Hydraulic and thermal behavior of the Hijiori HDR upper reservoir

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:175638

Yamaguchi, T; Kobayashi, H; Matsunaga, I ^[1]; Sato, Y ^[2]

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1. National Institute for Resources and Environment, Ibaraki (Japan)
2. New Energy and Industrial Technology Development Organization, Tokyo (Japan)

Since Fiscal Year 1985, the New Energy and Industrial Technology Development Organization (NEDO) has been conducting research work at Hijiori in northern Honshu with technical support from the National Institute for Resources and Environment (NIRE). The objective of this project is to develop and confirm elementary technologies, such as hydraulic fracturing and monitoring technology, rather than developing an HDR (Hot Dry Rock) power generation system itself. The Hijiori HDR system is a multi-production well system which consists of one injection well (SKG-2) and three production wells (HDR-1, HDR-2 and HDR-3). In Fiscal Year 1992, a successful circulation test was conducted with an 1,800 m deep reservoir for three months. Water recovery during the circulation test was about 80% and the thermal output of the produced water and steam was about 8 MW. The system proved that the HDR power generation concept is feasible even if the rock mass is permeable and open fault dominated. In this paper, the results of circulation tests from the point of view of water recovery and thermal output are summarized.

• OSTI ID: 175638
• Report Number(s): CONF-951037--
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
GEOTHERMAL RESOURCES
HOT-DRY-ROCK SYSTEMS
HYDRAULIC FRACTURING
JAPAN
MONITORING
PRODUCTION
RESERVOIR FLUIDS
RESERVOIR ROCK