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Change in Permeability of Cretaceous Sandy Shale in Kushiro Coal Mine due to Axial Stress Disturbance

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/66960

Title: Change in Permeability of Cretaceous Sandy Shale in Kushiro Coal Mine due to Axial Stress Disturbance
Authors: Boeut, S. Browse this author
Oshima, T. Browse this author
Fujii, Yoshiaki Browse this author →KAKEN DB
Kodama, Jun-ichi Browse this author →KAKEN DB
Fukuda, Daisuke Browse this author →KAKEN DB
Matsumoto, H. Browse this author
Uchida, K. Browse this author
Keywords: Permeability
Cretaceous Sandyshale
Kushiro Coal Mine
Axial stress disturbances
Triaxial compression
Issue Date: 25-Jul-2017
Publisher: Civil Engineering Research Institute for Cold Region (CERI) in Japan
Journal Title: Proceedings of 2017 International Joint Symposium between CERI (Japan) and IEGS (Korea)
Volume: 2017
Start Page: 138
End Page: 144
Abstract: Earthquake-induced stress disturbances caused the water level change in the far-field wells. During the Cold War, the artificial surface vibration in Russia to confuse the source location of underground nuclear tests by Western countries promoted the increase of natural gas production of the nearby wells. The above phenomena might be due to the increase in permeability by the transient stress disturbances resulting from the new pathways being created or the existing pathways being unclogged. Thus, the research was aimed to investigate on the change in permeability due to transient stress disturbance. The permeability change principle might be promoted the enhancement of methane gas recovery, prevention of large earthquake by inducing small earthquakes and de-routing of contaminated ground water flow in the future. The permeability of Cretaceous sandy shale tended to decrease by the disturbances. The smaller the stress amplitude, the larger the decrease in the permeability was. However, the decrease amount was smaller at no disturbances. Increasing and decreasing factors may be working together.
Description: Japan-Korea Joint Symposium on Survey and Evaluation Technologies of Underground Environment. 25-27 July, 2017, Sapporo, Japan
Conference Name: Japan-Korea Joint Symposium on Survey and Evaluation Technologies of Underground Environment
Conference Place: Sapporo
Type: proceedings (author version)
URI: http://hdl.handle.net/2115/66960
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藤井 義明

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