Exploration of geothermal hot water fields
Due to the high geological risk and major capital investments, an important factor conditioning participation in a geothermal project is the reduction of geological risk to a minimum. In this situation, it is essential to accurately diagnose the geological structure, determine hydrogeological conditions as well as the temperature capabilities prior to locating the borehole. Prior to commencement of drilling works, it is important to perform surface tests. Geophysical survey methods are an essential tool to reduce this risk.
Generation of geothermal heat
Hot geothermal water extracted from deep wells (reaching up to 2–3 km underground) with a heat pump is directed through a pipeline to heat exchangers, where it gives off its heat to mains water returning from heat consumers. Then, after cooling, geothermal water is pumped back to the aquifer.