[S-CG58] Brittle-Ductile Transition and Supercritical Geofluids for Crustal Energy in Island Arc

Thu. May 30, 2019 3:30 PM - 5:00 PM A09 (TOKYO BAY MAKUHARI HALL)

convener:Noriyoshi Tsuchiya(Graduate School of Environmental Studies, Tohoku University), Hiroshi Asanuma(AIST), Yasuo Ogawa(Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology), Shigemi Naganawa(Akita University), Chairperson:Noriyoshi Tsuchiya

Nature of rock mass below the brittle-ductile transition (BDT) is of great scientific interest to understand various phenomenon in the Earth's crust. We will review and discuss current understanding of characteristics the rock mass below the BDT, including composites, stress, failure mechanism induced by liquid injection and associates earthquake generation mechanism, and water rock interaction, considering engineered geothermal development in the BDT. Discussions on the possible phenomena in the geothermal development in the BDT will be followed in this session.
New drilling technology is key of issues. This session will cover advanced drilling technology under high temperature conditions for energy extraction.

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3:30 PM - 3:45 PM

[SCG58-07] 3D S-wave velocity structure in volcanic region using surface-wave tomography

*Hiro Nimiya¹, Tatsunori Ikeda¹, Takeshi Tsuji¹ (1.Kyushu University)

3:45 PM - 4:00 PM

[SCG58-08] Resistivity-Based Temperature and Permeability Estimation of the Kakkonda Geothermal Field, Japan, Using a Neural Network

*Ugou Tsubasa¹, Kazuya Ishitsuka², Toru Mogi³ (1.Department of Socio-Environmental Engineering Scool of Engineering Hokkaido University, 2.Division of Urban Management, Grduate School of Engineering, Kyoto University, 3.Division of Sustinable Resources Enginieering, Faculty of Engineering, Hokkaido University)

4:00 PM - 4:15 PM

[SCG58-09] Preliminary report on geothermal structure revealed by geological and MT surveys around Akayumatasawa river in Sanzugawa caldera, NE Japan

*Keishi Nunohara¹, Kuo Hsuan Tseng², Hiroki Okano¹, Yasuo Ogawa², Noriyoshi Tsuchiya¹ (1.Graduate school of Environmental Studies Tohoku University , 2.Graduate school of Science , Tokyo Institute of Technology)

4:15 PM - 4:30 PM

[SCG58-10] Characterization of hydraulic fracturing phenomena in supercritical geothermal environments revealed by elastic wave measurements

*Miura Takahiro¹, Noriaki Watanabe¹, Kiyotoshi Sakaguchi¹, Ryota Goto, Kota Yamane, Takeshi Komai¹, Youqing CHEN², Takuya ISHIBASHI³, Noriyoshi Tsuchiya¹ (1. Graduate School of Environmental Studies, Tohoku University, 2.Graduate School of Energy Science, Kyoto University, 3.AIST, FREA)

4:30 PM - 4:45 PM

[SCG58-11] Experimental measurements of transport pore radius of thermally cracked granite and the relationship of pore structure to permeability

*Sueyoshi Kazumasa¹, Tadashi Yokoyama², Ikuo Katayama¹ (1.Department of Earth and Planetary Systems Science, Hiroshima University, 2.Graduate School of Integrated Arts and Sciences, Hiroshima University)

4:45 PM - 5:00 PM

[SCG58-12] Geothermal reservoir evaluation by using TL of Quartz and Fluid Flow Simulation Model of the Kakkonda system in Japan

*Alvaro Josue Amaya¹, Nobuo Hirano¹, Noriyoshi Tsuchiya¹ (1.Tohoku University. Graduate School of Environmental Studies)

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