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TEMPERATURE VARIATION WITH TIME IN A PERENNIALLY BOILING WELL IN THE LONG VALLEY CALDERA, MONO COUNTY, CALIFORNIA; OBSERVATIONS IN CHANCE NO. 1 (1976-1983).

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Abstract

Chance No. 1 was drilled to a depth of 245. 4 m and cased to a depth of 72. 2 m in 1961. Temperature logs were obtained in 1976, 1982, and 1983, with the casing open to the atmosphere. Water was boiling at the surface of the fluid column on each occasion. Temperatures within the upper part of the cased interval remained virtually identical over the 7-year period. The small differences observed can be ascribed to convective motions in the large-diameter casing and the large geothermal gradient. Above a depth of 160 m in the open hole, temperatures have cooled 5 degree -7 degree C over the 7-year period of observation. The shape of the temperature profiles and their variation with time can be explained by an influx of cool water at about 160 m. The cooling rate is much larger between 1982 and 1983 than that between 1982 and 1976, which suggests that earthquake shaking may be a major contributing factor.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
TEMPERATURE VARIATION WITH TIME IN A PERENNIALLY BOILING WELL IN THE LONG VALLEY CALDERA, MONO COUNTY, CALIFORNIA; OBSERVATIONS IN CHANCE NO. 1 (1976-1983).
ISBN:
0934412596
Volume
9
Issue:
pt 1
Year Published:
1985
Language:
English
Publisher:
Geothermal Resources Council
Publisher location:
Davis, CA, USA
Larger Work Title:
Transactions - Geothermal Resources Council
First page:
417
Last page:
422
Number of Pages:
6
Conference Title:
1985 International Symposium on Geothermal Energy. Geothermal Resources Council 1985 Annual Meeting.
Conference Location:
Kailua-Kona, HI, USA