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1. WO2015134974 - PROCESS AND METHOD OF PRODUCING GEOTHERMAL POWER

Publication Number WO/2015/134974
Publication Date 11.09.2015
International Application No. PCT/US2015/019473
International Filing Date 09.03.2015
IPC
F03G 4/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
4Devices for producing mechanical power from geothermal energy
F24J 3/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
JPRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
3Other production or use of heat, not derived from combustion
06using natural heat
08using geothermal heat
CPC
F03G 7/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
04using pressure differences or thermal differences occurring in nature
F24T 10/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
10with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
F24T 10/15
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
10with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
13using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
15using bent tubes; using tubes assembled with connectors or with return headers
F24T 10/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
20using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
F24T 10/30
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
30using underground reservoirs for accumulating working fluids or intermediate fluids
Y02E 10/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
10Geothermal energy
Applicants
  • GREENFIRE ENERGY INC [US]/[US]
Inventors
  • MUIR, Mark, P.
  • EASTMAN, Alan, D.
  • BALIK, Randy, N.
  • MUIR, John, R.
Agents
  • OSHA, Jonathan, P.
Priority Data
61/966,97507.03.2014US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS AND METHOD OF PRODUCING GEOTHERMAL POWER
(FR) PROCESSUS ET PROCÉDÉ DE PRODUCTION D'ÉNERGIE GÉOTHERMIQUE
Abstract
(EN) A process for producing power including injecting a first heat transfer fluid through an injection well to a geothermally-heated formation that contains a second heat transfer fluid. The first heat transfer fluid may then be heated via indirect heat exchange in an interwell run fluidly connected to the injection well and disposed within the geothermally-heated formation. The heated first heat transfer fluid may then be recovered through a production well fluidly connected to the interwell run. Thermal energy contained in the recovered heated first heat transfer fluid may then be converted in a power production unit fluidly connected to the injection well and the production well. The interwell run, in some embodiments, may include multiple heat exchange tubes disposed within a perforated casing or drill pipe.
(FR) L'invention porte sur un procédé pour produire de l'énergie, lequel procédé met en œuvre l'injection d'un premier fluide de transfert de chaleur à l'aide d'une injection jusqu'à une formation chauffée de façon géothermique qui contient un second fluide de transfert de chaleur. Le premier fluide de transfert de chaleur peut ensuite être traité par échange de chaleur indirect dans un passage entre puits relié vis-à-vis des fluides au puits d'injection et disposé à l'intérieur de la formation chauffée de façon géothermique. Le premier fluide de transfert de chaleur chauffé peut ensuite être récupéré par l'intermédiaire d'un puits de production relié vis-à-vis des fluides au passage entre puits. De l'énergie thermique contenue dans le premier fluide de transfert de chaleur chauffé récupéré peut ensuite être convertie dans une unité de production d'énergie reliée vis-à-vis des fluides au puits d'injection et au puits de production. Le passage entre puits, dans certains modes de réalisation, peut comprendre de multiple tubes d'échange de chaleur disposés à l'intérieur d'un tuyau de forage ou d'une enceinte perforés.
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