - JOUR T1 - Stable isotope fingerprinting of co-produced waters associated with Marcellus Shale natural gas extraction AN - 1351595639; 2013-039539 AB - The main concern associated with Marcellus Shale gas development is that water co-produced as a result of hydraulic fracking can potentially compromise the water quality of surface waters and fresh water aquifers of the region. In order to assess the effect of Marcellus Shale development on water quality, there is a need to develop tools that can be used to track the source and fate of these highly saline waters co-produced as a result of shale gas extraction. In the area of Marcellus Shale development, the co-produced water can have similar chemical constituents found in saline formations and/or coal mines originating from several thousand acres of abandoned coal mines or deep coal mines in this region. Hence, it can be difficult to decouple the contribution of co-produced water from coal mine waters and/or saline formation waters to the surface waters and aquifers based on the general geochemical characteristics alone. We tested the applicability of a multiple stable isotope approach to distinguish different water sources in an area of accelerating shale gas development. Water samples were collected from fresh surface waters, coal mine discharges and co-produced water from a Marcellus well in Pennsylvania. Preliminary data shows that O and H isotopic composition of water (delta (super 18) O (sub H2O) and delta D (sub H2O) ), C isotope composition dissolved inorganic carbon (delta (super 13) C (sub DIC) ), and S and O isotope composition of dissolved sulfate (delta (super 34) S (sub SO4) and delta (super 18) O (sub SO4) ) of different end-members are very distinct. The isotopic variations most likely originate due to the variations in water-rock interactions, recharge sources, recharge pathways, and age of the waters. These distinctions may be used to fingerprint different water sources in this area. JF - Abstracts with Programs - Geological Society of America AU - Sharma, Shikha AU - Mulder, Michon L AU - Edenborn, Harry M AU - Hammack, Richard W AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 566 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - oxygen KW - development KW - isotopes KW - natural gas KW - petroleum KW - stable isotopes KW - ground water KW - sedimentary rocks KW - Marcellus Shale KW - abandoned mines KW - hydraulic fracturing KW - mines KW - Paleozoic KW - isotope ratios KW - coal mines KW - gas shale KW - O-18/O-16 KW - recharge KW - Middle Devonian KW - Devonian KW - S-34/S-32 KW - D/H KW - hydrogen KW - sulfur KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1351595639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Stable+isotope+fingerprinting+of+co-produced+waters+associated+with+Marcellus+Shale+natural+gas+extraction&rft.au=Sharma%2C+Shikha%3BMulder%2C+Michon+L%3BEdenborn%2C+Harry+M%3BHammack%2C+Richard+W%3BAnonymous&rft.aulast=Sharma&rft.aufirst=Shikha&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=566&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-16 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; coal mines; D/H; development; Devonian; gas shale; ground water; hydraulic fracturing; hydrogen; isotope ratios; isotopes; Marcellus Shale; Middle Devonian; mines; natural gas; O-18/O-16; oxygen; Paleozoic; petroleum; recharge; S-34/S-32; sedimentary rocks; stable isotopes; sulfur; United States ER - TY - JOUR T1 - The successful development of shale gas resources in the United States AN - 1351595402; 2013-039533 AB - In response to the price hikes and shortages caused by the 1973-1974 oil embargo, the U.S. Energy Research and Development Administration set out to find technological solutions to the "energy crisis," which included the development of new, domestic sources of oil and natural gas. The goal of the Eastern Gas Shales Project (EGSP) was to assess the technical challenges of recovering natural gas from extensive, organic-rich, Devonian-age shales in the Eastern United States. This program became the responsibility of the U.S. Department of Energy when it was created in August 1977. The major components of the EGSP were resource characterization and inventory, the development of extraction technology, and transfer of that technology to industry. From 1976 to 1982, the EGSP used cooperative agreements with drillers to collect and characterize oriented core from 38 wells targeting a variety of Devonian shales in the Appalachian, Michigan and Illinois Basins. Marcellus Shale core from an EGSP well drilled in 1978 in Morgantown, WV was analyzed by the Institute of Gas Technology in 1986. Results suggested that this shale was capable of containing much more gas than had been previously estimated, and that the resource might be quite large. Shale gas development awaited improved production techniques. Mitchell Energy had been experimenting on the Barnett Shale in the Fort Worth Basin since the early 1980s, finally beginning successful shale gas production in 1997 from horizontal wells that used directional drilling technology and staged hydraulic fracturing. The Fayetteville and Haynesville Shales in Arkansas were recognized as sharing many of the same gas productive characteristics as the Barnett Shale, leading to the subsequent development of these