| Numerical Simulation of Mineral Composition Effect on Thermal Cracking of Rock |
Junrong LIU, Zhe WANG, Shijie CAO, Xingru WU, Mingliang LUO |
Reservoir Engineering |
thermal cracking, rock, mineral composition, numerical simulation |
World Geothermal Congress |
2020 |
English |
| Possibility of High Vp/Vs Zone in the Geothermal Filed Suggested by the P-to-S Conversion |
Junzo KASAHARA, Yoko HASADA, Haruyasu KUZUME |
Geophysics |
P-to-S conversion, super-crtical, imaging, seismic method, time-lapse,full-waveform inversion, feasibility study |
Stanford Geothermal Workshop |
2020 |
English |
| Simulation of Seismic Imaging of Supercritical Geothermal Reservoir Using Full-waveform Inversion Method |
Junzo KASAHARA, Yoko HASADA, Haruyasu KUZUME |
Geophysics |
full-waveform inversion, physical properties, imaging, seismic monitoring, supercritical water,time-lapse, active seismic source, |
World Geothermal Congress |
2020 |
English |
| A DAS-VSP Study Around the Geothermal Field of the Ohnuma Geothermal Power Plant in Northern Honshu, Japan |
Junzo KASAHARA, Yoko HASADA, Haruyasu KUZUME, Hitoshi MIKADA, and Yoshihiro FUJISE |
Geophysics |
DAS, imaging, seismic method, supercritical, geothermal field, VSP, DTS, |
Stanford Geothermal Workshop |
2021 |
English |
| The Second Seismic Study at the Geothermal Field in Southern Kyushu, Japan Using an Optical Fiber System and Surface Geophones |
Junzo KASAHARA, Yoko HASADA, Haruyasu KUZUME, Hitoshi MIKADA, Yoshihiro FUJISE, |
Geophysics |
DAS, DTS, imaging, seismic method, feasibility study,VSP |
Stanford Geothermal Workshop |
2020 |
English |
| Seismic Feasibility Study to Identify and Characterize Supercritical Geothermal Reservoirs Using DTS, DAS and Surface Seismic Array |
Junzo KASAHARA, Yoko HASADA, Haruyasu KUZUME, Yoshihiro FUJISE, Hitoshi MIKADA |
Geophysics |
DAS, imaging, seismic method, time-lapse,full-waveform inversion, feasibility study, P-to-S conversion |
World Geothermal Congress |
2020 |
English |
| Seismic Time-lapse Approach to Monitor Temporal Changes in the Supercritical Water Reservoir |
Junzo KASAHARA, Yoko HASADA, Haruyasu KUZUME, Yoshihiro FUJISE, Takashi YAMAGUCHI, Hitoshi MIKADA |
Enhanced Geothermal Systems |
supercritical water, DAS, geothermal field, reservoir imaging, seismic method time-lapse, monitoring |
Stanford Geothermal Workshop |
2019 |
English |
| Seismic Study at the Mori Geothermal Power Plant, Japan Using DAS and DTS in a Geothermal Well |
Junzo KASAHARA, Yoko HASADA, Hitoshi MIKADA, Haruyasu KUZUME, Hiroshi OHNUMA and Yoshihiro FUJISE |
Geophysics |
DAS, DTS, geothermal field, seismic reflection, geothermal reservoirs, VSP |
Stanford Geothermal Workshop |
2023 |
English |
| Three Dimensional Seismic Explorations in Kijiyama Geothermal Field in Akita, Japan Using the DFOS (Distributed Fiber Optic Sensing) System in Four Geothermal Boreholes in 2022, 2024, and 2025 |
Junzo KASAHARA, Yoko HASADA, Masaru SUZUKI, Tomohiro TAKAHASHI, Hiroshi OHNUM, Hisashi TATSUNOKUCHI, Issei HIGASHI, Hiroki SAITOH, Yuki YAMAYURA, Yoshihiro FUJISE |
Geophysics |
DAS, Seismic survey, geothermal reservoirs, Vp structure, seismic reflection image, anisotropy |
Stanford Geothermal Workshop |
2026 |
English |
| Seismic Exploration at the TP-2 Geothermal Borehole in Takigami Geothermal Field in Japan Using the DFOS (Distributed Fiber Optic Sensing) System |
