Significance of mechanical behavior and stress heterogeneity in a deep geothermal reservoir

The goal of this thesis is an improved quality of the mechanical characterization and stress distribution of the deep crystalline reservoir in Soultz-sous-Forêts (France). Four major studies, i.e. mechanical properties, in-situ stress field, hydraulic stimulation and numerical modeling were performed. The finding of the lithological and petrographical controls on wellbore stability and induced seismicity in granitic rock is crucial for the future development of the Enhaced Geothermal System.