| Hawaii's Geothermal Future and the Deep Water Cable |
Okura, G. N.; Uemura, R. T.; Chapman, G. A. |
Energy markets; Economics; Feasibility studies; Power grids; |
Brine Technology; Power Generation; USA; Hawaii; Volcanics; Wellhead; Pressure; Transmissions; Phase Relations; Drilling; Economics |
Geothermal Resources Council Transactions |
1982 |
English |
| Curie Point Depths of Japan |
Okubo, Yasukuni; Tsu, Hiroji; Ogawa, Katsuro |
Exploration; Geophysical survey; Mapping; Temperature gradie |
Mapping; Heat Flow; Temperature Gradient; Airborne Surveys; GSJ |
Geothermal Resources Council Transactions |
1985 |
English |
| Regional Assessment in the Hakkoda Geothermal Area, Japan |
Okubo, Yasukuni |
Exploration; Geophysical surveys; Mapping; Reservoir modelin |
Exploration; Japan; Tohoku; Hakkoda; Geophysical Surveys; Gravity Survey; Exploratory Well; Magnetic Survey; Volcanos; Caldera; Geologic Maps; Geologic Models; Forecasts; Power Generation; NEDO; Lost Circulation Zone-LCZ |
Geothermal Resources Council Transactions |
1991 |
English |
| Temperature Gradient Map of the Hakkoda Gidl'hermal Area |
Okubo, Y. and Muraoka, H., |
Geophysics |
— |
Japan International Geothermal Symposium |
1988 |
English |
| Colored Magnetic Map of Japanese Islands |
Okubo, Y. and Makino, M. |
Others |
— |
Japan International Geothermal Symposium |
1988 |
English |
| Experimental Study on Thermal Resistance of Vertical Ground Heat Exchangers |
Okubo, Hiroaki; Fujii, Hikari; Itoi, Ryuichi |
Geothermal Heat Pumps; thermal resistance; thermal response |
Geothermal Heat Pumps; thermal resistance, thermal response test, thermal conductivity, ground heat exchanger |
Geothermal Resources Council Transactions |
2006 |
English |
| Usability and Origin of Geothermal Water Around Beypazarı Region Ankara, Turkey |
Oktay Çelmen, Mehmet Çelik |
14. Geochemistry |
Geothermal springs, environmental isotopes, hydrochemistry, Beypazarı granitoids, Ankara – Turkey |
World Geothermal Congress |
2010 |
English |
| Geochemical and Mineralogical Features in Zones of Anomalous Thermal Flows (Vilyuchinsky HydroThermal System, South Kamchatka) |
OKRUGIN V., ANDREEVA E., OKRUGINA A., CHUBAROV V., CHUBAROV M., YABLOKOVA D |
Geochemistry |
gold, pyrite, sulphates, deposit, epthermal |
World Geothermal Congress |
2015 |
English |
| Zeolites of the Modern and Paleo-Hydrothermal Systems on Kamchatka |
OKRUGIN V., ANDREEVA E., KIM A., MOSKALEVA S., OKRUGINA A., FILOSOFOVA T., YABLOKOVA D., KUDAEVA Sh |
Geochemistry |
zeolites, physico-chemical conditions, epithermal deposit, gold |
World Geothermal Congress |
2015 |
English |
| Sulfide of the Modern Kamchatka Hydrothermal Systems |
OKRUGIN V., ANDREEVA E., CHUBAROV V., YABLOKOVA D., SHISHKANOVA K |
Geochemistry |
sulfide, pyrite, hydrothermal system, precipitation, framboids |
World Geothermal Congress |
2015 |
English |
| Nalychevo Hydrothermal System - an Unique Combination of Natural and Man-Caused Hydrothermal System |
OKRUGIN V. M., ANDREEVA E.D., KARTASHOVA E.V., OKRUGINA A.M., SHISHKANOVA KS.O., BUKHANOVA D.S |
Health, Tourism and Balneology |
hydrothermal system, nature resources, waters, balnology |
