A study on dynamics of cracks in three dimensions for estimating reservoir cracks in EGS

Kazuo Hayashi, Shinya Onodera

研究成果: Conference contribution

抄録

Preliminary results are presented for analyzing dynamics of genuine 3D reservoir cracks, emphasizing the role of an approach that assumes axisymmetric deformation of an axisymmetric crack, in characterization of reservoir cracks by active acoustic method. Fluid-filled penny shaped and elliptical cracks are employed and the dynamics of the cracks are analyzed by using BIEM (Boundary Integral Equation Method) defined in the Laplace space. It is revealed that the axisymmetric modes of oscillation are predominant and, thus, axisymmetric approach is likely to provide a fairly good approximation in the characterization. On contrary to this, an approach based on 2D crack model is found to be a very poor approximation and may result in a gross misunderstanding of the subsurface settings.

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337-340
ページ数4
30 I
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

Other

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

ASJC Scopus subject areas

  • Geology
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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