Experimental evaluation of fluid flow through artificial shear fracture in Granite

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Direct shear tests were performed for intact granite samples to prepare specimens containing single shear fractures created under 20, 40, 60 MPa normal stress and 1, 3, 5 mm shear displacement conditions, for flow-through experiments. Shear fractures were successfully created on the constrained fracturing plane. Different normal stress and shear displacement conditions caused different roughness of fracture surfaces. Flow-through experiments were performed for the specimens containing shear fractures under 10-100 MPa confining pressure conditions. In the case of the shear fractures created under 20, 40 MPa normal stress and 1, 5 mm shear displacement conditions, no obvious differences were observed in permeability despite different normal stress and shear displacement conditions. Permeability decreased significantly under low confining pressure conditions (< 40-50 MPa), and then slightly decreased with increasing confining pressure. In the case of the shear fractures created under 60 MPa normal stress and 1, 3, 5 mm shear displacement conditions, on the other hand, permeability differed from the above case. It was observed that permeability decreased drastically under high confining pressure conditions (> 70 MPa). It was also observed that permeability increased clearly with increasing shear displacement condition.

本文言語English
ホスト出版物のタイトルGeothermal Resources Council Transactions - GRC 2006 Annual Meeting
ホスト出版物のサブタイトルGeothermal Resources-Securing Our Energy Future
ページ361-366
ページ数6
出版ステータスPublished - 2006 12 1
イベントGRC 2006 Annual Meeting: Geothermal Resources-Securing Our Energy Future - San Diego, CA, United States
継続期間: 2006 9 102006 9 13

出版物シリーズ

名前Transactions - Geothermal Resources Council
30 I
ISSN(印刷版)0193-5933

Other

OtherGRC 2006 Annual Meeting: Geothermal Resources-Securing Our Energy Future
国/地域United States
CitySan Diego, CA
Period06/9/1006/9/13

ASJC Scopus subject areas

  • 地質学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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