World Geothermal Congress |
2015 |
English |
| Diversity and Inclusion in the Geothermal Community: Beginning the Journey of a Thousand Miles |
Okoroafor, Esuru Rita; Letvin, Amelia Ida; de Jong, Elisabeth; Ostrum, Johanna; Thomas, Garen; Radonjic, Mileva; Mora, Laure; Lindberg, Vicki; Blake, Kelly; Trujillo, Jon; Pettitt, Will |
Social aspects; Diversity, equity amd inclusion |
Diversity, Equity, Inclusion, Access, Geothermal Energy |
Geothermal Resources Council Transactions |
2022 |
English |
| Geomechanical Considerations in Modeling Heat Extraction from Enhanced Geothermal Systems |
Okoroafor, Esuru R.; Hawkins, Adam J.; Horne, Roland N. |
HDR/EGS; Reservoir modeling; Fractures |
Enhanced Geothermal Systems, Thermo-Hydro-Mechanical coupling, fracture heterogeneity, numerical simulation |
Geothermal Resources Council Transactions |
2020 |
English |
| The Impact of Fracture Roughness on the Thermal Performance of Enhanced Geothermal Reservoirs |
Okoroafor, Esura Rita; Horne, Roland N. |
HDR/EGS; Reservoir modeling; Fractures; Hydraulic fracturing |
Enhanced Geothermal Reservoirs; Fractures; Numerical Simulation; channels; thermal performance |
Geothermal Resources Council Transactions |
2018 |
English |
| Updated Conceptual Model of Olkaria Geothermal Field Naivasha, Kenya. |
Okoo, Joyce; Omiti, Ammon; Kamunya, Kennedy; Saitet, Daniel |
— |
— |
Geothermal Resources Council Transactions |
2017 |
English |
| The Time Domain IP Method In Geothermal Exploration: Balikesir(Gure) In Turkey |
Okan Tezel, Hakan Hosgormez, Hakan Alp |
13. Geophysics |
Geothermal, time domain IP, chargeability, resistivity. |
World Geothermal Congress |
2010 |
English |
| Precipitation of Silica Minerals by Hydrothermal Flow-Through Experiments at 200-430 C and 30 MPa |
Okamoto, Atsushi; Saishu, Hanae; Hirano, Nobuo; Watanabe, Noriaki; Tsuchiya, Noriyoshi |
Silica; Scaling |
Quartz Precipitation; Hydrothermal Flow-Through Experiments; Quartz Vein; Silica Polymorph |
Geothermal Resources Council Transactions |
2008 |
English |
| Complex Analysis of Both Drilling-Induced Tensile Fractures and Stress-Induced Borehole Breakouts for Estimating of 3-D in Situ Stress State |
Okabe, Takashi; Shinohara, Nobuo; Takasugi, Shinji; Hayashi, Kazuo |
Fractures; Borehole breakouts; Stress fields; Hydraulic frac |
DTF; SBB; Stresses; Compressive stresses; Tensile stresses; Stress state; Models; Inversion |
Geothermal Resources Council Transactions |
1996 |
English |
| In Situ Stress Field and Permeable Fractures in the Akinomiya Geothermal Field, Japan |
Okabe, Takashi; Kajiwara, Tatsuya; Nakata, Haruya; Hayashi, Kazuo; Yokomoto, Seiichi; Miyazaki, Shin'ichi |
HDR/EGS Field Studies; Stress Field; Drilling-Induced Tensil |
Enhanced Geothermal Systems Field Studies; Stress Field; Drilling-Induced Tensile Fracture; BHTV/FMI; Inversion; Akinomiya; NEDO; Critically Stressed Shear Fractures |
Geothermal Resources Council Transactions |
2002 |
English |
| Effects of Orifice Geometry on Steam-Water Critical Flow |
Okabe H., Imai H., Murakoshi K and Arihara N. |
Engineering |
— |
New Zealand Geothermal Workshop |
1996 |
English |