Jenna L Shelton, Ph.D. (Former Employee)
Science and Products
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Microbial community composition of a hydrocarbon reservoir 40 years after a CO2 enhanced oil recovery flood Microbial community composition of a hydrocarbon reservoir 40 years after a CO2 enhanced oil recovery flood
Injecting CO2 into depleted oil reservoirs to extract additional crude oil is a common enhanced oil recovery (CO2-EOR) technique. However, little is known about how in situ microbial communities may be impacted by CO2 flooding, or if any permanent microbiological changes occur after flooding has ceased. Formation water was collected from an oil field that was flooded for CO2-EOR in the...
Authors
Jenna L. Shelton, Robert S. Andrews, Denise M. Akob, Christina A. DeVera, Adam C. Mumford, John E. McCray, Jennifer C. McIntosh
The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram
The Piper diagram has been a staple for the analysis of water chemistry data since its introduction in 1944. It was conceived to be a method for water classification, determination of potential water mixing between end-members, and to aid in the identification of chemical reactions controlling a sample set. This study uses the information gleaned over the years since the release of the...
Authors
Jenna L. Shelton, Mark A. Engle, Antonella Buccianti, Madalyn S. Blondes
Environmental drivers of differences in microbial community structure in crude oil reservoirs across a methanogenic gradient Environmental drivers of differences in microbial community structure in crude oil reservoirs across a methanogenic gradient
Stimulating in situ microbial communities in oil reservoirs to produce natural gas is a potentially viable strategy for recovering additional fossil fuel resources following traditional recovery operations. Little is known about what geochemical parameters drive microbial population dynamics in biodegraded, methanogenic oil reservoirs. We investigated if microbial community structure was
Authors
Jenna L. Shelton, Denise M. Akob, Jennifer C. McIntosh, Noah Fierer, John R. Spear, Peter D. Warwick, John E. McCray
Determining CO2 storage potential during miscible CO2 enhanced oil recovery: Noble gas and stable isotope tracers Determining CO2 storage potential during miscible CO2 enhanced oil recovery: Noble gas and stable isotope tracers
Rising atmospheric carbon dioxide (CO2) concentrations are fueling anthropogenic climate change. Geologic sequestration of anthropogenic CO2 in depleted oil reservoirs is one option for reducing CO2 emissions to the atmosphere while enhancing oil recovery. In order to evaluate the feasibility of using enhanced oil recovery (EOR) sites in the United States for permanent CO2 storage, an...
Authors
Jenna L. Shelton, Jennifer C. McIntosh, Andrew G. Hunt, Thomas L Beebe, Andrew D Parker, Peter D. Warwick, Ronald M. Drake II, John E. McCray
Impact of formation water geochemistry and crude oil biodegradation on microbial methanogenesis Impact of formation water geochemistry and crude oil biodegradation on microbial methanogenesis
Converting non-producible crude oil to CH4 via methanogenic crude oil biodegradation in oil reservoirs could serve as one way to increase our energy profile. Yet, field data supporting the direct relationship between methanogenesis and crude oil biodegradation are sparse. Indicators of methanogenesis, based on the formation water and gas geochemistry (e.g. alkalinity, δ13C–CO2) were...
Authors
Jenna L. Shelton, Jennifer C. McIntosh, Peter D. Warwick, John E. McCray
Fate of injected CO2 in the Wilcox Group, Louisiana, Gulf Coast Basin: Chemical and isotopic tracers of microbial–brine–rock–CO2 interactions Fate of injected CO2 in the Wilcox Group, Louisiana, Gulf Coast Basin: Chemical and isotopic tracers of microbial–brine–rock–CO2 interactions
The “2800’ sandstone” of the Olla oil field is an oil and gas-producing reservoir in a coal-bearing interval of the Paleocene–Eocene Wilcox Group in north-central Louisiana, USA. In the 1980s, this producing unit was flooded with CO2 in an enhanced oil recovery (EOR) project, leaving ∼30% of the injected CO2 in the 2800’ sandstone post-injection. This study utilizes isotopic and...