formations. Range Resources drilled the Renz #1 well in Washington Co, PA in 2004 to test Ordovician prospects. The target unit had poor gas shows, but evidence of gas in the overlying Marcellus led Range to review DOE reports on shale gas, and then hydraulically fracture the Marcellus in Renz #1. After getting an initial production of 300,000 cubic feet per day, Range drilled and stimulated the first horizontal well in the shale in 2005. Gulla #9 had an initial production of 4 million cubic feet per day. Other Marcellus wells soon followed, developing the play remarkably within five years. JF - Abstracts with Programs - Geological Society of America AU - Soeder, Daniel AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 565 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - resources KW - Mississippian KW - technology KW - well stimulation KW - Haynesville Formation KW - development KW - Washington County Pennsylvania KW - Eastern Gas Shales Project KW - Barnett Shale KW - Michigan Basin KW - production KW - Ordovician KW - sedimentary rocks KW - Appalachian Basin KW - Marcellus Shale KW - Upper Mississippian KW - hydraulic fracturing KW - North America KW - Illinois Basin KW - Upper Jurassic KW - Jurassic KW - Fort Worth Basin KW - Paleozoic KW - Carboniferous KW - Texas KW - gas shale KW - Mesozoic KW - Middle Devonian KW - Devonian KW - Pennsylvania KW - Fayetteville Formation KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1351595402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+successful+development+of+shale+gas+resources+in+the+United+States&rft.au=Soeder%2C+Daniel%3BAnonymous&rft.aulast=Soeder&rft.aufirst=Daniel&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=565&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-16 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Appalachian Basin; Barnett Shale; Carboniferous; development; Devonian; Eastern Gas Shales Project; Fayetteville Formation; Fort Worth Basin; gas shale; Haynesville Formation; hydraulic fracturing; Illinois Basin; Jurassic; Marcellus Shale; Mesozoic; Michigan Basin; Middle Devonian; Mississippian; North America; Ordovician; Paleozoic; Pennsylvania; production; resources; sedimentary rocks; technology; Texas; United States; Upper Jurassic; Upper Mississippian; Washington County Pennsylvania; well stimulation ER - TY - JOUR T1 - Bayesian hierarchical models for soil CO (sub 2) flux and leak detection at geologic sequestration sites AN - 1015462430; 2012-049349 AB - Proper characterizations of background soil CO (sub 2) respiration rates are critical for interpreting CO (sub 2) leakage monitoring results at geologic sequestration sites. In this paper, a method is developed for determining temperature-dependent critical values of soil CO (sub 2) flux for preliminary leak detection inference. The method is illustrated using surface CO (sub 2) flux measurements obtained from the AmeriFlux network fit with alternative models for the soil CO (sub 2) flux versus soil temperature relationship. The models are fit first to determine pooled parameter estimates across the sites, then using a Bayesian hierarchical method to obtain both global and site-specific parameter estimates. Model comparisons are made using the deviance information criterion (DIC), which considers both goodness of fit and model complexity. The hierarchical models consistently outperform the corresponding pooled models, demonstrating the need for site-specific data and estimates when determining relationships for background soil respiration. A hierarchical model that relates the square root of the CO (sub 2) flux to a quadratic function of soil temperature is found to provide the best fit for the AmeriFlux sites among the models tested. This model also yields effective prediction intervals, consistent with the upper envelope of the flux data across the modeled sites and temperature ranges. Calculation of upper prediction intervals using the proposed method can provide a basis for setting critical values in CO (sub 2) leak detection monitoring at sequestration sites. Copyright 2011 Springer-Verlag JF - Environmental Earth Sciences AU - Yang, Ya-Mei AU - Small, Mitchell J AU - Junker, Brian AU - Bromhal, Grant S AU - Strazisar, Brian AU - Wells, Arthur Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 787 EP - 798 PB - Springer, Berlin VL - 64 IS - 3 SN - 1866-6280, 1866-6280 KW - respiration KW - soil mechanics KW - monitoring KW - carbon sequestration KW - numerical models KW - Bayesian analysis KW - statistical analysis KW - injection KW - characterization KW - prediction KW - pollution KW - preferential flow KW - seepage KW - measurement KW - carbon dioxide KW - detection KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015462430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Bayesian+hierarchical+models+for+soil+CO+%28sub+2%29+flux+and+leak+detection+at+geologic+sequestration+sites&rft.au=Yang%2C+Ya-Mei%3BSmall%2C+Mitchell+J%3BJunker%2C+Brian%3BBromhal%2C+Grant+S%3BStrazisar%2C+Brian%3BWells%2C+Arthur&rft.aulast=Yang&rft.aufirst=Ya-Mei&rft.date=2011-10-01&rft.volume=64&rft.issue=3&rft.spage=787&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-011-0903-5 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Bayesian analysis; carbon dioxide; carbon