Overpressures in the Uinta Basin, Utah: analysis using a three-dimensional basin evolution model

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Publication Type Journal Article
School or College College of Engineering
Department Civil & Environmental Engineering
Creator Mcpherson, Brian James
Other Author Bredehoeft, John D.
Title Overpressures in the Uinta Basin, Utah: analysis using a three-dimensional basin evolution model
Date 2001
Description Abstract. High pore fluid pressures, approaching lithostatic, are observed in the deepest sections of the Uinta basin,Utah. Geologic observations and previous modeling studies suggest that the most likely cause of observed overpressure is hydrocarbon generation. We studied Uinta overpressure by developing and applying a three-dimensional, numerical model of the evolution of the basin. The model was developed from a public domain computer code, with addition of a new mesh generator that builds the basin through time, coupling the structural thermal, and hydrodynamic evolution. Also included in the model are in situ hydrocarbon generation and multiphase migration. The modeling study affirmed oil generation as an overpressure mechanism but also elucidated the relative roles of multiphase fluid interaction, oil density and viscosity and sedimentary compaction. An important result is that overpressures by oil generation create conditions for rock fracturing, and associated fracture permeability may regulate or control the propensity to maintain overpressures.
Type Text
Publisher American Geophysical Union (AGU)
Volume 37
Issue 4
First Page 857
Last Page 871
Language eng
Bibliographic Citation Mcpherson, B. J., & Bredehoeft, J. D. (2001). Overpressures in the Uinta Basin, Utah: analysis using a three-dimensional basin evolution model. Water Resources Research, 37(4), 857-71. April.
Rights Management Author Mcpherson, B. J., & Bredehoeft, J. D., Overpressures in the Uinta Basin, Utah: analysis using a three-dimensional basin evolution model. Water Resources Research, 37(4), 857-71. 2001. Copyright [2001] American Geophysical Union. Reproduced/modified by permission of American Geophysical Union.
Format Medium application/pdf
Format Extent 1,520,671 bytes
Identifier ir-main,15640
ARK ark:/87278/s6hd8cx0
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 704070
Reference URL https://collections.lib.utah.edu/ark:/87278/s6hd8cx0
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