Authors
Jenna L. Shelton, Jennifer C. McIntosh, Peter D. Warwick, Amelia Lee Zhi Yi
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 25
Microbial community composition of a hydrocarbon reservoir 40 years after a CO2 enhanced oil recovery flood Microbial community composition of a hydrocarbon reservoir 40 years after a CO2 enhanced oil recovery flood
Injecting CO2 into depleted oil reservoirs to extract additional crude oil is a common enhanced oil recovery (CO2-EOR) technique. However, little is known about how in situ microbial communities may be impacted by CO2 flooding, or if any permanent microbiological changes occur after flooding has ceased. Formation water was collected from an oil field that was flooded for CO2-EOR in the...
Authors
Jenna L. Shelton, Robert S. Andrews, Denise M. Akob, Christina A. DeVera, Adam C. Mumford, John E. McCray, Jennifer C. McIntosh
The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram The isometric log-ratio (ilr)-ion plot: A proposed alternative to the Piper diagram
The Piper diagram has been a staple for the analysis of water chemistry data since its introduction in 1944. It was conceived to be a method for water classification, determination of potential water mixing between end-members, and to aid in the identification of chemical reactions controlling a sample set. This study uses the information gleaned over the years since the release of the...
Authors
Jenna L. Shelton, Mark A. Engle, Antonella Buccianti, Madalyn S. Blondes
Environmental drivers of differences in microbial community structure in crude oil reservoirs across a methanogenic gradient Environmental drivers of differences in microbial community structure in crude oil reservoirs across a methanogenic gradient
Stimulating in situ microbial communities in oil reservoirs to produce natural gas is a potentially viable strategy for recovering additional fossil fuel resources following traditional recovery operations. Little is known about what geochemical parameters drive microbial population dynamics in biodegraded, methanogenic oil reservoirs. We investigated if microbial community structure was
Authors
Jenna L. Shelton, Denise M. Akob, Jennifer C. McIntosh, Noah Fierer, John R. Spear, Peter D. Warwick, John E. McCray
Determining CO2 storage potential during miscible CO2 enhanced oil recovery: Noble gas and stable isotope tracers Determining CO2 storage potential during miscible CO2 enhanced oil recovery: Noble gas and stable isotope tracers
Rising atmospheric carbon dioxide (CO2) concentrations are fueling anthropogenic climate change. Geologic sequestration of anthropogenic CO2 in depleted oil reservoirs is one option for reducing CO2 emissions to the atmosphere while enhancing oil recovery. In order to evaluate the feasibility of using enhanced oil recovery (EOR) sites in the United States for permanent CO2 storage, an...
Authors
Jenna L. Shelton, Jennifer C. McIntosh, Andrew G. Hunt, Thomas L Beebe, Andrew D Parker, Peter D. Warwick, Ronald M. Drake II, John E. McCray
Impact of formation water geochemistry and crude oil biodegradation on microbial methanogenesis Impact of formation water geochemistry and crude oil biodegradation on microbial methanogenesis
Converting non-producible crude oil to CH4 via methanogenic crude oil biodegradation in oil reservoirs could serve as one way to increase our energy profile. Yet, field data supporting the direct relationship between methanogenesis and crude oil biodegradation are sparse. Indicators of methanogenesis, based on the formation water and gas geochemistry (e.g. alkalinity, δ13C–CO2) were...
Authors
Jenna L. Shelton, Jennifer C. McIntosh, Peter D. Warwick, John E. McCray
Fate of injected CO2 in the Wilcox Group, Louisiana, Gulf Coast Basin: Chemical and isotopic tracers of microbial–brine–rock–CO2 interactions Fate of injected CO2 in the Wilcox Group, Louisiana, Gulf Coast Basin: Chemical and isotopic tracers of microbial–brine–rock–CO2 interactions
The “2800’ sandstone” of the Olla oil field is an oil and gas-producing reservoir in a coal-bearing interval of the Paleocene–Eocene Wilcox Group in north-central Louisiana, USA. In the 1980s, this producing unit was flooded with CO2 in an enhanced oil recovery (EOR) project, leaving ∼30% of the injected CO2 in the 2800’ sandstone post-injection. This study utilizes isotopic and...
Authors
Jenna L. Shelton, Jennifer C. McIntosh, Peter D. Warwick, Amelia Lee Zhi Yi