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Wednesday, October 19, 2016

Environmental Drivers of Differences in Microbial Community Structure in Crude Oil Reservoirs across a Methanogenic Gradient

Outside Publication: Frontiers in Microbiology
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...

Wednesday, October 19, 2016

Impact of formation water geochemistry and crude oil biodegradation on microbial methanogenesis

Outside Publication: Organic Geochemistry
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...

Wednesday, October 19, 2016

Determining CO2 storage potential during miscible CO2 enhanced oil recovery: Noble gas and stable isotope tracers

Outside Publication: International Journal of Greenhouse Gas Control
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...

Wednesday, September 07, 2016

Cost Implications of Uncertainty in CO2 Storage Resource Estimates: A Review

Outside Publication: Natural Resources Research
Carbon capture from stationary sources and geologic storage of carbon dioxide (CO2) is an important option to include in strategies to mitigate greenhouse gas emissions. However, the potential costs of commercial-scale CO2 storage are not well constrained, stemming from the inherent uncertainty in storage resource estimates coupled with a lack of detailed estimates of the infrastructure needed to...

Monday, August 01, 2016

Risk, liability, and economic issues with long-term CO2 storage—A review

Outside Publication: Natural Resources Research
Given a scarcity of commercial-scale carbon capture and storage (CCS) projects, there is a great deal of uncertainty in the risks, liability, and their cost implications for geologic storage of carbon dioxide (CO2). The probabilities of leakage and the risk of induced seismicity could be remote, but the volume of geologic CO2 storage (GCS) projected to be necessary to...

Friday, July 22, 2016

Assessment of undiscovered continuous oil and gas resources in the Monterey Formation, Los Angeles Basin Province, California, 2015

USGS Publication: Fact Sheet 2016-3036
Using a geology-based assessment methodology, the U.S. Geological Survey assessed technically recoverable mean resources of 13 million barrels of oil, 22 billion cubic feet of gas, and 1 million barrels of natural gas liquids in the Monterey Formation of the Los Angeles Basin Province, California...

Wednesday, July 20, 2016

Application of organic petrography in North American shale petroleum systems: a review

Outside Publication: International Journal of Coal Geology
Organic petrography via incident light microscopy has broad application to shale petroleum systems, including delineation of thermal maturity windows and determination of organo-facies. Incident light microscopy allows practitioners the ability to identify various types of organic components and demonstrates that solid bitumen is the...

Wednesday, July 20, 2016

Assessment of tight-gas resources in Canyon sandstones of the Val Verde Basin, Texas, 2016

USGS Publication: Fact Sheet 2016-3039
Using a geology-based assessment methodology, the U.S. Geological Survey assessed mean resources of 5 trillion cubic feet of gas and 187 million barrels of natural gas liquids in tight-gas assessment units in the Canyon sandstones of the Val Verde Basin, Texas...

Wednesday, July 20, 2016

Assessment of shale-gas resources of the Karoo Province, South Africa and Lesotho, Africa, 2016

USGS Publication: Fact Sheet 2016-3038
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resource of 44.5 trillion cubic feet of shale gas in the Karoo Province of South Africa and Lesotho, Africa...

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