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Monday, December 23, 2013

Geologic Framework for the National Assessment of Carbon Dioxide Storage Resources

Arkoma Basin, Kansas Basins, and Midcontinent Rift Basin Study Areas

USGS Publication: Open-File Report 2012–1024–F
This report identifies and contains geologic descriptions of three storage assessment units (SAUs) in Upper Cambrian to Mississippian sedimentary rocks within the Arkoma Basin study area, and two SAUs in Upper Cambrian to Mississippian sedimentary rocks within the Kansas Basins study area.


Friday, December 20, 2013

Geologic Framework for the National Assessment of Carbon Dioxide Storage Resources

Columbia Basin of Oregon, Washington, and Idaho, and the Western Oregon-Washington Basins

USGS Publication: Open-File Report 2012–1024–D
This report identifies and contains geologic descriptions of three storage assessment units (SAUs) in Eocene and Oligocene sedimentary rocks within the Columbia, Puget, Willapa, Astoria, Nehalem, and Willamette Basins of Oregon, Washington, and Idaho, and focuses on the characteristics, specified in the methodology, that influence the potential CO2 storage resource in those SAUs.


Thursday, December 12, 2013

Surface disposal of produced waters in western and southwestern Pennsylvania

Potential for accumulation of alkali-earth elements in sediments

Outside Publication: International Journal of Coal Geology
In this study, we assess whether disposal practices from treatment of produced waters from both shale gas and conventional operations in Pennsylvania could result in the accumulation of associated alkali earth elements. The results from our 5 study sites indicate that there was no increase in concentrations of total Ra (Ra-226) and extractable Ba, Ca, Na, or Sr in fluvial sediments downstream of the discharge outfalls (p > 0.05) of publicly owned treatment works (POTWs) and centralized waste treatment facilities (CWTs). 


Thursday, December 12, 2013

Geochemical evolution of produced waters from hydraulic fracturing of the Marcellus Shale, northern Appalachian Basin

A multivariate compositional data analysis approach

Outside Publication: International Journal of Coal Geology
Multivariate compositional data analysis methods were used to investigate geochemical data for water injected during hydraulic fracturing and for water produced from 19 Marcellus Shale gas wells in the northern Appalachian Basin.


Thursday, December 12, 2013

Energy and Minerals Science at the U.S. Geological Survey

USGS Publication: Fact Sheet 2013–3111
The U.S. Geological Survey (USGS) is a world leader in conducting research needed to address these challenges and to provide a scientific foundation for policy and decisionmaking with respect to resource use, sustainability, environmental protection, and an adaptive resource management approach.


Tuesday, December 03, 2013

Undiscovered Gas Resources in the Alum Shale, Denmark, 2013

Press Release & Publication
Using a geology-based assessment methodology, the U.S. Geological Survey estimates a mean undiscovered volume of 6.9 trillion cubic feet of natural gas in the Alum Shale in Denmark.


Monday, December 02, 2013

Assessment of Undiscovered Technically Recoverable Oil and Gas Resources of Puerto Rico

USGS Publication: Fact Sheet 2013–3101
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 19 million barrels of undiscovered, technically recoverable oil and 244 billion cubic feet of undiscovered natural gas in the Puerto Rico–U.S. Virgin Islands Exclusive Economic Zone.


Friday, November 22, 2013

Petrologic and Isotopic Data from the Cretaceous (Campanian) Blackhawk Formation and Star Point Sandstone (Mesaverde Group), Wasatch Plateau, Utah

USGS Publication: Open-File Report 2013–1254
To better understand the origin and distribution of sodium in these coals, petrologic studies were undertaken within a sedimentological framework to evaluate the timing and geochemical constraints on the emplacement of sodium-bearing minerals, particularly analcime, which previously had been identified in coals in the Blackhawk Formation. 


Thursday, November 14, 2013

New seismic data acquired over known gas hydrate occurrences in the deepwater Gulf of Mexico

Outside Publication: Department of Energy-National Energy Technology Laboratory  
The U.S. Geological Survey (USGS) led seismic acquisition in the Gulf of Mexico from April 18 to May 3, 2013, collecting ocean-bottomseismometer (OBS) and high-resolution 2D data at lease blocks Green Canyon 955 (GC955) and Walker Ridge 313 (WR313). This collaborative effort among the U.S Department of Energy (DOE), the U.S. Bureau of Ocean Energy Management (BOEM) and the USGS was conducted to provide improved imaging and characterization of the known gas hydrate accumulations at these study sites.


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