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Development of technologies for utilizing geothermal energy

Abstract

In verifying the effectiveness of the deep geothermal resource exploration technology, development is being carried out on a fracture-type reservoir exploration method. The seismic exploration method investigates detailed structures of underground fracture systems by using seismic waves generated on the ground surface. Verification experiments for fiscal 1994 were carried out by selecting the Kakkonda area in which small fracture networks form reservoir beds. Geothermal resources in deep sections (deeper than 2000 m with temperatures higher than 350{degree}C) are promising in terms of amount of the resources, but anticipated with difficulty in exploration and impediments in drilling. To avoid these risks, studies are being progressed on the availability of resources in deep sections, their utilization possibility, and technologies of effective exploration and drilling. This paper summarizes the results of deep resource investigations during fiscal 1994. It also describes such technological development as hot water utilizing power generation. Development is performed on a binary cycle power generation plant which pumps and utilizes hot water of 150 to 200{degree}C by using a downhole pump. The paper also reports development on element technologies for hot rock power generation systems. It also dwells on development of safe and effective drilling and production technologies for deep  More>>
Publication Date:
Sep 01, 1995
Product Type:
Technical Report
Report Number:
NEDO-OS-9501
Reference Number:
SCA: 150301; 150100; 150800; 150900; PA: NEDO-96:820184; EDB-97:025056; SN: 97001728465
Resource Relation:
Other Information: PBD: Sep 1995; Related Information: Is Part Of Research and Development project reports for FY1994; PB: 507 p.
Subject:
15 GEOTHERMAL ENERGY; GEOTHERMAL ENERGY CONVERSION; HOT-DRY-ROCK SYSTEMS; GEOTHERMAL HOT-WATER SYSTEMS; FRACTURED RESERVOIRS; GEOTHERMAL EXPLORATION; GEOLOGIC FRACTURES; DEPTH 1-3 KM; BINARY-FLUID SYSTEMS; ENERGY POLICY; GOVERNMENT POLICIES; JAPAN; SEISMIC SURVEYS; KAKKONDA GEOTHERMAL FIELD
OSTI ID:
425140
Research Organizations:
New Energy and Industrial Technology Development Organization, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE97725441; TRN: 96:820184
Availability:
Available from Office of Scientific and Technical Information, P.O.Box 1000, Oak Ridge Tennessee 37831, USA; OSTI as DE97725441
Submitting Site:
NEDO
Size:
pp. 203-219
Announcement Date:
Feb 14, 1997

Citation Formats

None. Development of technologies for utilizing geothermal energy. Japan: N. p., 1995. Web.
None. Development of technologies for utilizing geothermal energy. Japan.
None. 1995. "Development of technologies for utilizing geothermal energy." Japan.
@misc{etde_425140,
title = {Development of technologies for utilizing geothermal energy}
author = {None}
abstractNote = {In verifying the effectiveness of the deep geothermal resource exploration technology, development is being carried out on a fracture-type reservoir exploration method. The seismic exploration method investigates detailed structures of underground fracture systems by using seismic waves generated on the ground surface. Verification experiments for fiscal 1994 were carried out by selecting the Kakkonda area in which small fracture networks form reservoir beds. Geothermal resources in deep sections (deeper than 2000 m with temperatures higher than 350{degree}C) are promising in terms of amount of the resources, but anticipated with difficulty in exploration and impediments in drilling. To avoid these risks, studies are being progressed on the availability of resources in deep sections, their utilization possibility, and technologies of effective exploration and drilling. This paper summarizes the results of deep resource investigations during fiscal 1994. It also describes such technological development as hot water utilizing power generation. Development is performed on a binary cycle power generation plant which pumps and utilizes hot water of 150 to 200{degree}C by using a downhole pump. The paper also reports development on element technologies for hot rock power generation systems. It also dwells on development of safe and effective drilling and production technologies for deep geothermal resources.}
place = {Japan}
year = {1995}
month = {Sep}
}