Development Wells At Long Valley Caldera Geothermal Area (Holt & Campbell, 1984)

From Open Energy Information

Exploration Activity: Development Wells At Long Valley Caldera Geothermal Area (Holt & Campbell, 1984)

Exploration Activity Details
Location Long Valley Caldera Geothermal Area
Exploration Technique Development Wells
Activity Date 1983 - 1985
Usefulness useful
DOE-funding Unknown

Exploration Basis
After 1983, several full sized production and injection wells were drilled within the caldera to the east of Highway 395.

The given value was not understood.
These included two injection wells (IW-1, IW-2) and four production wells (MBP-1, 2, 3, and 5) drilled at Casa Diablo to support the MP-I geothermal power plant, a joint venture between Mammoth Binary Power Company and Pacific Energy Resources Inc.[1] [2] [3] These wells exhibited temperature profiles similar to that encountered in the upper 300 m of (Unocal) Mammoth-1. Successful construction of the MP-I power plant in 1985 by Kennebec Construction Company (a subsidiary of The Ben Holt Co., who designed the facility) marked the completion of the world's first air-cooled binary cycle geothermal power plant.[4]


Additional References
  1. Christopher D. Farrar,Michael L. Sorey,S.A. Rojstaczer,Cathy J. Janik,Robert H. Mariner,T.L. Winnett,M.D. Clark. 1985. Hydrologic and Geochemical Monitoring in Long Valley Caldera, Mono County, California, 1982-1984. (!) : U.S. Geological Survey. Report No.: Water-Resources Investigations Report 85-4183.
  2. Environmental Science Associates. 1987. Mammoth Pacific Geothermal Development Projects: Units II and III. Mono County, CA: Environmental Impact Report, prepared for Energy Management Department.
  3. EGS Inc.. 2012. Technical Geologic Overview of Long Valley Caldera for the Casa Diablo IV Geothermal Development Project. San Francisco, CA: Prepared for Geologica Inc.. Report No.: Appendix D: Geologic and Geothermal Resources Technical Report.
  4. Ben Holt,Richard G. Campbell. 1984. Mammoth Geothermal Project. Geo-Heat Center Quarterly Bulletin. 8(4):17-19.