Porosity network and transfer properties of geothermal formation : Importance of damage zones around faults and fractures Géraud Yves, Rosener Michel,

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Porosity network and transfer properties of geothermal formation : Importance of damage zones around faults and fractures Géraud Yves, Rosener Michel, Place Joachim Institut de Physique du Globe de Strasbourg Equipe de Physique des matériaux UMR 7516, Université Louis Pasteur-CNRS

Strain and rheology of fracture and fault zones Petrophysical data Geology Petrography Mineralogy structure Porosity Permeability Thermal conductivity Strain Stress Temperature time Intrinsic properties Rheologic model THM Code_bright PYGARKI Fault Hanging wall Gouge or cataclasites

Transport through Soultz/forêts granite Mass fluxesFluid fluxesThermal fluxes From mineralogical and geochemical analysis Physico-chemical model of transport Rh : m Rh : m K W/mK From the sample to the mineral scale Thermalconductivity by optical scanning X-ray tomodensitometry

Transport through Soultz/forêts granite Experimental and numerical model of the fluid-rock interaction around a fracture Fracture Granit with damage zone Fluid flow Mass flux measurement Thermal flux measurment Experimental tests under X-ray tomodensitometry Numerical tests under kindis, Kirmat and Code bright models

L ’ oligo-miocen to actual extension W Europe, France- Spain Actual extension : East Europ, Greece Turkey Area of investigation