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Wednesday, January 28, 2015

Historical Hydraulic Fracturing Trends and Data Unveiled in New USGS Publications

USGS News Release & Publications  
Two new USGS publications that highlight historical hydraulic fracturing trends and data from 1947 to 2010 are now available. This national analysis of data on nearly 1 million hydraulically fractured wells and 1.8 million fracturing treatment records from 1947 through 2010 is used to identify hydraulic fracturing trends in drilling methods and use of proppants (sand or similar material suspended in water or other fluid to keep fissures open), treatment fluids, additives, and water in the United States.

 


Tuesday, January 27, 2015

USGS Compilation of Geographic Information System (GIS) Data Representing Coal Mines and Coal-Bearing Areas in China

USGS Publication: Open-File Report 2014-1219
Geographic information system (GIS) information may facilitate energy studies, which in turn provide input for energy policy decisions. The U.S. Geological Survey (USGS) has compiled geographic information system (GIS) data representing the known coal mine locations and coal-mining areas of China as of 2001. These data are now available for download, and may be used in a GIS for a...


Monday, January 26, 2015

U.S. Geological Survey Carbon Sequestration – Geologic Research and Assessments

Outside Publication: Energy Procedia
In 2007, the U.S. Energy Independence and Security Act authorized the U.S. Geological Survey (USGS) to conduct a national assessment of geologic storage resources for anthropogenic carbon dioxide (CO2) and to evaluate the national technically recoverable hydrocarbon resources resulting from CO2 injection and storage through CO2-enhanced oil recovery (CO2-EOR)...


Monday, January 26, 2015

Noble gas geochemistry investigation of high CO2 natural gas at the LaBarge Platform, Wyoming, USA

Outside Publication: Energy Procedia
A regional sampling of gases from thermal springs near the LaBarge Field, Wyoming, USA to determine the extent of the total carbon dioxide system (TCDS) indicates that the system may extend up to 70 km to the northwest of the field. Geochemical evidence from noble gas isotopes, stable element isotopes, and gas composition provide the foundation for these conclusions. Samples from Soda Springs to the west and Grand Teton National Park to the north do not exhibit the potentially diagnostic LaBarge...


Monday, January 26, 2015

Significance of carbon dioxide density estimates for basin-scale storage resource assessments

Outside Publication: Energy Procedia
The geologic carbon dioxide (CO2) storage resource size is a function of the density of CO2 in the subsurface. The pressure and temperature of the storage reservoir at depth affect the CO2 density. Therefore, knowing these subsurface conditions allows for improved resource estimates of potential geologic CO2 storage capacity. In 2012, the U.S. Geological Survey (USGS) completed an assessment of geologic CO2 storage resources for large sedimentary basins in onshore and State waters areas of the U.S...


Monday, January 26, 2015

The U. S. Geological Survey carbon dioxide storage efficiency value methodology: Results and observation

Outside Publication: Energy Procedia
In order to complete the 2013 U.S. Geological Survey (USGS) assessment of carbon dioxide (CO2) storage resources [1], a methodology was needed to determine the CO2 storage efficiency of individual rock strata [2]. The method that was used involved a storage efficiency approximation by MacMinn et al. [3], combined with a brine viscosity model by Mao and Duan [4], and thermal and pressure data from petroleum fields across basins [5]...


Thursday, January 22, 2015

Seismic monitoring at the Decatur, IL, CO2 sequestration demonstration site

Outside Publication: Energy Procedia
The viability of carbon capture and storage (CCS) to reduce emissions of greenhouse gases depends on the ability to safely sequester large quantities of CO2 over geologic time scales. One concern with CCS is the potential for induced seismicity. We report on ongoing seismic monitoring by the U.S. Geological Survey (USGS) at a CCS demonstration site in Decatur, IL, in an effort to understand the potential hazards posed by injection-induced seismicity associated with geologic CO2 sequestration...


Tuesday, January 20, 2015

Geochemical and isotopic evolution of water produced from Middle Devonian Marcellus shale gas wells, Appalachian basin, Pennsylvania

Outside Publication: AAPG Bulletin
The number of Marcellus Shale gas wells drilled in the Appalachian basin has increased rapidly over the past decade, leading to increased interest in the highly saline water produced with the natural gas which must be recycled, treated, or injected into deep disposal wells. New geochemical and isotopic analyses of produced water for 3 time-series and 13 grab samples from Marcellus Shale...


Tuesday, January 13, 2015

Data regarding hydraulic fracturing distributions and treatment fluids, additives, proppants, and water volumes applied to wells drilled in the United States from 1947 through 2010

USGS Publication: Data Series 868
Comprehensive, published, and publicly available data regarding the extent, location, and character of hydraulic fracturing in the United States are scarce. The objective of this data series is to publish data related to hydraulic fracturing in the public domain. The spreadsheets released with this data series contain derivative datasets aggregated temporally and spatially from the commercial and proprietary IHS database of U.S. oil and gas production and well data (IHS Energy, 2011)...


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