Geopressured

A Survey of Potential Geopressured Resource Areas in California

Basic Information
Author: 
Sanyal, S.K.
Author: 
Robertson-Tait, Ann
Author: 
Kraemer, M.
Author: 
Buening, N.
Description: 
This paper presents the initial results of a survey of the occurrence and characteristics of geopressured fluid resources in California using the publicly-available database involving more than 150,000 oil and gas wells drilled in the State. Of the 975 documented on-shore oil and gas pools studied, about 42 % were identified as potentially geopressured. Geothermal gradients in California oil and gas fields lie within the normal range of 1°F to 2 OF per 100 feet. Except for the Los Angeles Basin, there was no evidence of higher temperatures or temperature gradients in geopressured pools. The porosity of geopressured pools shows the same normal distribution as for normal pressured pools, with a mode in the range of 20 to 25 %. The salinity distribution of both the geopressured and normal pressured pools appear to be bimodal, each with two peak ranges of o to 10,000 and 25,000 to 30,000 ppm. Compared to the U. S. Gulf Coast region, geopressured pools in California display much lower water salinity, and therefore, should have a higher solubility for methane.
Publication Date: 
Friday, January 1, 1993
Resource Language: 
English
Intelectual Originator Contact
Organization Name: 
GeothermEx, Inc.
Street Address: 
3260 Blume Drive,Suite 220
City: 
Richmond
State/Province: 
CA
Postal Code: 
94806
Country: 
United States
Phone: 
510-527-9876
Fax: 
510-527-8164
Resource Information
Access Statement: 
Abstract available online at http://www.geothermex.com/files/Sanyal_1993-1.pdf For a copy of this paper please e-mail us at mw@geothermex.com
Resource Distribution Contact
Organization Name: 
GeothermEx, Inc.
Street Address: 
3260 Blume Drive,Suite 220
City: 
Richmond
State/Province: 
CA
Postal Code: 
94806
Country: 
United States
Phone: 
510-527-9876
Fax: 
510-527-8164
Geographic Extent
North bounding latitude: 
42.442
South bounding latitude: 
32.0481
West bounding longitude: 
-125.42
East bounding longitude: 
-116.719
Previous Citation
Bibliographic Citation: 
Sanyal, S.K., Robertson-Tait, A., Kraemer, M., and Buening, N. 1993. A Survey of Potential Geopressured Resource Areas in California.GeothermEx, Inc., Richmond, California.
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