An extensive wireline logging campaign has been carried out in the Rittershoffen geothermal doublet in Eastern France. In particular, dipole sonic logs and wellbore image logs were acquired in the open hole over the target fractured aquifer. The interpretation of image logs allowed the characterization of the geometry (dip and azimuth) and the properties of the natural fracture network. The combination of density and sonic logs served as a base for geomechanical analysis. The near-wellbore results were then integrated and applied to the reservoir scale to build a 3D geological, hydrothermal and geomechanical model of the site.


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