Use of calcium halide-water as a heat extraction medium for energy recovery from hot rock systems

Patent · Tue Feb 06 00:00:00 EST 1979

OSTI ID:6838170

Rex, R W

In order to extract energy efficiently from hot dry rock geothermal systems, a mixture of water and calcium chloride is injected into a formation and forced through the formation with simultaneous extraction of heat from the surrounding rocks. The fluid and its contained energy are then recovered by technology known to the art. 10 claims.

• Assignee: EDB-84-090934
• Patent Number(s): US 4137720
• OSTI ID: 6838170
• Resource Relation: Patent File Date: Filed date 17 Mar 1977
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
GEOTHERMAL SYSTEMS
HEAT TRANSFER FLUIDS
WORKING FLUIDS
CALCIUM CHLORIDES
FLUID INJECTION
HEAT EXTRACTION
MATERIALS RECOVERY
WATER
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
MANAGEMENT
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
WASTE MANAGEMENT
WASTE PROCESSING
150902* - Geothermal Engineering- Fluid Transmission