Advances in the Assessment of the Deep Geothermal Reservoirs of Hainaut, Belgium

In the urbanised area of Mons-Borinage (Hainaut, SW Belgium), deep geothermal potential is known since the late seventies. Since 1986, the resource is exploited by two wells. Current projects aim at developing this resource near Mons city for heat production, but also using a suspected deeper reservoir for electricity production. The development of deep geothermal projects in Hainaut requires a better knowledge of the structure of the reservoirs. For this purpose, a new geophysical survey (2D reflection seismic lines) was conducted in 2012, and data from old surveys were reprocessed. Distinctive discontinuities were expected, according with the regional tectonic framework. Based on our interpretation of the final seismic sections, main geological horizons were picked (in TWT) and integrated in a 3D geological model.