| The Fault System and Geological Structure of the Oguni Geothermal Field, Central Kyushu in Japan |
Shigeo Tezuka, Norifumi Todaka and Isao Shimizu |
Exploration and Development |
horst structure, fault system, Oguni, central Kyushu, stress field, drilling induced tensile fracture |
World Geothermal Congress |
2000 |
English |
| Plugging Method for HDR Reservoir Using Hydrothermal Processing of Smectite Clays to Improve Recoverry Efficient |
Nobuo Hirano, Shoji Higashi and Nakamichi Yamasaki |
Advanced Technologies (HDR, Magma, Geopressure) |
clay smectite HDR plugging hyfrothermal synthe |
World Geothermal Congress |
2000 |
English |
| Fracture Investigation of the Granitic Basement in the HDR Ogachi Project, Japan |
Hisatoshi Ito and Koichi Kitano |
Advanced Technologies (HDR, Magma, Geopressure) |
hot dry rock, Ogachi, natural fracture, hydrothermal brecciation, BHTV |
World Geothermal Congress |
2000 |
English |
| Pressure Transient Testing Inversion for Fluid Flow Modeling in Fractured Rocks Using Simulated Annealing:-Three Dimensional Synthetic Cases |
Shinsuke Nakao, Kenzi Karasaki and Julie Najita |
Reservoir Evaluation |
Pressure Transient, Inversion, Simulated Annealing, 3D Modeling |
World Geothermal Congress |
2000 |
English |
| A Summary of Results of the IEA Task Activities of Deep Geothermal Resources |
Kenji Kimbara, Hirofumi Muraoka, Hideo Kobayashi, Norio Sanada, Kenji Fujimoto and Kazumi Ohsato |
Reservoir Evaluation |
IEA, deep geothermal resources, exploration technology, drilling technology, logging technology, materials evaluation |
World Geothermal Congress |
2000 |
English |
| Study on Surface Area Estimation of the Ogachi HDR Reservoir by Geochemical Method |
Kenzo Kiho |
Advanced Technologies (HDR, Magma, Geopressure) |
Fluid geochemistry, A/M ratio, water-rock interaction, HDR, surface area, Ogachi reservoir |
World Geothermal Congress |
2000 |
English |
| Stress State at the Ogachi Site |
Koichi Shin, Hisatoshi Ito and Yasuki Oikawa |
Exploration and Development |
rock stress, Kaiser effect, core disking, DSCA, shut-in pressure, AE |
World Geothermal Congress |
2000 |
English |
| Heat and Mass Transfer Processes After 1995 Phreatic Eruption of Kuju Volcano, Central Kyusyu, Japan |
Sachio Ehara, Yasuhiro Fujimitsu, Jun Nishijima, Akira Ono and Yuichi Nakano |
Advanced Technologies (HDR, Magma, Geopressure) |
hydrothermal system, phreatic eruption, heat discharge rate ,water balance, volcano energy |
World Geothermal Congress |
2000 |
English |
| Ogachi HDR Reservoir Evaluation by Ae and Geophysical Methods |
Hideshi Kaieda, Robert H. Jones, Hirokazu Moriya, Shunji Sasaki and Keisuke Ushijima |
Advanced Technologies (HDR, Magma, Geopressure) |
Hot Dry Rock, AE, Ogachi, Fracture, Reservoir |
World Geothermal Congress |
2000 |
English |
| Application of NEDO's Core-Analysis System to the Wasabizawa Geothermal Development Field in Northeast Japan |
Shun'ichi Maeda, Hiroshi Takagi, Toshio Fujino, Sachihiro Taguchi, Takayuki Sawaki, Masao Hayashi, Takamasa Horikoshi and Yasukuni Okubo |
Exploration and Development |
Core-analysis system, Fluid inclusion, geothermometry, Laser Raman analysis |
World Geothermal Congress |
2000 |
English |
| Sulfide Scaling of Deep-Geothermal Well at Kakkonda Geothermal Field in Japan |
Norio Yanagisawa, Koichiro Fujimoto and Yasuyuki Hishi |
Exploration and Development |
sulfide-scale, deep-geothermal well, Quaternarygranite, copper, zinc, lead |
World Geothermal Congress |
2000 |
English |
| Temperature Logging by the Distributed Temperature Sensing Technique During Injection Tests |
Keiichi Sakaguchi and Nobuo Matsushima |
Exploration and Development |
Temperature Logging, Optical Fiber, Distributed Temperature Sensing (DTS) Technique, Injection Test |
World Geothermal Congress |
2000 |
English |
| Geothermal Resources Map and Geothermal Features of the Kyushu Region, Southwest Japan |
Keiichi Sakaguchi, Tetsuro Noda, Masaaki Takahashi and Masao Komazawa |
Exploration and Development |
geothermal resources map, Kyushu, Japan, GIS |
World Geothermal Congress |
2000 |
English |
| 3D Modeling and Inversion of Fluid Flow Tomography Data |
Keisuke Ushijima, Hideshi Kaieda and Hideki Mizunaga |
Advanced Technologies (HDR, Magma, Geopressure) |
fracture location |
World Geothermal Congress |
2000 |
English |
| Velocity Structures of Kakkonda Area Estimated by 3-D Simulations |
Tsuneo Kikuchi and Yuji Nishi |
Exploration and Development |
geophysical techniques, velocity structure, simulation |
World Geothermal Congress |
2000 |
English |
| Crustal Temperature and Geothermal Systems in the Northeastern Part of China |
Sachio Ehara, Xu Jin, Yasuhiro Fujimitsu, Tohru Mogi, Ryuichi Itoi, Tatsuji Kai and Liang-huai Zhang |
Case Histories |
crustal temperature, heat flow, geothermal system, basaltic volcano, northeastern China |
World Geothermal Congress |
2000 |
English |
| Exploration of Potential Fractures by Water Injecting Operations |
Keisuke Ushijima, Koichi Tagomori and Isao Kitakoga |
Injection Technology |
Fracture Imaging, Water Injection, Sp Monitoring, 3D Inversion, Fft Survey, Exploratory Drilling |
World Geothermal Congress |
2000 |
English |
| Development of Metal-Seal Packer to Estimate In-Situ Fracture Aperture |
Takashi Takehara, Tsutomu Yamaguchi, Takashi Narita and Yoshiaki Mizuta |
Advanced Technologies (HDR, Magma, Geopressure) |
Hot Dry Rock, hydraulic fracturing, fracture aperture, Dual Single-Packer, Rubber-Seal Packer, Metal-Seal Packer |
World Geothermal Congress |
2000 |
English |
| The Geothermal Power Business in Java - Bali: Trading Mechanism, Competitiveness with Fossil Fuel, and Challenges to Its Development |
Firdaus Akmal, Herman Darnel and Puguh Sugiharto |
Economic and Financing, Privatization |
Geothermal, Investment Procedure, Production Cost Competitiveness and Challenge. |
World Geothermal Congress |
2000 |
English |
| An Updated Geothermal Resources Map of the Tohoku Volcanic Arc, Japan |
Shiro Tamanyu, Masaaki Takahashi, Yasuaki Murata, Keiji Kimbara, Masayori Kawamura, Humiharu Yamaguchi and Takeo Matsunami |
Exploration and Development |
geothermal, resources map, Quaternary volcanoes, Tohoku Volcanic Arc, Japan |
World Geothermal Congress |
2000 |
English |