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Tuesday, October 30, 2012

Geologic Framework for the National Assessment of Carbon Dioxide Storage Resources

Powder River Basin, Wyoming, Montana, South Dakota, and Nebraska

USGS Publication: Open-File Report 2012–1024–B
This report presents ten storage assessment units (SAUs) within the Powder River Basin of Wyoming, Montana, South Dakota, and Nebraska.


Wednesday, October 24, 2012

Geologic Assessment of Undiscovered Conventional Oil and Gas Resources

Middle Eocene Claiborne Group, United States Part of the Gulf of Mexico Basin

USGS Publication: Open-File Report 2012–1144
The Middle Eocene Claiborne Group was assessed using established U.S. Geological Survey (USGS) assessment methodology for undiscovered conventional hydrocarbon resources as part of the 2007 USGS assessment of Paleogene-Neogene strata of the United States part of the Gulf of Mexico Basin including onshore and State waters. Total estimated mean undiscovered conventional hydrocarbon resources in the seven assessment units combined are 52 million barrels of oil, 19.145 trillion cubic feet of natural gas, and 1.205 billion barrels of natural gas liquids.


Thursday, October 04, 2012

Assessment of undiscovered oil and gas resources of the Ordovician Utica Shale of the Appalachian Basin Province, 2012

Press Release & Publication
The Utica Shale contains about 38 trillion cubic feet of undiscovered, technically recoverable natural gas (at the mean estimate) according to the first assessment of this continuous (unconventional) natural gas accumulation by the U. S. Geological Survey.  The Utica Shale has a mean of 940 million barrels of unconventional oil resources and a mean of 208 million barrels of unconventional natural gas liquids.


Wednesday, October 03, 2012

Geology of the Devonian Marcellus Shale—Valley and Ridge province, Virginia and West Virginia

A field trip guidebook for the American Association of Petroleum Geologists Eastern Section Meeting, September 28–29, 2011

USGS Publication: Open-File Report 2012–1194
Detailed and reconnaissance field mapping and the results of geochemical and mineralogical analyses of outcrop samples indicate that the Devonian shales of the Broadtop Synclinorium from central Virginia to southern Pennsylvania have an organic content sufficiently high and a thermal maturity sufficiently moderate to be considered for a shale gas play.


Tuesday, October 02, 2012

Assessment of undiscovered conventional oil and gas resources of the Arabian Peninsula, 2012

USGS Publication: Fact Sheet 2012–3115
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 86 billion barrels of oil and 336 trillion cubic feet of undiscovered natural gas resources in the Arabian Peninsula and Zagros Fold Belt. 


Monday, October 01, 2012

Geostatistical population-mixture approach to unconventional resource assessment

With an application to the Woodford gas shale, Arkoma Basin, eastern Oklahoma

Outside Publication: SPE Reservoir Evaluation & Engineering, Volume 15, Issue 05
This paper is the third in a series of different methodological tests aimed at enhancement in the assessment of unconventional resources in the form of more effective use of implicit and explicit information contained in the data, more accurate evaluation of resources, and more informative display of results. Reprocessing of estimated ultimate recovery (EUR) data at the Woodford gas shale in Oklahoma shows that subdivision of the play into areas as homogeneous as possible can produce comparable results with those obtained employing several variables correlated to local productivity.


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