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Wednesday, August 23, 2017

A Database and Probabilistic Assessment Methodology for Carbon Dioxide-enhanced Oil Recovery and Associated Carbon Dioxide Retention in the United States

Outside Publication: Energy Procedia
The U.S. Geological Survey (USGS) has developed an assessment methodology for estimating the potential incremental technically recoverable oil resources resulting from carbon dioxide-enhanced oil recovery (CO2-EOR) in reservoirs with appropriate depth, pressure, and oil composition...

Wednesday, August 23, 2017

Chemical and Isotopic Evidence for CO2 Charge and Migration within Bravo Dome and Potential CO2 Leakage to the Southwest

Outside Publication: Energy Procedia
Gas analyses from northeastern New Mexico, USA indicate that previous interpretations of the location of gas charge into the northeastern portion of Bravo Dome are likely correct, and that there may be multiple migration pathways from the same source for different regions in northeastern New Mexico...

Monday, August 07, 2017

Mantle and crustal gases of the Colorado Plateau: Geochemistry, sources, and migration pathways

Outside Publication: Geochimica et Cosmochimica Acta

The Colorado Plateau hosts several large accumulations of naturally occurring, non-hydrocarbon gases, including CO2, N2, and the noble gases, making it a good field location to study the fluxes of these gases within the crust and to the atmosphere...


Wednesday, August 02, 2017

3D Pressure-limited approach to model and estimate CO2 injection and storage capacity: saline Mount Simon Formation

Outside Publication: Greenhouse Gases Science and Technology
To estimate the carbon dioxide (CO2) injection and storage capacity of saline formations, we used Tough2-ECO2N simulation software to develop a pressure-limited (dynamic) simulation approach based on applying three-dimensional (3D)...

Wednesday, July 19, 2017

Neutron Scattering Measurements of Carbon Dioxide Adsorption in Pores within the Marcellus Shale: Implications for Sequestration

Outside Publication: Environmental Science & Technology
Shale is an increasingly viable source of natural gas and a potential candidate for geologic CO2 sequestration. Understanding the gas adsorption behavior on shale is necessary for the design of optimal gas recovery and sequestration projects. In the present study neutron diffraction and small-angle neutron scattering measurements of adsorbed CO2 in Marcellus Shale...

Monday, July 17, 2017

USGS Releases Three Approaches for Estimating Recovery Factors in Carbon Dioxide Enhanced Oil Recovery

Technical Announcement  
The U.S. Geological Survey has evaluated three methods for estimating how much oil and gas could be produced by injecting carbon dioxide (CO2) into petroleum reservoirs.


Wednesday, January 18, 2017

Enhanced coal-dependent methanogenesis coupled with algal biofuels: Potential water recycle and carbon capture

Outside Publication: International Journal of Coal Geology
Many coal beds contain microbial communities that can convert coal to natural gas (coalbed methane). Native microorganisms were obtained from Powder River Basin (PRB) coal seams with a diffusive microbial sampler placed downhole and used as an inoculum for enrichments with different nutrients to investigate microbially-enhanced coalbed methane production (MECoM)...

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...

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