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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.
| 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 |
| Conference Title | 1985 International Symposium on Geothermal Energy. Geothermal Resources Council 1985 Annual Meeting. |
| Conference Location | Kailua-Kona, HI, USA |
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