sequestration; characterization; detection; injection; measurement; monitoring; numerical models; pollution; prediction; preferential flow; respiration; seepage; soil mechanics; statistical analysis DO - http://dx.doi.org/10.1007/s12665-011-0903-5 ER - TY - JOUR T1 - New and innovative drilling technologies AN - 1011394617; 2012-045310 AB - The LM-300 was a "purpose built" drilling system specifically designed to accomplish demanding geoscientific and hydrologic studies associated with Site Characterization of the vadose zone at Yucca Mountain, Nevada. The system had to be able to reach a depth of approximately 2,000', core the entire interval, leave a 12-1/4" borehole suitable for hydrologic testing, and introduce no contaminants, such as drilling mud, into the environment. Air was also considered a contaminant since its water content was different than that in the in situ hydrologic system. To achieve this "first of a kind" level of minimum drilling impact, a dual-wall drilling system was utilized that allowed high pressure air injection and a vacuum return up the center of the drill-pipe to pull cuttings and air to the surface. Another mitigation feature included cooling of the compressed air for coring and sending it through a separator in order to ensure the core did not become saturated from condensed water. The manufacturer, Lang Exploratory Drilling, built and commercialized a rig similar to the LM-300 for rapidly drilling dewatering holes for the mining industry. With the advent of the "Unconventional Era" in oil and gas, exploration success is now all about site characterization. Further commercialization efforts have been successful using the same "purpose built" approach to rig design as the LM-300. DOE's National Energy Technology Laboratory (NETL) funded the first demonstration of hybrid coiled tubing drilling systems in the lower 48 U.S. The result of that demonstration was the commercialization of over 1 Tcf of shallow tight gas in the Niobrara Formation of western Kansas and eastern Colorado. Coiled tubing drilling is now rapidly penetrating gas shale markets in the U.S.. The use of small "purpose built" coiled tubing drilling rigs also continues to be a key enabler to the future of high resolution seismic, permanently installed state-of-art geophones for micro-seismic monitoring and active seismic using "downward looking VSP" technology also demonstrated by NETL. JF - Abstracts with Programs - Geological Society of America AU - Long, Roy C AU - Soeder, Dan AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 196 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - petroleum exploration KW - petroleum engineering KW - site exploration KW - petroleum KW - Nye County Nevada KW - evaluation KW - case studies KW - drilling KW - Yucca Mountain KW - Nevada KW - instruments KW - design KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=New+and+innovative+drilling+technologies&rft.au=Long%2C+Roy+C%3BSoeder%2C+Dan%3BAnonymous&rft.aulast=Long&rft.aufirst=Roy&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=196&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_193581.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - case studies; design; drilling; evaluation; instruments; Nevada; Nye County Nevada; petroleum; petroleum engineering; petroleum exploration; site exploration; United States; Yucca Mountain ER - TY - JOUR T1 - Mineralogy and geochemistry of Arbuckle saline aquifer in south central Kansas and implications for CO (sub 2) sequestration AN - 1008815808; 2012-037100 JF - Abstracts with Programs - Geological Society of America AU - Barker, Robinson AU - Watney, W Lynn AU - Bhattacharya, Saibal AU - Strazisar, Brian AU - Kelly, Logan AU - Ford, Sophia AU - Datta, Saugata AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 126 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - limestone KW - hydrology KW - aquifer vulnerability KW - carbon sequestration KW - Paleozoic KW - salinity KW - ground water KW - carbon dioxide KW - Arbuckle Group KW - aquifers KW - sedimentary rocks KW - mineral composition KW - Kansas KW - chemical composition KW - carbonate rocks KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Mineralogy+and+geochemistry+of+Arbuckle+saline+aquifer+in+south+central+Kansas+and+implications+for+CO+%28sub+2%29+sequestration&rft.au=Barker%2C+Robinson%3BWatney%2C+W+Lynn%3BBhattacharya%2C+Saibal%3BStrazisar%2C+Brian%3BKelly%2C+Logan%3BFord%2C+Sophia%3BDatta%2C+Saugata%3BAnonymous&rft.aulast=Barker&rft.aufirst=Robinson&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_194735.