| Sustainable Geothermal Utilization Deduced from Mass Balance Estimation - A Case Study of Kamojang Geothermal Field, Indonesia- |
Yayan Sofyan, Yunus Daud, Yustin Kamah and Sachio Ehara |
13. Geophysics |
Sustainability, mass balance, gravity change, Kamojang Geothermal Field |
World Geothermal Congress |
2010 |
English |
| Declined Mass Trends of Unbalanced Production to Recharge Activity in Kamojang Geothermal Field, Indonesia: a Continuous Monitoring with Hybrid Gravimetry |
Yayan SOFYAN, Yunus DAUD, Supriyanto SUPARNO, Ahmad YANI, Tommy HERDIANSYAH, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA and Yoichi FUKUDA |
Geophysics |
unbalanced mass, declined mass trends, gravity monitoring, Kamojang |
Stanford Geothermal Workshop |
2012 |
English |
| Sustainable Energy Development and Water Supply Security in Kamojang Geothermal Field: the Energy-Water Nexus |
Yayan SOFYAN, Yunus DAUD, Jun NISHIJIMA, Yasuhiro FUJIMITSU |
Field Studies |
Gravity monitoring, Sustainable energy development, Water demand, Energy-Water Nexus |
Stanford Geothermal Workshop |
2019 |
English |
| Hybrid Gravimetry for Optimization Time Lapse Monitoring Data: A Case Study in Kamojang Geothermal Field |
Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Yoichi FUKUDA, Makoto TANIGUCHI |
Geophysics |
Hybrid gravimetry,geothermal monitoring, Kamojang Geothermal Field |
World Geothermal Congress |
2015 |
English |
| Monitoring Geothermal Activity at Aso Volcano, Japan, After Small Eruption in May 2011 |
Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Shin YOSHIKAWA, Tsuneomi KAGIYAMA, Takahiro OHKURA |
Geophysics |
Aso volcano, gravity change, mass variation |
Stanford Geothermal Workshop |
2014 |
English |
| Application of Tomography Inversion Methods to Determine the Seismic Wave Velocity Structure (Vp, Vs, Vp/vs) of the Meq Data on “ALPHA” Geothermal Field |
Yayan Mi`rojul Husni, Tommy Hendriansyah, Nanang Dwi Ardi |
— |
Micro earthquake, hydraulic fracturing, Tomography inversion, section of the velocity model |
Indonesian Geothermal Association Conference |
2014 |
English |
| Mechanical Properties of Intact Rock and Fractures in Welded Tuff from Newberry Volcano |
Yawei LI, Jihoon WANG, Woodong JUNG, and Ahmad GHASSEMI |
Enhanced Geothermal Systems |
Newberry EGS, tuff, failure envelop, joints, shear slip |
Stanford Geothermal Workshop |
2012 |
English |
| Application of Fluid Inclusion Studies in Understanding the Thermal Systems in Shiramizugoe and Appi Geothermal Fields, Japan |
Yasuyuki Abe, Hiroyuki Ishizaki, Koichi Tagomori, Takamasa Horikoshi, and Tsuneo Kikuchi |
Petrology |
— |
PNOC-EDC Geothermal Conference |
2003 |
English |
| Curie Point Depth Analysis for Assessment of Supercritical Carbon Recycle CO2 Geothermal Power Generation |
Yasukuni OKUBO, Shoichi YAMANO, Shunsuke AKAZAWA, Kazumi OSATO, Amane TERAI |
Geophysics |
Curie point, Japanese Islands, earthquake, geothermal |
Stanford Geothermal Workshop |
2025 |
English |
| Comparison of Regional Thermal Model With Seismogenic Layer of the Japanese Islands |
Yasukuni Okubo and Akio Yoshida |
7. Geophysics |
Thermal gradient, Japanese Islands, seismogenic structure, brittle-ductile transition |
World Geothermal Congress |
2005 |
English |
