Experimental Approach to Hydrothermally Derived Fracturing of Granitic Rock for Enhanced Geothermal Reservoir Systems

N. Hirano, A. Minakawa, G. Bignall, N. Yamasaki, N. Tsuchiya, K. Nakatsuka

研究成果: Conference article査読

9 被引用数 (Scopus)

抄録

The fracturing of granite and single crystal quartz at sub- and supercritical hydrothermal conditions was investigated in order to advance the utilisation of Enhanced Geothermal (reservoir) Systems (EGS). No changes (i.e. fracturing) were observed at "dry" conditions, for both granite and single crystal quartz (at any temperature-pressure conditions), but fracturing was recognized in "wet" conditions. In our experiments, fracturing was accelerated in the presence of water, and we propose optimal conditions for Hydrothermally-Derived Fracturing (HDF) of granite. Hydrothermally-Derived Fracturing (HDF) can be utilized for future development of Enhanced Geothermal (reservoir) Systems (EGS), by which fluid flow pass and heat exchange in the deep-seated hydrothermal reservoir is drastically enhanced by utilizing HDF.

本文言語English
ページ(範囲)285-288
ページ数4
ジャーナルTransactions - Geothermal Resources Council
出版ステータスPublished - 2002 12 1
イベントGeothermal Resources Council: 2002 Annual Meeting - Reno, NV, United States
継続期間: 2002 9 222002 9 25

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 地球物理学

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