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Sunday, November 27, 2011

On the Use of the Beta Distribution in Probabilistic Resource Assessments

Outside Publication: Natural Resources Research
The beta distribution is another continuous distribution defined within a finite interval offering wider flexibility in style of variation, thus allowing consideration of models in which the random variables closely follow the observed or expected styles of variation. 


Sunday, November 27, 2011

Additional Geologic Information for 2011 USGS Assessment of Marcellus Shale

USGS Publication: Open-File Report 2011–1298
The USGS recently assessed the potential for natural gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province. This preliminary report provides some additional geologic information used in the Marcellus Shale assessment.


Tuesday, November 22, 2011

Arctic Petroleum Geology

Outside Publication (book): Arctic Petroleum Geology
New book by The Geological Society of London, "Arctic Petroleum Geology, published August 2011. This book provides a comprehensive overview of the geology and the petroleum potential of the Arctic including 15 papers by USGS scientists.


Thursday, November 17, 2011

New U.S. Geological Survey Method for the Assessment of Reserve Growth

USGS Publication: Scientific Investigations Report 2011–5163
A new U.S. Geological Survey method was developed to assess the reserve-growth potential of technically recoverable crude oil and natural gas to be added to reserves under proven technology currently in practice within the trend or play, or which reasonably can be extrapolated from geologically similar trends or plays. This method currently is in use to assess potential additions to reserves in discovered fields of the United States.


Thursday, November 03, 2011

Formulation of a correlated variables methodology for assessment of continuous gas resources

With application to the Woodford play, Arkoma Basin, eastern Oklahoma

Outside Publication: Geological and Mining Institute of Spain, Boletín Geológico y Minero
USGS paper published in the Geological and Mining Institute of Spain, Boletín Geológico y Minero.  New experimental methodology for assessing continuous gas resources is illustrated by evaluating a gas play in the Woodford Shale in the Arkoma Basin of Oklahoma.


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