Does technology exist to extend reservoir life?
Yes, in particular with binary plants since the water produced from the fracture system can be re-injected back into the fracture system and reheated by the source rock. Currently, Calpines, the owner of Geysers, is constructing a $163 million, 41-mile pipeline to move the effluent water from the City of Santa Rosa’s sewage system for injection into the geothermal reservoir. The Raft River property of US Geothermal Inc. (“USGEO”) will involve a binary system to save and re-inject water back into the fractures for reheating. The scheduled reservoir modelling will identify where to position injectors for the maximum benefit.
