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Friday, December 19, 2014

Map of assessed coalbed-gas resources in the United States, 2014

USGS Publication: Digital Data Series 69-II This report presents a digital map of coalbed-gas resource assessments in the United States as part of the U.S. Geological Survey’s (USGS) National Assessment of Oil and Gas Project. Using a geology-based assessment methodology, the USGS quantitatively estimated potential volumes of undiscovered, technically recoverable natural gas resources within coalbed-gas assessment units (AUs).


Wednesday, December 17, 2014

Collaborative studies for mercury characterization in coal and coal combustion products, Republic of South Africa

USGS Publication: Open-File Report 2014-1153
Mercury (Hg) analyses were obtained in USGS laboratories for 42 new samples of feed coal provided by Eskom, representing all 13 coal-fired power stations operated by Eskom in South Africa. This sampling includes results for three older power stations—Camden, Grootvlei, and Komati—returned to service starting in the late 2000s...


Monday, December 15, 2014

Geological controls on the occurrence of gas hydrate from core, downhole log, and seismic data in the Shenhu area, South China Sea

Outside Publication: Marine Geology

Multi-channel seismic reflection data, well logs, and recovered sediment cores have been used in this study to characterize the geologic controls on the occurrence of gas hydrate in the Shenhu area of the South China Sea. The concept of the “gas hydrate petroleum system” has allowed for the systematic analysis of the impact of gas source, geologic controls...


Friday, December 12, 2014

Scientific Results of the India National Gas Hydrate Program Expedition 01

Outside Publication: Journal of Marine and Petroleum Geology
Geologic implications of gas hydrates in the offshore of India: Results of the National Gas Hydrate Program Expedition 01 have been published as a special issue of the Journal of Marine and Petroleum Geology (Volume 58, Part B).


Tuesday, November 18, 2014

Fate of injected CO2 in the Wilcox Group, Louisiana, Gulf Coast Basin

Chemical and isotopic tracers of microbial–brine–rock–CO2 interactions

Outside Publication: Applied Geochemistry
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...


Wednesday, November 12, 2014

USGS Investigations of Water Produced During Hydrocarbon Reservoir Development

USGS Publication: Fact Sheet 2014-3104
Significant quantities of water are present in hydrocarbon reservoirs. When brought to the land surface during oil, gas, and coalbed methane production, the water—either naturally occurring or injected as a method to enhance production—is termed produced water. Produced water is currently managed through processes such as recycling, treatment and discharge, spreading on roads, evaporation or infiltration, and deep well injection.


Monday, October 27, 2014

Geologic Framework for the National Assessment of Carbon Dioxide Storage Resources—Williston Basin, Central Montana Basins, and Montana Thrust Belt Study Areas

USGS Publication: Open-File Report 2012-1024-J
Chapter J - The 2007 Energy Independence and Security Act directs the U.S. Geological Survey (USGS) to conduct a national assessment of potential geologic storage resources for carbon dioxide (CO2). The methodology used by the USGS for the national CO2 assessment follows that of previous USGS work. This methodology is non-economic and is intended to be used at regional to sub-basinal scales.


 

Page Last Modified: Friday, October 10, 2014

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