On 31st July, Catalana De Perforacions (CDP) started the drilling works at the Sant Cugat demo site. The design of the geothermal field consists of 12 boreholes up to 120m deep and one Horizontal Directional Drilling (HDD).
Image 1: location of the 12 boreholes.
While drilling the first well, some problems with the ground material, mainly clays, and the groundwater level at depths beyond around 60 meters were faced. The borehole heat exchangers are double U PERC 100 SDR 11 PN16, with a diameter of 32mm.
On the other hand, on 3rd of August, the works related to the horizontal connection between the collection chamber and the plant room where the Ground Source Heat Pump (GSHP) will be installed, also started.
These works, including the geothermal field and the horizontal connection between the chamber and the plant room, should be completed on 31st August according to schedule.
Image 2: the second borehole drilled
Image 3: excavation of the collection chamber of the pipes coming from the 12 boreholes