The permeability of granite deformed in the brittle regime to large strains: Implications for the permeability of fractured geothermal reservoirs

Michael Heap , Hugo Duwiquet , Luke Griffiths , Laurent Guillou-Frottier , Patrick Baud & Marie Violay
Efficient fluid flow and circulation are important for an economically viable geothermal reservoir. One type of underexplored reservoir for high-temperature geothermal exploitation is a crustal fault zone, where hot fluids from depths corresponding to the brittle-ductile transition are brought to the surface via crustal-scale, permeable fault zones. To better understand the evolving permeability of reservoir rock during deformation in the brittle regime—fault formation and sliding on the fault—we performed triaxial experiments on samples of well-characterised...

Registration Year

  • 2022
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  • Text
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Affiliations

  • University of Strasbourg
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  • University of Orléans
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  • École Polytechnique Fédérale de Lausanne
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  • Norwegian Geotechnical Institute
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  • Institut Universitaire de France
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  • Bureau de Recherches Géologiques et Minières
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