| Reaction of pH-Adjusted Reinjection Brine and Geothermal Reservoir: Simulation by Chemical Equilibrium Approach |
Norifumi Todaka and Hiroyuki Muratake |
Exploration and Development |
pH-adjusted brine, rock titration, reinjection, sulfuric acid, silica scale |
World Geothermal Congress |
2000 |
English |
| Depth of Magma Chamber Determined by Experimental Petrologic Methods |
Akihiko Tomiya |
Exploration and Development |
magma chamber, experimental petrology, Usu volcano, deep-seated geothermal resource |
World Geothermal Congress |
2000 |
English |
| Maintaining the Rated Power Output of the Hatchobaru Geothermal Field Through an Integrated Reservoir Management |
Hiroyuki Tokita, Kenji Haruguchi and Hiroyuki Kamenosono |
Case Histories |
Hatchobaru, injection, maintenance, simulation, TOUGH2, tracer |
World Geothermal Congress |
2000 |
English |
| Tracer Responses in Gas - Liquid, Two - Phase Flow Through Porous Media |
Daisuke Haga, Yuichi Niibori and Tadashi Chida |
Reservoir Evaluation |
Two-phase flow, Bubble flow, Tracer responses, Dispersion, Porous media, Reservoir evaluation |
World Geothermal Congress |
2000 |
English |
| Progress of the Task of HDR Evaluation Under IEA Agreement |
Tsutomu Yamaguchi, Michio Kuriyagawa, Isao Matsunaga, Norio Tenma and Hirokazu Karasawa |
Advanced Technologies (HDR, Magma, Geopressure) |
HDR |
World Geothermal Congress |
2000 |
English |
| Yanaizu-Nishiyama Geothermal Power Station H2S Abatement System |
Kazuo Takahashi and Mituru Kuragaki |
Environmental and Social Aspects |
Odor, H2S Abatement System |
World Geothermal Congress |
2000 |
English |
| Thermal Areas of the Philippines |
Ruel T. Malapitan and Alicia N. Reyes |
Exploration and Development |
thermal areas, volcanic belts, structures, occurrences, reserves and resources |
World Geothermal Congress |
2000 |
English |
| New Development of 3-D Stochastic Model for Design of HDR/HWR Geothermal Reservoirs System |
Ayumu Shimizu, Toshiyuki Hashida, Kimio Watanabe and Jonathan Willis-Richards |
Advanced Technologies (HDR, Magma, Geopressure) |
stimulation |
World Geothermal Congress |
2000 |
English |
| 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 |