Drilling campaign for FEAR

All in all, three boreholes are being drilled until the end of September. The three boreholes start at tunnel metre ~2360, and we use them to verify the extension of the fault and thus the experimental design of FEAR. Additionally, the information from this prospection campaign will inform our decision about the exact starting point of the FEAR tunnel. From this new tunnel, the fault will be stimulated via injection boreholes. The first experimentation phase of the FEAR project is planned to start in summer 2023.