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Change in Permeability of Cretaceous Sandy Shale in Kushiro Coal Mine due to Axial Stress Disturbance
| 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)
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Submitter: 藤井 義明
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