Below 150°C
In the past, the term geothermal energy was used to describe high-temperature resources extracted from deep, subterranean reservoirs. The definition has since been broadened to include low-temperature geothermal resources.
Low-temperature geothermal energy uses the heat of the Earth's subsurface or hot groundwater, below 150°C for direct heating by means of heat pumps and ground source collectors, consisting of underground pipelines or vertical boreholes.
Welltec products and solutions verified by over 25 years of experience in O&G sector can be applied both to construction of low-temperature geothermal wells and optimizing production.