| Steam Production Activities, Utilization Factor, Cost Reduction, Ogiri Geothermal Power Plant Japan, Kirishima Geothermal Field Japan |
Makio Kodama |
Case Histories |
geothermal resources, power plants, combined cycles, heat pumps |
World Geothermal Congress |
2000 |
English |
| Hot Spring Interference Study for Predicting Hot Spring Changes in Geothermal Fields |
Kanichi Shimada, Fumitaka Inuyama and Hiroyuki Tokita |
Legal and Regulatory Aspects |
geothermal, environment, hot spring interference, Beppu, Kirishima, Wairakei |
World Geothermal Congress |
2000 |
English |
| Growth Process of the Reservoir in the Yunomori HDR/HWR Test Site -An Approach Based on a Model of Reservoir Growth in the Shear Mode |
Kazuo Hayashi and Keiichi Minamiura |
Reservoir Evaluation |
HDR, HWR, reservoir crack, hydraulic stimulation, hydraulic fracturing |
World Geothermal Congress |
2000 |
English |
| Potential Sites and Experiments for Enhanced Geothermal Systems in the Western United States |
Ann Robertson-Tait and James Lovekin |
Advanced Technologies (HDR, Magma, Geopressure) |
Egs, Stimulation, Enhancement, Augmented Injection, Hdr, Hot Dry Rock |
World Geothermal Congress |
2000 |
English |
| Theoretical Feasibility Studies of Reservoir Monitoring Using Geophysical Survey Techniques |
John Pritchett, Jeffry Stevens, Philip Wannamaker, Shigetaka Nakanishi and Shigeyuki Yamazawa |
Reservoir Evaluation |
reservoir monitoring, numerical simulation, microgravity, resistivity, seismic, self-potential |
World Geothermal Congress |
2000 |
English |
| Pressure Interference Tests at the Oguni Geothermal Field, Northern Kyushu, Japan |
Sabodh K. Garg and Shigetaka Nakanishi |
Reservoir Evaluation |
Oguni Geothermal Field, Pressure Transient Tests, Hohi Geothermal Region, Sugawara Geothermal Field, Pressure Interference Tests |
World Geothermal Congress |
2000 |
English |
| The Decrease of Capacity in Re-Injection Wells in the Takigami Field, Japan |
Hiroki Goto |
Injection Technology |
geothermal, re-injection, silica scale, Takigami field |
World Geothermal Congress |
2000 |
English |
| Experimental Studies of Deep-Geothermal Fluids and Amorphous Mg-Sio2 Scales Up to 350oC |
Akira Ueda, Yoshiji Odashima, Hirokazu Karasawa and Takehiko Kondo |
Case Histories |
deep geothermal fluid, scale, amorphous, Mg- SiO2, experiment, rock-water interaction |
World Geothermal Congress |
2000 |
English |
| Recovery of Silica from the Sumikawa Geothermal Fluids by Addition of Cationic Nitrogen-Bearing Reagents |
Koichi Kato, Katsumi Mogi, Akira Ueda and Kazuo Ishimi |
Case Histories |
cationic nitrogen-bearing reagent, silica, recovery, polymerization |
World Geothermal Congress |
2000 |
English |
| Dissolution, Transport and Precipitation of Silica in Geothermal System |
Naoto Takeno, Tsuneo Ishido and John W Pritchett |
Reservoir Evaluation |
reaction kinetics, silica, transport, numerical simulation |
World Geothermal Congress |
2000 |
English |
| Strontium Consentration and Isotopic Ratio in the Sumikawa and Ohnuma Geothermal Field, Japan |
Junko Kamei, Akiko Kawabata, Hisao Kato and Akira Ueda |
Case Histories |
Sr Isotopic Ratio, Water-Rock Interaction, Sr Partitioning |
World Geothermal Congress |
2000 |
English |
| Development of Numerical Simulation Code for Hydraulic Fracturing Using Embedded Crack Element |
Kazushi Sato and Toshiyuki Hashida |
Advanced Technologies (HDR, Magma, Geopressure) |
Hydraulic Fracturing, Numerical Analysis, Embedded Crack Element, Mixed-Mode Fracture |
World Geothermal Congress |
2000 |
English |
| Silica Scalie Abatement System on the Uenotai Geothermal Steam Turbine |
Kenji Takayama, Naori Komiyama, Yoshinobu Takahashi and Nobuhiko Shakunaga |
Power Generation |
silica scaling, geothermal turbine |
World Geothermal Congress |
2000 |
English |
| Development of Microcracks in Granites Clarified by Fluid Inclusion Study :Examples from the Quaternary Takidani Pluton, Japan |
Kotaro Sekine and Noriyoshi Tsuchiya |
Advanced Technologies (HDR, Magma, Geopressure) |
fluid inclusion |
World Geothermal Congress |
2000 |
English |
| Petrologic Characterization of the Quaternary Volcano-Plutonic System: the Takidani Pluton and Associated Volcanic Rocks in the Japan Alps, Japan |
Masatoshi Bando and Noriyoshi Tsuchiya |
Advanced Technologies (HDR, Magma, Geopressure) |
granitoid |
World Geothermal Congress |
2000 |
English |
| Quaternary Granitic Pluton Inferred from Subsurface Temperature Distribution at the Sengan (HACHIMANTAI) Geothermal Area, Japan |
Shiro Tamanyu |
Exploration and Development |
geothermal, granitic pluton, subsurface temperature, Sengan, Kakkonda |
World Geothermal Congress |
2000 |
English |
| Geological Structure and Subsurface Temperature Distribution in the Wasabizawa Area, Akita Prefecture, Japan |
Tsuneshi Inoue, Masaru Suzuki, Keiichi Yamada, Masaru Fujita, Shinzi Huzikawa, Shigehisa Fujiwara, Ichiro Matsumoto and Koji Kitao |
Case Histories |
geology, temperature, Wasabizawa field |
World Geothermal Congress |
2000 |
English |
| Evaluation of Cooling History of the Quaternary Takidani Pluton Using Thermoluminescence Technique |
Noriyoshi Tsuchiya and Keisuke Fujino |
Advanced Technologies (HDR, Magma, Geopressure) |
thermoluminescence, ESR, cooling history, Takidani granodiorite, geothermal activity |
World Geothermal Congress |
2000 |
English |
| Sulfur Scale Abatement System Using a Surfactant in Geothermal Power Plant Circulating Water |
Satoshi Kudo and Takuo Yano |
Power Generation |
Sulfur Scale, Surfactant, Sulfur Bacteria |
World Geothermal Congress |
2000 |
English |
| Development of Study Methods for Clarifying Formation Mechanism and Distribution of Acid Geothermal Fluid -Case Studies of Geothermal Areas in Kyushu, Japan |
Koji Matsuda, Kan-ichi Shimada and Yumi Kiyota |
Exploration and Development |
acid fluid, fluid geochemistry, sulfur isotope, Kyushu, Hatchobaru field |
World Geothermal Congress |
2000 |
English |