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America; 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; Arbuckle Group; carbon dioxide; carbon sequestration; carbonate rocks; chemical composition; ground water; hydrology; Kansas; limestone; mineral composition; Paleozoic; salinity; sedimentary rocks; United States ER - TY - JOUR T1 - Calibration strategy for semi-quantitative direct gas analysis using inductively coupled plasma mass spectrometry AN - 1221142132; 16107941 AB - A process is described by which an ICP-MS equipped with an Octopole Reaction System (ORS) is calibrated using liquid phase standards to facilitate direct analysis of gas phase samples. The instrument response to liquid phase standards is analyzed to produce empirical factors relating ion generation and transmission efficiencies to standard operating parameters. Empirical factors generated for liquid phase samples are then used to produce semi-quantitative analysis of both mixed liquid/gas samples and pure gas samples. The method developed is similar to the semi-quantitative analysis algorithms in the commercial software, which have here been expanded to include gas phase elements such as Xe and Kr. Equations for prediction of relative ionization efficiencies and isotopic transmission are developed for several combinations of plasma operating conditions, which allows adjustment of limited parameters between liquid and gas injection modes. In particular, the plasma temperature and electron density are calculated from comparison of experimental results to the predictions of the Saha equation. Comparisons between operating configurations are made to determine the robustness of the analysis to plasma conditions and instrument operating parameters. Using the methods described in this research, the elemental concentrations in a liquid standard containing 45 analytes and treated as an unknown sample were quantified accurately to +/-50% for most elements using 133Cs as a single internal reference. The method is used to predict liquid phase mercury within 12% of the actual concentration and gas phase mercury within 28% of the actual concentration. The results verify that the calibration method facilitates accurate semi-quantitative, gas phase analysis of metal species with sufficient sensitivity to quantify metal concentrations lower than 1ppb for many metallic analytes. JF - Spectrochimica Acta Part B Atomic Spectroscopy AU - Gerdes, Kirk AU - Carter, Kimberly E AD - National Energy Technology Laboratory, Morgantown, WV 26507, United States, Kirk.Gerdes@NETL.DOE.GOV Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 712 EP - 725 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 66 IS - 9-10 SN - 0584-8547, 0584-8547 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Inductively coupled plasma KW - Gas phase analysis with ICP-MS KW - Direct gas phase analysis KW - ICP/MS KW - Prediction KW - Metals KW - Mass Spectrometry KW - Mathematical models KW - Instrument responses KW - Density KW - Algorithms KW - Metal Concentration KW - Mass spectroscopy KW - Calibrations KW - Mercury KW - Standards KW - Ionization KW - SW 5010:Network design KW - AQ 00008:Effects of Pollution KW - Q5 08502:Methods and instruments KW - Q2 09388:Ocean operations and safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1221142132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.atitle=Calibration+strategy+for+semi-quantitative+direct+gas+analysis+using+inductively+coupled+plasma+mass+spectrometry&rft.au=Gerdes%2C+Kirk%3BCarter%2C+Kimberly+E&rft.aulast=Gerdes&rft.aufirst=Kirk&rft.date=2011-09-01&rft.volume=66&rft.issue=9-10&rft.spage=712&rft.isbn=&rft.btitle=&rft.title=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.issn=05848547&rft_id=info:doi/10.1016%2Fj.sab.2011.09.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-11-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Mathematical models; Instrument responses; Mercury; Mass spectroscopy; Metal Concentration; Prediction; Mass Spectrometry; Metals; Calibrations; Density; Algorithms; Standards; Ionization DO - http://dx.doi.org/10.1016/j.sab.2011.09.007 ER - TY - RPRT T1 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. [Part 3 of 22] T2 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. AN - 888700702; 15006-6_0003 AB - PURPOSE: The provision of $450 million in federal financial assistance for the planning, design, and construction of the Texas Clean Energy Project (TCEP) 15 miles southwest of the city of Odessa in Ector County, Texas is proposed. The TCEP would use coal-based integrated gasification combined-cycle technology to generate 400 megawatts (MW) of electricity, and would capture carbon dioxide (CO2) for use in enhanced oil recovery (EOR) and eventual geologic sequestration. It would also produce urea, argon, and sulfuric acid for sale in commercial markets. Summit Texas Clean Energy, LLC (Summit) would build the poly-generation (polygen) plant on a 600-acre site adjacent to the community of Penwell and north of Interstate 20 along a Union Pacific Railroad line. The plant would be designed and constructed to capture approximately 90 percent of its CO2. During the demonstration phase of operations, the project would sequester 2.5 to 3 million tons of CO2 per year by transporting it in pipelines to existing oil fields in the Permian Basin of West Texas for use in EOR operations by third-party buyers of the CO2. Following a three-year testing and operation demonstration phase, the polygen plant would continue in commercial operation for 30 to 50 years. The TCEP would consist of the polygen plant and linear facilities, including an electric transmission line, one or more process waterlines, a natural gas pipeline, a CO2 pipeline connector, a rail line connector, and two access roads that would connect the plant to existing roads. This final EIS evaluates the proposed project, operational options that Summit is considering (four waterline options and six transmission line interconnection options), and a No Action Alternative. The Department of Energy's preferred alternative is to provide financial assistance