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

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

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The fracturing of granite and single crystal quartz at sub- and supercritical hydrothermal conditions was investigated in order to advance the utilization 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 the experiments, fracturing was accelerated in the presence of water. Optimal conditions for hydrothermally-derived fracturing (HDF) of granite are proposed. HDF is expressed in terms of physico-chemical fracturing under hydrothermal conditions.

Original language	English
Title of host publication	Annu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.
Pages	285-288
Number of pages	4
Publication status	Published - 2002 Dec 1
Externally published	Yes

Publication series

Name	Annu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.
Volume	26
ISSN (Print)	0193-5933

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Geophysics

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Hirano, N., Minakawa, A., Bignall, G., Yamasaki, N., Tsuchiya, N., & Nakatsuka, K. (2002). Experimental approach to hydrothermally derived fracturing of granitic rock for enhanced geothermal reservoir systems. In Annu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans. (pp. 285-288). (Annu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.; Vol. 26).

Experimental approach to hydrothermally derived fracturing of granitic rock for enhanced geothermal reservoir systems. / Hirano, N.; Minakawa, A.; Bignall, G.; Yamasaki, N.; Tsuchiya, N.; Nakatsuka, K.

Annu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.. 2002. p. 285-288 (Annu. Geotherm. Resources Counc. Mtg. (Reno, NV, 9/22-25/2002) Trans.; Vol. 26).

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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AU - Minakawa, A.

AU - Bignall, G.

AU - Yamasaki, N.

AU - Tsuchiya, N.

AU - Nakatsuka, K.

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