ICFT: An Initial Closed-Loop Flow Test of the Fenton Hill Phase II HDR (Hot Dry Rock) Reservoir

摘要

A 30-day closed-loop circulation test of the Phase II Hot Dry Rock reservoir at Fenton Hill, New Mexico, was conducted to determine the thermal, hydraulic, chemical, and seismic characteristics of the reservoir in preparation for a long-term energy-extraction test. The Phase II heat-extraction loop was successfully tested with the injection of 37,000 cu m of cold water and production of 23,300 cu m of hot water. Up to 10 MW/sub t/ was extracted when the production flow rate reached 0.0139 cu m /s at 192/degree/C. By the end of the test, the water-loss rate had decreased to 26% and a significant portion of the injected water was recovered; 66% during the test and an additional 20% during subsequent venting. Analysis of thermal, hydraulic, geochemical, tracer, and seismic data suggests the fractured volume of the reservoir was growing throughout the test. 19 refs., 64 figs., 19 tabs. (ERA citation 14:017240)