for Summit's proposed project. The assistance would amount to approximately 26 percent of the project's total capital cost of at least $1.73 billion (2009 dollars) and would be provided on a costshare basis. POSITIVE IMPACTS: The TCEP would generate up to 1.7 billion net kilowatt-hours of electricity per year for delivery to the electric grid while also benefiting the recovery of oil and gas in portions of the Permian Basin. Implementation would demonstrate the commercial-readiness of clean coal technologies fully integrated with a polygen plant. NEGATIVE IMPACTS: Construction would result in the permanent loss of up to 600 acres of mesquite shrub-grassland vegetation and its associated habitat functions for terrestrial species, including Texas horned lizard and 11 state-listed rare species. Direct impacts to air quality would result from construction activities and stationary source emissions (combustion turbine, flare, gasifier, cooling towers, sulfur recovery system, and coal handling) during project operations. Incremental increases of constituents would be up to nine percent for particulate matter with diameter equal to or less than 10 micrometers and up to 200 percent for nitrogen dioxide at the points of maximum impact. An estimated 0.02 ton of mercury emissions per year would be produced and non-captured CO2 emissions from operations would be approximately 300,000 tons per year. Ground water quality impacts could result from the limited potential for upward migration of CO2 or displacement of native fluids. High-intensity lighting would have adverse impacts on night sky viewing conditions. LEGAL MANDATES: American Recovery and Reinvestment Act of 2009 (P.L. 111-5) and Energy Policy Act of 2005 (P.L. 109-58). JF - EPA number: 110246, Final EIS--740 pages, Responses to Comments--162 pages, August 5, 2011 PY - 2011 VL - 3 KW - Energy KW - Agency number: DOE/EIS-0444 KW - Acids KW - Carbon Dioxide KW - Coal KW - Coal Gasification KW - Cooling Systems KW - Electric Power KW - Emission Control KW - Emissions KW - Nitrogen Oxides KW - Particulates KW - Pipelines KW - Power Plants KW - Steam Generators KW - Storage KW - Transmission Lines KW - Turbines KW - Vegetation KW - Wildlife Habitat KW - Texas KW - American Recovery and Reinvestment Act of 2009, Funding KW - Energy Policy Act of 2005, Funding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888700702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Full+Text&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-08-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.title=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - Department of Energy, National Energy Technology Laboratory, Morgantown, West Virginia; DOE N1 - Date revised - 2011-08-01 N1 - SuppNotes - Final. Preparation date: August 5, 2011 N1 - Last updated - 2011-12-16 ER - TY - RPRT T1 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. [Part 6 of 22] T2 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. AN - 888700558; 15006-6_0006 AB - PURPOSE: The provision of $450 million in federal financial assistance for the planning, design, and construction of the Texas Clean Energy Project (TCEP) 15 miles southwest of the city of Odessa in Ector County, Texas is proposed. The TCEP would use coal-based integrated gasification combined-cycle technology to generate 400 megawatts (MW) of electricity, and would capture carbon dioxide (CO2) for use in enhanced oil recovery (EOR) and eventual geologic sequestration. It would also produce urea, argon, and sulfuric acid for sale in commercial markets. Summit Texas Clean Energy, LLC (Summit) would build the poly-generation (polygen) plant on a 600-acre site adjacent to the community of Penwell and north of Interstate 20 along a Union Pacific Railroad line. The plant would be designed and constructed to capture approximately 90 percent of its CO2. During the demonstration phase of operations, the project would sequester 2.5 to 3 million tons of CO2 per year by transporting it in pipelines to existing oil fields in the Permian Basin of West Texas for use in EOR operations by third-party buyers of the CO2. Following a three-year testing and operation demonstration phase, the polygen plant would continue in commercial operation for 30 to 50 years. The TCEP would consist of the polygen plant and linear facilities, including an electric transmission line, one or more process waterlines, a natural gas pipeline, a CO2 pipeline connector, a rail line connector, and two access roads that would connect the plant to existing roads. This final EIS evaluates the proposed project, operational options that Summit is considering (four waterline options and six transmission line interconnection options), and a No Action Alternative. The Department of Energy's preferred alternative is to provide financial assistance for Summit's proposed project. The assistance would amount to approximately 26 percent of the project's total capital cost of at least $1.73 billion (2009 dollars) and would be provided on a costshare basis. POSITIVE IMPACTS: The TCEP would generate up to 1.7 billion net kilowatt-hours of electricity per year for delivery to the electric grid while also benefiting the recovery of oil and gas in portions of the Permian Basin. Implementation would demonstrate the commercial-readiness of clean coal technologies