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We
conduct R&D projects commissioned by New Energy and Industrial Technology
Development Organization (NEDO).
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R&D
projects |
Developing
a hot dry rock system
The hot dry rock system
is the next-generation of geothermal power plants by forming an artificial
geothermal reservoir in the rocks to circulate water in the reservoir via
two wells or more and extracting heat to generate electric power.
 Since
we started the fundamental study as part of the MITI’s Sunshine
Program in 1974, we have worked on the research and development continuously.
In 1995 and 1996, we succeeded a one-month circulation and heat extraction
test at the Hijiori site located in Okura-mura, Yamagata Prefecture.
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And now, The long-term
circulation and heat extraction test that began from December 2000 and is
scheduled to the end in of August 2002 is now in its closing stages.
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Technologies
already available and nearing practical applicationuse |
| Technologies
already available and nearing practical applicationuse |
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 High-precision
MT equipment
PTS memory
logging equipment for detecting lost circulation
Drilling
database for lost circulation
PT memory
logging equipment for high temperature (400°C)
Downhole
sampler for high temperature (300°C)
Well path
calculation and borehole temperature analysis programs
MT 2D/3D
analysis program
Electromagnetic
borehole survey technology |
commission
by NEDO |
| Electromagnetic
tomography equipment and CSEM 2.5D analysis program |
commission
by Metal Mining Agency of Japan |
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Our
own technologies |
G*BASE
(visualized underground information database)
GFLOW
(borehole fluid simulator)
GeoCAD
(pre-processor for TOUGH2) |
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