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US 12,595,784 B2Granted
Vertical and helical well designs for enhanced geothermal systems
AssigneeGti Energy
InventorJordan Ciezobka
Life of this patent
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Abstract
A method and system of recovering heat from geothermal energy with a curved producing well extending around an injection well. The injection well is substantially vertical, and the producing well is helical about the injection well. The producing well extends through a plurality of geologic fractures about the injection well formed by multiple injections made through the injection well.
Claims13
A method of recovering heat from geothermal reservoirs, the method comprising:
- forming an injection well in a geothermal reservoir;
- creating a geologic fracture structure in the geothermal reservoir about the injection well, wherein the geologic fracture structure comprises a plurality of radial fractures about the injection well, and creating the geological fracture structure comprises:
- a first injection into the injection well creating a first radial fracture around a section of the injection well;
- a second injection into the injection well creating a second radial fracture around the section of the injection well, and adjacent the first single radial fracture;
- additional injections into the injection well creating additional radial fractures around the section of the injection well, and adjacent the first and second single radial fractures;
- forming a curved producing well that is helical about the injection well and curved through each of the plurality of radial fractures;
- injecting a heat recovery fluid into the injection well to fill the geologic fracture structure and recover heat energy;
- and
- extracting a heated heat recovery fluid within the geologic fracture structure using the curved producing well.
6 more elements
A method of recovering heat from geothermal reservoirs, the method comprising:
- creating a geologic fracture structure in a geothermal reservoir about an injection well, wherein the geologic fracture structure comprises a plurality of radial fractures about the injection well, and creating the geological fracture structure comprises a plurality of separate injections through the injection well, each of the separate injections forming one of the plurality of radial fractures;
- injecting water through the injection well into the geologic fracture structure to recover heat from the geothermal reservoir;
- and
- collecting heated water from the geologic fracture structure in a producing well path that is helical about the injection well and curved through each of the plurality of radial fractures in the geologic fracture structure.
1 more element
A system for recovering heat from geothermal energy, comprising:
- an injection well extending into a geothermal reservoir rock;
- a plurality of radial fractures intersecting the injection well;
- a helical producing well extending curved through each of the plurality of radial fractures;
- and
- a supply of water configured to be injected in the injection well and recovered as heated water from the producing well.
2 more elements
Dependencies are inferred from the claim text.