fully integrated with a polygen plant. NEGATIVE IMPACTS: Construction would result in the permanent loss of up to 600 acres of mesquite shrub-grassland vegetation and its associated habitat functions for terrestrial species, including Texas horned lizard and 11 state-listed rare species. Direct impacts to air quality would result from construction activities and stationary source emissions (combustion turbine, flare, gasifier, cooling towers, sulfur recovery system, and coal handling) during project operations. Incremental increases of constituents would be up to nine percent for particulate matter with diameter equal to or less than 10 micrometers and up to 200 percent for nitrogen dioxide at the points of maximum impact. An estimated 0.02 ton of mercury emissions per year would be produced and non-captured CO2 emissions from operations would be approximately 300,000 tons per year. Ground water quality impacts could result from the limited potential for upward migration of CO2 or displacement of native fluids. High-intensity lighting would have adverse impacts on night sky viewing conditions. LEGAL MANDATES: American Recovery and Reinvestment Act of 2009 (P.L. 111-5) and Energy Policy Act of 2005 (P.L. 109-58). JF - EPA number: 110246, Final EIS--740 pages, Responses to Comments--162 pages, August 5, 2011 PY - 2011 VL - 6 KW - Energy KW - Agency number: DOE/EIS-0444 KW - Acids KW - Carbon Dioxide KW - Coal KW - Coal Gasification KW - Cooling Systems KW - Electric Power KW - Emission Control KW - Emissions KW - Nitrogen Oxides KW - Particulates KW - Pipelines KW - Power Plants KW - Steam Generators KW - Storage KW - Transmission Lines KW - Turbines KW - Vegetation KW - Wildlife Habitat KW - Texas KW - American Recovery and Reinvestment Act of 2009, Funding KW - Energy Policy Act of 2005, Funding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888700558?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Full+Text&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-08-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.title=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - Department of Energy, National Energy Technology Laboratory, Morgantown, West Virginia; DOE N1 - Date revised - 2011-08-01 N1 - SuppNotes - Final. Preparation date: August 5, 2011 N1 - Last updated - 2011-12-16 ER - TY - RPRT T1 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. [Part 5 of 22] T2 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. AN - 888700554; 15006-6_0005 AB - PURPOSE: The provision of $450 million in federal financial assistance for the planning, design, and construction of the Texas Clean Energy Project (TCEP) 15 miles southwest of the city of Odessa in Ector County, Texas is proposed. The TCEP would use coal-based integrated gasification combined-cycle technology to generate 400 megawatts (MW) of electricity, and would capture carbon dioxide (CO2) for use in enhanced oil recovery (EOR) and eventual geologic sequestration. It would also produce urea, argon, and sulfuric acid for sale in commercial markets. Summit Texas Clean Energy, LLC (Summit) would build the poly-generation (polygen) plant on a 600-acre site adjacent to the community of Penwell and north of Interstate 20 along a Union Pacific Railroad line. The plant would be designed and constructed to capture approximately 90 percent of its CO2. During the demonstration phase of operations, the project would sequester 2.5 to 3 million tons of CO2 per year by transporting it in pipelines to existing oil fields in the Permian Basin of West Texas for use in EOR operations by third-party buyers of the CO2. Following a three-year testing and operation demonstration phase, the polygen plant would continue in commercial operation for 30 to 50 years. The TCEP would consist of the polygen plant and linear facilities, including an electric transmission line, one or more process waterlines, a natural gas pipeline, a CO2 pipeline connector, a rail line connector, and two access roads that would connect the plant to existing roads. This final EIS evaluates the proposed project, operational options that Summit is considering (four waterline options and six transmission line interconnection options), and a No Action Alternative. The Department of Energy's preferred alternative is to provide financial assistance for Summit's proposed project. The assistance would amount to approximately 26 percent of the project's total capital cost of at least $1.73 billion (2009 dollars) and would be provided on a costshare basis. POSITIVE IMPACTS: The TCEP would generate up to 1.7 billion net kilowatt-hours of electricity per year for delivery to the electric grid while also benefiting the recovery of oil and gas in portions of the Permian Basin. Implementation would demonstrate the commercial-readiness of clean coal technologies fully integrated with a polygen plant. NEGATIVE IMPACTS: Construction would result in the permanent loss of up to 600 acres of mesquite shrub-grassland vegetation and its associated habitat functions for terrestrial species, including Texas horned lizard and 11 state-listed rare species. Direct impacts to air quality would result from construction activities and stationary source emissions (combustion turbine, flare, gasifier, cooling towers, sulfur recovery system, and coal handling) during project