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U.S. Department of Energy
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Lake County Geo-Ag heat center

Journal Article · · Geotherm. Hot Line; (United States)
OSTI ID:6951530
Lake County is proceeding with plans to develop a unique agricultural park called the Geo-Ag Heat Center Project. The project will combine vocational training, geothermal heat-transfer research, and commercial resources for greenhouse heating, crop drying, and other agricultural operations. The first phase of the project involved drilling wells to confirm the availability of an adequate geothermal resource. The first well, AG Park 1, drilled in January, 1986 to a depth of 1614 feet, proved noncommercial; it will be used as an injection well. Next, a geophysical program of seismic surveys was undertaken to pinpoint the more productive fracture zones. Wells AG Park 2 and 3 were drilled in these zones. Both wells were drilled in December 1986, to depths of 592 and 488 feet, respectively. In 3-day tests of continuous production, AG Park 2 and 3 yielded flowing wellhead temperatures of 143/sup 0/F and 153/sup 0/F, respectively, at flow rates exceeding 150 gpm, with minor drawdowns. The next phase of the project entails construction of a 7000 square-foot greenhouse by the end of 1987. It will be operated by the Mendocino-Lake Community College District as an educational and demonstration facility. Geothermal-fluid and irrigation water-distribution and injection-pipeline systems will also be installed in preparation for future commercial leasing on the 3-acre site. The demonstration greenhouse will allow evaluation of the effectiveness of various heat-transfer systems. This would assist commercial operators in designing the most economical system for their needs.
OSTI ID:
6951530
Journal Information:
Geotherm. Hot Line; (United States), Journal Name: Geotherm. Hot Line; (United States) Vol. 17:1; ISSN GHLID
Country of Publication:
United States
Language:
English