• Thermoji uses its patented ”closed-loop, reverse circulation technology” to recirculate a finite volume of water pumped from the surface inside a horizontally drilled well casing annulus into a targeted high-temperature subsurface reservoir, allowing the conduction heating of the recirculating water. The heated water reaching the toe of the well will return to the surface inside a smaller diameter open-ended thermal insulated steel tubing positioned within the casing.


  • Geothermally heated hot water continues through the wellhead and is pumped continuously into and out of the heat exchanger. The geothermally heated heat exchanger provides the heat source to heat the organic recirculating fluid from the Organic Rankine Cycle (ORC) system. These organic fluids are designed to boil at much lower temperatures than water.


  • They will immediately vaporize to drive the ORC turbine connected to a generator, generating electricity within its closed-loop cycle. The warm water exiting the heat exchanger is also pumped back down the well casing annulus for continual reheating in a closed loop. This system will work on horizontally geothermal recovery wells. It does not require casing perforations or hydraulic fracturing, which will not create any seismic issues.

Genmoji is conducting Thermoji trial projects in Puerto Rico in 2025-2026. To learn how your company could participate leave us a message.