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

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タイトル: Change in Permeability of Cretaceous Sandy Shale in Kushiro Coal Mine due to Axial Stress Disturbance
著者: Boeut, S. 著作を一覧する
Oshima, T. 著作を一覧する
Fujii, Yoshiaki 著作を一覧する
Kodama, Jun-ichi 著作を一覧する
Fukuda, Daisuke 著作を一覧する
Matsumoto, H. 著作を一覧する
Uchida, K. 著作を一覧する
キーワード: Permeability
Cretaceous Sandyshale
Kushiro Coal Mine
Axial stress disturbances
Triaxial compression
発行日: 2017年 7月25日
出版者: Civil Engineering Research Institute for Cold Region (CERI) in Japan
誌名: Proceedings of 2017 International Joint Symposium between CERI (Japan) and IEGS (Korea)
巻: 2017
開始ページ: 138
終了ページ: 144
抄録: 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.
記述: Japan-Korea Joint Symposium on Survey and Evaluation Technologies of Underground Environment. 25-27 July, 2017, Sapporo, Japan
資料タイプ: proceedings (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 藤井 義明


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