Patent ID: 11933278
Assignee: RODA ENERGY CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method of constructing a pressure-tested downhole well loop for a system for generating energy from geothermal sources, the pressure-tested downhole well loop being configured to transfer heat from the surrounding rock formations to a working fluid flowing within the pressure-tested downhole well loop, and induce a phase change on the working fluid from a liquid state to a gaseous state, the method comprising:
providing an access well extending underground into a rock formation;
drilling an injection well into the underground rock formation, the injection well spaced apart from the access well,
drilling a first lateral section extending away from the injection well and connecting to the access well;
installing a first steel casing for the injection well and the first lateral section;
cementing the first steel casing for the injection well and the first lateral section in place within the rock formation;
drilling a production well into the underground rock formation, the production well in proximity to the injection well,
drilling a second lateral section extending away from the production well towards a connecting point between the first lateral section and the second lateral section, the connecting point located along the access well adjacent to the first lateral section;
installing a second steel casing for the production well and the second lateral section;
providing a multilateral connector through the access well and installing the multilateral connector at the connecting point between the first and second lateral sections;
pressure testing the downhole well loop, the downhole well loop including the injection well, the first lateral section, the multilateral connector, the second lateral section, and the production well, the first and second lateral sections having a length that is greater than the distance on the surface between the injection well and the production well; and
cementing the second steel casing for the production well and the second lateral section to the rock formation.