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Tuesday, July 31, 2012

Isopach and Isoresource Maps for Oil Shale Deposits in the Eocene Green River Formation

Includes the Combined Uinta and Piceance Basins, Utah and Colorado

USGS Publication: Scientific Investigations Report 2012–5076
The in-place oil shale resources in the Eocene Green River Formation of the Piceance Basin of western Colorado and the Uinta Basin of western Colorado and eastern Utah are estimated at 1.53 trillion barrels and 1.32 trillion barrels, respectively. Although the Green River Formation is largely eroded for about a 20-mile area along the crest of the arch, the oil shale interval is similar in both basins, and 17 out of 18 of the assessed oil shale zones are common to both basins. Assessment maps for these 17 zones are combined so that the overall distribution of oil shale over the entire extent of Lake Uinta can be studied.


Monday, July 30, 2012

Radon-222 Content of natural gas samples from Upper and Middle Devonian sandstone and shale reservoirs in Pennsylvania

Preliminary data

USGS Publication: Open-File Report 2012–1159
Samples of natural gas were collected as part of a study of formation water chemistry in oil and gas reservoirs in the Appalachian Basin. Analyses of the radon content of the gas indicated 222Rn (radon-222) activities ranging from 1 to 79 picocuries per liter (pCi/L) with an overall median of 37 pCi/L.


Friday, July 27, 2012

Assessment of Undiscovered, Conventional Oil and Gas Resources of Mexico, Guatemala, and Belize, 2012

USGS Publication: Fact Sheet 2012–3069
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 19 billion barrels of oil and 83 trillion cubic feet of undiscovered natural gas resources in 10 geologic provinces of Mexico, Guatemala, and Belize.

 


Thursday, July 26, 2012

Temperature and petroleum generation history of the Wilcox Formation, Louisiana

USGS Publication: Open-File Report 2012-1046
A one-dimensional petroleum system modeling study of Paleogene source rocks in Louisiana was undertaken in order to characterize their thermal history and to establish the timing and extent of petroleum generation. The focus of the modeling study was the Paleocene and Eocene Wilcox Formation, which contains the youngest source rock interval in the Gulf Coast Province.


Wednesday, July 18, 2012

Potential for Technically Recoverable Unconventional Gas and Oil Resources in the Polish-Ukrainian Foredeep, Poland, 2012

USGS Publication: Fact Sheet 2012–3102
USGS estimated mean volumes of 1,345 billion cubic feet of potentially technically recoverable gas and 168 million barrels of technically recoverable oil and natural gas liquids in Ordovician and Silurian age shales in the Polish- Ukrainian Foredeep basin of Poland.


Tuesday, July 17, 2012

Kentucky Permitted Mine Boundaries

Outside Publication: Kentucky Geological Survey
The Kentucky Geological Survey, through USGS funding of agreement G10AC00465, has converted Kentucky Division of Mine Permits’ scanned, georeferenced images of mine permit areas to vector GIS format.


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