Chapter 3: Geologic Assessment of Undiscovered Oil and Gas in the Williston Basin Province, Montana, North Dakota, and South Dakota
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Date
2013
Authors
Anna, Lawrence O.
Journal Title
Journal ISSN
Volume Title
Publisher
United States Geological Survey
Abstract
The U.S. Geological Survey completed an assessment of the undiscovered oil and gas potential of the Williston Basin Province in 2008. The assessment applied the total petroleum system concept, which includes mapping the distribution of potential source rocks and known petroleum accumulations, and determining the timing of petroleum generation and migration. Geologically based, it focuses on source rock and reservoir rock stratigraphy, timing of tectonic events and the configuration of resulting structures, formation of traps and seals, and burial history modeling. The total petroleum system is subdivided into assessment units based on similar geologic characteristics and accumulation and petroleum type. For the Williston Basin Province, 10 total petroleum systems, 13 conventional assessment units, and 6 continuous (or unconventional) assessment units were defined, and the undiscovered oil and gas resources within each assessment unit were quantitatively estimated.
Description
Courtesy of U.S. Geological Survey. Find online at http://www.usgs.gov/pubprod/
Keywords
geologic assessment, Williston Basin Province, Souris River, USA, North Dakota, South Dakota, Montana, Lake Winnipeg Basin, Oil and Gas
Citation
Anna, L.O., 2013, Geologic assessment of undiscovered oil and gas in the Williston Basin Province, Montana, North Dakota, and South Dakota, chap. 3 of U.S. Geological Survey Williston Basin Province Assessment Team, Assessment of undiscovered oil and gas resources of the Williston Basin Province of North Dakota, Montana, and South Dakota, 2010 (ver. 1.1, November 2013): U.S. Geological Survey Digital Data Series 69–W, 71 p.