operations. Incremental increases of constituents would be up to nine percent for particulate matter with diameter equal to or less than 10 micrometers and up to 200 percent for nitrogen dioxide at the points of maximum impact. An estimated 0.02 ton of mercury emissions per year would be produced and non-captured CO2 emissions from operations would be approximately 300,000 tons per year. Ground water quality impacts could result from the limited potential for upward migration of CO2 or displacement of native fluids. High-intensity lighting would have adverse impacts on night sky viewing conditions. LEGAL MANDATES: American Recovery and Reinvestment Act of 2009 (P.L. 111-5) and Energy Policy Act of 2005 (P.L. 109-58). JF - EPA number: 110246, Final EIS--740 pages, Responses to Comments--162 pages, August 5, 2011 PY - 2011 VL - 5 KW - Energy KW - Agency number: DOE/EIS-0444 KW - Acids KW - Carbon Dioxide KW - Coal KW - Coal Gasification KW - Cooling Systems KW - Electric Power KW - Emission Control KW - Emissions KW - Nitrogen Oxides KW - Particulates KW - Pipelines KW - Power Plants KW - Steam Generators KW - Storage KW - Transmission Lines KW - Turbines KW - Vegetation KW - Wildlife Habitat KW - Texas KW - American Recovery and Reinvestment Act of 2009, Funding KW - Energy Policy Act of 2005, Funding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888700554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Full+Text&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-08-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.title=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - Department of Energy, National Energy Technology Laboratory, Morgantown, West Virginia; DOE N1 - Date revised - 2011-08-01 N1 - SuppNotes - Final. Preparation date: August 5, 2011 N1 - Last updated - 2011-12-16 ER - TY - RPRT T1 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. [Part 4 of 22] T2 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. AN - 888700549; 15006-6_0004 AB - PURPOSE: The provision of $450 million in federal financial assistance for the planning, design, and construction of the Texas Clean Energy Project (TCEP) 15 miles southwest of the city of Odessa in Ector County, Texas is proposed. The TCEP would use coal-based integrated gasification combined-cycle technology to generate 400 megawatts (MW) of electricity, and would capture carbon dioxide (CO2) for use in enhanced oil recovery (EOR) and eventual geologic sequestration. It would also produce urea, argon, and sulfuric acid for sale in commercial markets. Summit Texas Clean Energy, LLC (Summit) would build the poly-generation (polygen) plant on a 600-acre site adjacent to the community of Penwell and north of Interstate 20 along a Union Pacific Railroad line. The plant would be designed and constructed to capture approximately 90 percent of its CO2. During the demonstration phase of operations, the project would sequester 2.5 to 3 million tons of CO2 per year by transporting it in pipelines to existing oil fields in the Permian Basin of West Texas for use in EOR operations by third-party buyers of the CO2. Following a three-year testing and operation demonstration phase, the polygen plant would continue in commercial operation for 30 to 50 years. The TCEP would consist of the polygen plant and linear facilities, including an electric transmission line, one or more process waterlines, a natural gas pipeline, a CO2 pipeline connector, a rail line connector, and two access roads that would connect the plant to existing roads. This final EIS evaluates the proposed project, operational options that Summit is considering (four waterline options and six transmission line interconnection options), and a No Action Alternative. The Department of Energy's preferred alternative is to provide financial assistance for Summit's proposed project. The assistance would amount to approximately 26 percent of the project's total capital cost of at least $1.73 billion (2009 dollars) and would be provided on a costshare basis. POSITIVE IMPACTS: The TCEP would generate up to 1.7 billion net kilowatt-hours of electricity per year for delivery to the electric grid while also benefiting the recovery of oil and gas in portions of the Permian Basin. Implementation would demonstrate the commercial-readiness of clean coal technologies fully integrated with a polygen plant. NEGATIVE IMPACTS: Construction would result in the permanent loss of up to 600 acres of mesquite shrub-grassland vegetation and its associated habitat functions for terrestrial species, including Texas horned lizard and 11 state-listed rare species. Direct impacts to air quality would result from construction activities and stationary source emissions (combustion turbine, flare, gasifier, cooling towers, sulfur recovery system, and coal handling) during project operations. Incremental increases of constituents would be up to nine percent for particulate matter with diameter equal to or less than 10 micrometers and up to 200 percent for nitrogen dioxide at the points of maximum impact. An estimated 0.02 ton of mercury emissions per year would be produced and non-captured CO2 emissions from operations would be approximately 300,000 tons per year. Ground water quality impacts could result from the limited potential for upward migration of CO2 or displacement of