| Evidences of Asian Geothermal Structure |
Yasukuni Okubo |
— |
— |
PNOC-EDC Geothermal Conference |
2001 |
English |
| HEAT EXTRACTION EXPERIMENT AT HIJIORI TEST SITE |
Yasuki Oikawa, Norio Tenma, Tsutomu Yamaguchi, Hirokazu Karasawa, Yuji Egawa, Takao Yamauchi |
hot dry rock |
Hijiori , Japan, hot dry rock |
Stanford Geothermal Workshop |
2001 |
English |
| Stress Measurement Using Rock Core in an HDR Field |
Yasuki Oikawa and Tsutomu Yamaguchi |
Advanced Technologies (HDR, Magma, Geopressure) |
Geothermal, Stress, Core, Dsca, Asr, Hijiori |
World Geothermal Congress |
2000 |
English |
| For harmonious geothermal development with near-by hot springs |
Yasukawa, Sakaguchi, Tosha, Uchida, Sasaki, Ishido, Yanagisawa, Nawa, Sugihara, Machida, Masao, Komazawa, Matsubayashi, Ioka, Matsuyama, Noda: |
4 Environment (ENV) |
geothermal system modeling, hot springs, interference, monitoring, numerical simulation, system integration |
European Geothermal Conference |
2013 |
English |
| Reservoir Monitoring by Relative Self-Potential Observation at the Nigorikawa Basin, Hokkaido, Japan |
Yasukawa, Kasumi; Suzuki, Iwao; Ishido, Tsuneo |
Reservoir Evaluation; Self-Potential; Reservoir Monitoring |
Reservoir Evaluation; Self-Potential; Reservoir Monitoring |
Geothermal Resources Council Transactions |
2001 |
English |
| Application of Self-Potential Method to a Vapor Dominated Reservoir, Matsukawa Geothermal System, Japan |
Yasukawa, Kasumi; Kajiwara, Tatsuya; Ishido, Tsuneo |
Reservoir Monitoring; Self-Potential; Vapor dominated reserv |
Reservoir Monitoring; Self-Potential; Vapor Dominated; Matsukawa Geothermal Field |
Geothermal Resources Council Transactions |
2003 |
English |
| Numerical Modeling of the Onikobe Caldera Hydrothermal System, Northeastern Honshu, Japan |
Yasukawa, Kasumi; Ishido, Tsuneo |
Reservoir modeling; Computer modeling |
Reservoir Engineering; Exploration; Research Agencies; Japan; Miyagi; Onikobe; Case Histories; Models; Numerical Simulators; Simulations; Permeability; GSJ; NEDO; Heat Flow; Temperature; Pressure; Magneto Telluric; Conceptual Models; Boundary Conditions; |
Geothermal Resources Council Transactions |
1990 |
English |
| A Coupled Self-Potential and Mass-Heat Flow Code for Geothermal Applications |
Yasukawa, Kasumi; Bodvarsson, Gudmundur S.; Wilt, Michael J. |
Software; Geophysical surveys; Self-potential surveys |
Exploration; Reservoir Engineering; Geophysical Surveys; Self Potential; Fluid Flow; Modeling; Numerical Modeling; Coupled Flows; Cross-coupling Conductivity |
Geothermal Resources Council Transactions |
1993 |
English |
| Low Energy House with Ground Source Heat Pump in Hokkaido |
Yasuhiro Hamada, Kiyoshi Ochifuji, Katsunori Nagano and Makoto Nakamura |
Direct Use, Geothermal Heat Pumps |
experiment, ground source heat pump, low energy house, natural energy, hybrid system |
World Geothermal Congress |
2000 |
English |
| Numerical Modeling of Hydrothermal Systems Around Kuju Volcanic Field -an Attempt of Numerical Modeling for a Broad Geothermal System- |
Yasuhiro FUJIMITSU, Yohei ITO, Jun NISHIJIMA, Daisuke OKA |
Resource Assessment |
Kuju volcanic field, broad geothermal system, hydrothermal system, conceptual model, numerical simulation |
World Geothermal Congress |
2015 |
English |