US 12,264,851 B2
Geothermal plant for extracting energy from a geothermal reservoir located below the ocean bottom
Robert Crossley, Conwy (GB); Rebecca Bolton, Conwy (GB); Jonathon Hardman, LLandudno (GB); Elisha Drumm, Bridge of Weir (GB); Mark Williams, LLandudno (GB); and Mohammad Nassir, Calgary (CA)
Assigned to CGG SERVICES SAS, Massy (FR)
Appl. No. 18/262,063
Filed by CGG SERVICES SAS, Massy (FR)
PCT Filed Mar. 11, 2022, PCT No. PCT/IB2022/000131
§ 371(c)(1), (2) Date Jul. 19, 2023,
PCT Pub. No. WO2022/214867, PCT Pub. Date Oct. 13, 2022.
Claims priority of provisional application 63/171,169, filed on Apr. 6, 2021.
Prior Publication US 2024/0085065 A1, Mar. 14, 2024
Int. Cl. F24T 10/20 (2018.01); B01D 19/00 (2006.01); C25B 1/042 (2021.01); E21B 41/00 (2006.01); F03G 4/00 (2006.01); F24T 10/30 (2018.01); F24T 10/40 (2018.01); F24T 50/00 (2018.01)
CPC F24T 10/20 (2018.05) [B01D 19/0068 (2013.01); C25B 1/042 (2021.01); E21B 41/005 (2013.01); F03G 4/026 (2021.08); F24T 10/30 (2018.05); F24T 10/40 (2018.05); F24T 50/00 (2018.05); F24T 2201/00 (2018.05); Y02E 60/36 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A geothermal plant for extracting energy from a geothermal reservoir located below the ocean bottom, the geothermal plant comprising:
a floating platform;
a riser that extends from a well drilled into the geothermal reservoir, to the floating platform;
an electrical pump having a mechanical actuation part located in a bore of the riser, and an electronic part located outside the riser, wherein the electrical pump is configured to pump a single-phase geothermal liquid, from the geothermal reservoir to the floating platform; and
a power plant located on the floating platform and configured to use a steam separated from a two-phase geofluid, to generate electrical power,
wherein the mechanical actuation part of the electrical pump is placed underwater, below a given depth of the riser, and
wherein the given depth is a location on the riser where the single-phase geothermal liquid becomes the two-phase geofluid as the single-phase geothermal liquid advances along the riser, toward the floating platform.