by Raymi Castilla, Exploration Geologist
HPHT is the term used in the oil industry to designate high pressure and high temperature fields/wells/reservoirs. A reservoir is considered HPHT if its temperature is above 150°C and its fluid pressure exceeds 69 MPa.
Coming to the world of geothermal energy, I was curious how these two worlds match. How hot are wells considered HPHT in the oil industry compared to geothermal wells? How extreme are the conditions in which geothermal wells are drilled?