Hot Dry Rock Energy Extraction Field Test: 75 Days of Operation of a Prototype Reservoir at Fenton Hill, Segment 2 of Phase I

Results from the first extensive field test of a man-made hot dry rock (HDR) geothermal reservoir in low permeability crystalline rock are presented. A reservoir with a small heat transfer area was utilized to study the characteristics of a prototype HDR system over a shortened lifetime. The resulting accelerated thermal drawdown was Modeled to yield an effective area of 8000 m/sup 2/. In addition to the thermal effects, this test provided an opportunity to examine Equipment operation, water permeation into the formation, geochemical interaction between the circulating fluid and the rock and flow characteristics including impedance and residence time distributions. Continuous monitoring for induced seismic effects showed that no activity to a Richter threshold of -1.0 was detected during the 75-day experiment. Library ID#=oitGHC_0354-01.

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Citation Date 1979-06-01T00:00:00

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Original ID 4F8F8060ADA2490FA20AB9842BD691B1
Index Date 2016-03-17T21:26:58
Original Format ISO-USGIN
Original Version 1.2

Author

Name Tester, J.W. , Albright, J.N. (eds.)
Organization Los Alamos Scientific Laboratory of the University of California, Los Alamos, New Mexico (USA)
Email geoheat@oit.edu