native fluids. High-intensity lighting would have adverse impacts on night sky viewing conditions. LEGAL MANDATES: American Recovery and Reinvestment Act of 2009 (P.L. 111-5) and Energy Policy Act of 2005 (P.L. 109-58). JF - EPA number: 110246, Final EIS--740 pages, Responses to Comments--162 pages, August 5, 2011 PY - 2011 VL - 4 KW - Energy KW - Agency number: DOE/EIS-0444 KW - Acids KW - Carbon Dioxide KW - Coal KW - Coal Gasification KW - Cooling Systems KW - Electric Power KW - Emission Control KW - Emissions KW - Nitrogen Oxides KW - Particulates KW - Pipelines KW - Power Plants KW - Steam Generators KW - Storage KW - Transmission Lines KW - Turbines KW - Vegetation KW - Wildlife Habitat KW - Texas KW - American Recovery and Reinvestment Act of 2009, Funding KW - Energy Policy Act of 2005, Funding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888700549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Full+Text&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-08-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.title=TEXAS+CLEAN+ENERGY+PROJECT%2C+ODESSA%2C+ECTOR+COUNTY%2C+TEXAS.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - Department of Energy, National Energy Technology Laboratory, Morgantown, West Virginia; DOE N1 - Date revised - 2011-08-01 N1 - SuppNotes - Final. Preparation date: August 5, 2011 N1 - Last updated - 2011-12-16 ER - TY - RPRT T1 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. [Part 22 of 22] T2 - TEXAS CLEAN ENERGY PROJECT, ODESSA, ECTOR COUNTY, TEXAS. AN - 888700121; 15006-6_0022 AB - PURPOSE: The provision of $450 million in federal financial assistance for the planning, design, and construction of the Texas Clean Energy Project (TCEP) 15 miles southwest of the city of Odessa in Ector County, Texas is proposed. The TCEP would use coal-based integrated gasification combined-cycle technology to generate 400 megawatts (MW) of electricity, and would capture carbon dioxide (CO2) for use in enhanced oil recovery (EOR) and eventual geologic sequestration. It would also produce urea, argon, and sulfuric acid for sale in commercial markets. Summit Texas Clean Energy, LLC (Summit) would build the poly-generation (polygen) plant on a 600-acre site adjacent to the community of Penwell and north of Interstate 20 along a Union Pacific Railroad line. The plant would be designed and constructed to capture approximately 90 percent of its CO2. During the demonstration phase of operations, the project would sequester 2.5 to 3 million tons of CO2 per year by transporting it in pipelines to existing oil fields in the Permian Basin of West Texas for use in EOR operations by third-party buyers of the CO2. Following a three-year testing and operation demonstration phase, the polygen plant would continue in commercial operation for 30 to 50 years. The TCEP would consist of the polygen plant and linear facilities, including an electric transmission line, one or more process waterlines, a natural gas pipeline, a CO2 pipeline connector, a rail line connector, and two access roads that would connect the plant to existing roads. This final EIS evaluates the proposed project, operational options that Summit is considering (four waterline options and six transmission line interconnection options), and a No Action Alternative. The Department of Energy's preferred alternative is to provide financial assistance for Summit's proposed project. The assistance would amount to approximately 26 percent of the project's total capital cost of at least $1.73 billion (2009 dollars) and would be provided on a costshare basis. POSITIVE IMPACTS: The TCEP would generate up to 1.7 billion net kilowatt-hours of electricity per year for delivery to the electric grid while also benefiting the recovery of oil and gas in portions of the Permian Basin. Implementation would demonstrate the commercial-readiness of clean coal technologies fully integrated with a polygen plant. NEGATIVE IMPACTS: Construction would result in the permanent loss of up to 600 acres of mesquite shrub-grassland vegetation and its associated habitat functions for terrestrial species, including Texas horned lizard and 11 state-listed rare species. Direct impacts to air quality would result from construction activities and stationary source emissions (combustion turbine, flare, gasifier, cooling towers, sulfur recovery system, and coal handling) during project operations. Incremental increases of constituents would be up to nine percent for particulate matter with diameter equal to or less than 10 micrometers and up to 200 percent for nitrogen dioxide at the points of maximum impact. An estimated 0.02 ton of mercury emissions per year would be produced and non-captured CO2 emissions from operations would be approximately 300,000 tons per year. Ground water quality impacts could result from the limited potential for upward migration of CO2 or displacement of native fluids. High-intensity lighting would have adverse impacts on night sky viewing conditions. LEGAL MANDATES: American Recovery and Reinvestment Act of 2009 (P.L. 111-5) and Energy Policy Act of 2005 (P.L. 109-58). JF - EPA number: 110246, Final EIS--740 pages, Responses to Comments--162 pages, August 5, 2011 PY - 2011 VL - 22 KW - Energy KW - Agency number: DOE/EIS-0444 KW - Acids KW - Carbon Dioxide KW - Coal KW - Coal Gasification KW