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Transient Stress Disturbances Induced Change in Permeability of Kushiro Cretaceous Sandstone

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Title: Transient Stress Disturbances Induced Change in Permeability of Kushiro Cretaceous Sandstone
Authors: Boeut, Sophea Browse this author
Oshima, Teppei 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, Hiroyuki Browse this author
Uchida, Kazumi Browse this author
Keywords: Transient stress disturbances
Axial stress
Pore pressure
Permeability
Kushiro Cretaceous sandstone
Issue Date: 27-Mar-2018
Publisher: 資源・素材学会
Journal Title: Proceedings of MMIJ Annual Meeting 2018
Volume: 5
Issue: 1
Start Page: 2201-10-04
Abstract: These phenomena might be induced by change in transient stress disturbances from these etc. in paperback the change in permeability of Kushiro Cretaceous sandstone by transient stress disturbances which change might be potentially used for the enhanced methane gas recovery at Kushiro Coal Mine. The saturated specimens with the dimension of 30 mm in diameter and 60 mm in length under triaxial compression to the axial stress or pore pressure disturbances.Under axial stress disturbance amplitudes of 0-11 MPa and confining pressure of 3-15 MPa, The permeability of the specimens decreased by the disturbances for both pre-post-failure, the reduction amount is greater than was with a greater than confidence pressure but kept almost constant with stress disturbance amplitudes.Under pore pressure disturbance amplitudes of 1.8 MPa and confining pressure of 10 MPa, the permeability of the intact specimen increased by the disturbance and continued increasing by failure, though it decreased by disturbances for the post-failure regime. by the transient pore pressure disturbances inducing microcracks, unclogging the micro-pathway, etc. This increase may be caused by the enhanced methane gas recovery.This increase may be caused by the enhanced methane gas recovery.This increase may be caused by the enhanced methane gas recovery.
Description: MMIJ Annual Meeting 2018, Mar. 27-29 2018, Tokyo, Japan (資源・素材学会平成30(2018)年度春季大会、2018年3月27日(火)~29日(木)、東京大学 本郷キャンパス、東京)
Conference Name: MMIJ Annual Meeting 2018
資源・素材学会平成30(2018)年度春季大会
Conference Place: Tokyo
東京
Type: proceedings
URI: http://hdl.handle.net/2115/68617
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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