| Seismic Activity in the Kakkonda Geothermal System Characterized by the Quaternary Kakkonda Granite, Japan |
Nobuo Doi, Satoshi Shigehara, Ken Ikeuchi, Osamu Kato, Masaki Takahashi, Takao Ominato, Kazuo Koide and Toshiyuki Tosha |
Exploration and Development |
seismic activity, permeability, heat source, Kakkonda Granite, Iwate Volcano, Japan |
World Geothermal Congress |
2000 |
English |
| Exploration Underground Structure by AE Observation in the Hatchobaru Geothermal Area, Japan |
Hiroshi Nagano, Koichi Tagomori, Hiroki Saito, Kenji Haruguchi, Seiji Nagano and Sachio Ehara |
Exploration and Development |
AE, microearthquake, geothermal, gravity, resistivity, attenuation |
World Geothermal Congress |
2000 |
English |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| ESR Dating of Quartz Veins : Cooling History of a Hydrothermal System |
Keiko Mizugaki |
Exploration and Development |
ESR dating |
World Geothermal Congress |
2000 |
English |
| X-Ray CT Imaging of Pores and Fractures in the Kakkonda Granite, NE Japan |
Tomoyuki Ohtani, Yoshito Nakashima, Tsukasa Nakano and Hirofumi Muraoka |
Exploration and Development |
pores, fractures, X-ray computerized tomography, granite, Kakkonda geothermal field |
World Geothermal Congress |
2000 |
English |
| The Resistivity Structure of High-Temperature Geothermal Systems in Iceland |
Knutur Arnason, Ragna Karlsdottir, Hjalmar Eysteinsson, Olafur G. Flovenz and Steinar Thor Gudlaugsson |
Exploration and Development |
Exploration, Resistivity structure, Thermal alteration |
World Geothermal Congress |
2000 |
English |
| Cooling Indications of the Ulubelu Geothermal System, South Sumatra, Indonesia |
M.Yustin Kamah, Marihot SP Silaban and Mulyadi |
Exploration and Development |
Ulubelu, Indonesia, cooling, hydrothermal minerals, fluid inclusions |
World Geothermal Congress |
2000 |
English |
| The Deeper Parts of the Geysers Thermal System- Implications for Heat Recovery |
Dennis Nielson and Joseph Moore |
Exploration and Development |
brittle-ductile |
World Geothermal Congress |
2000 |
English |
| High Permeability of Quaternary Granites in the Kakkonda Geothermal Area, Northeast Japan |
Koichiro Fujimoto, Manabu Takahashi, Nobuo Doi and Osamu Kato |
Exploration and Development |
permeability, porosity, pore size, mass transfer, magma-hydrothermal system, Kakkonda |
World Geothermal Congress |
2000 |
English |
| Geology and Thermal Features of El Ramal Area, Jujuy Province, Argentina |
Fernando Miranda and Pablo Johanis |
Exploration and Development |
geology |
World Geothermal Congress |
2000 |
English |