Aachen’s Geothermal Well “RWTH-1” – The geoscientific research program. Proceedings. 67th DGG-Symposium 2007

The geothermal well “RWTH-1 ” was drilled for the purpose of heating and cooling the future student service centre “SuperC ” at Aachen University. Notwithstanding the economic character of this EU-funded deep borehole (TD at 2544m), a comprehensive geoscientific research program funded by theDFG is aimed at providing new information from this geologically crucial area.Aachen is located at the transition between the Variscan front and the Lower Rhine Embayment. The area is seismically and hydrothermally active which is related to the prolonged structural evolution characterized by compression and extension. Five projects related to the RWTH-1 borehole are currently funded by the Deutsche Forschungsgemeinschaft (DFG). The recent and palaeo stress field as well as the geothermal, fluid andmaterial transport processes nowand in the past are in the focus of interest. Geothermal modeling of the Aachen region and calibration of the coaxial downhole heat exchanger Palaeofluids in hydrothermal veins and intergranular cements of the Aachener geothermal well „RWTH-1“ In-situ stress, microtectonics and rock-fluid-interactions in a seismic and hydrothermal active area of crustal extension Radiogene isotope systems in microstructures and their implications for the development of a fluid system The location is affected by strong tectonic stresses now and in the past. Faults and fractures are the evidences for the recent an