Junzo KASAHARA, Yoko HASADA, Shigetsugu FURUYA, Masahiro HIMAZAKIi Hitoshi MIKADA, Hiroshi OHNUMA and Yasuhiro FUJISE |
Geophysics |
DFOS, DAS, deep seismic reflectors, DTS, Vertical fault |
Stanford Geothermal Workshop |
2025 |
English |
| Seismic Imaging of Supercritical Geothermal Reservoir Using Full-waveform Inversion Method |
Junzo KASAHARA, Yoko HASADA, Takashi YAGAGUCHI |
Geophysics |
supercritical water, geothermal energy, full-waveform inversion, time lapse, DAS, physical properties, active seismic source, passive seismic source |
Stanford Geothermal Workshop |
2019 |
English |
| Probabilistic approaches in EGS seismic hazard assessment |
Jupe, A; Francis, D; Gehrmann, M |
Science – Geophysics |
EGS, microseismic, seismicity, hazard |
European Geothermal Congress |
2016 |
English |
| A Numerical Simulator for Flow in Geothermal Wellbores |
Juprasert, Sirisak; Sanyal, Subir K. |
Computer modeling; Wells; Fluid dynamics; Two phase flow |
Reservoir engineering; Flow tests; Pressure; Steam fracture; Temperature; East Mesa; Imperial Valley; California; USA |
Geothermal Resources Council Transactions |
1977 |
English |
| Microstructural and Petrophysical Evaluation of Graphene Modified Portland Wellbore Cement Undergone Cyclic Temperature Loading |
Jupudi, Havila; Massion, Cody; Johnson, Brent; Radonjic, Mileva |
Well Completion; Cementing; Wellbore integrity; High tempera |
Cyclic temperature loading, graphene nanoplatelets, microstructure, geothermal wellbore technology |
Geothermal Resources Council Transactions |
2022 |
English |
| Development of Geothermal Energy Utilization in Slovakia |
Juraj Franko |
Geothermal Development in Central and Eastern Europe |
Hydrogeothermal condition, energy conception, studies, projects, realization |
European Geothermal Conference |
1999 |
English |
| Geothermal Heating Project-Ziar Nad Hronom (Slovakia) |
Juraj Franko and Jan Majersky |
Direct Use, Geothermal Heat Pumps |
hydrogeothermal conditions, feasibility study, drilling results |
World Geothermal Congress |
2000 |
English |
| Utilization of Seismics for Geothermal Prospecting: Case Studies from the Carpathian Mts, Central Europe |
Juraj Janocko and Stanislav Jacko |
Exploration Geophysics |
— |
ARGeo |
2012 |
English |
| Soultz-Sous-Forets: Main Technical Aspects of Deepening the Well GPK2 |
Jurg Baumgartner, Andre Gerard & Roy Baria |
Hot Dry Rock |
Deep drilling, crystalline rocks, well completion |
European Geothermal Conference |
1999 |
English |
| The Geothermal Potential in the Upper Rhine Graben Valley |
Jurgen Dornstadter, Oskar Kappelmeyer & Matias Welter |
Hot Dry Rock |
Upper Rhine Graben, geothermal potential, 3D-Model, temperature distribution |
European Geothermal Conference |
1999 |
English |
| Case Study - Fiber Optic Strain Sensing Results from Cross Well Geothermal Interference Testing |
Jurick, Dana; Titov, Aleksei; Norbeck, Jack; Guzik, Artur; Yokoyama, Mitsunori |
Well testing; Interference testing; Fiber optic sensors |
Conductive fracture mapping, Hydraulic Fracture analysis, Fiber optic sensing, Distributed Fiber Optic Sensing, cross well fracture Interference Testing, Temperature Sensing, Conductive Fracture Mapping, Hydrothermal Production |
Geothermal Resources Council Transactions |
2023 |
English |