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Thermal conductivity and porosity maps for different materials: A combined case study of granite and sandstone

Abstract : Thanks to thermal conductivity maps, obtained from Optical Scanning method, and porosity maps, inferred from thermal conductivity maps, we have studied petrophysical heterogeneities commonly present in a granitic and sandstone geothermal reservoir (fault zone and permeable layers, respectively). The maps allowed determination of thermal conductivity and porosity variation to millimeter resolution , at a core scale. They permitted precise quantification and determination of the size of petrophysical heterogeneities (thermal conductivity and porosity) induced by rock variability.
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Sébastien Haffen, Yves Géraud, Michel Rosener, Marc Diraison. Thermal conductivity and porosity maps for different materials: A combined case study of granite and sandstone. Geothermics, Elsevier, 2017, 66, pp.143-150. ⟨10.1016/j.geothermics.2016.12.005⟩. ⟨hal-02457295⟩

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