When I put that question to Enspired-GPT[1], here is the response:

"Geothermal energy is attractive because it can provide reliable, continuous power with little to no pollution by extracting heat from the ground. However, fully realizing this potential is challenging because it's difficult to find subsurface water that is hot and clean enough, and can be accessed and utilized. The high cost of drilling geothermal wells and the logistics of extracting heat from subsurface fluids are also challenges.

One of the hardest parts about accessing geothermal heat sources is the extreme heat, as drill bits are generally comprised of materials that don’t do well in such conditions. The unique difficulties experienced when drilling geothermal wells, such as higher temperatures and harder crystalline rocks, require thinking and solutions outside of the typical soft-rock toolbox.

Quaise plans to surpass the Soviet's deepest hole on Earth, which took two decades to reach 7.6 miles, by using conventional drilling to go 1–2 miles down, then switching to its one-megawatt gyrotron, which will be able to vaporize 11.5 feet of rock per hour. Quaise Energy is also using microwaves to drill into deeper and hotter rocks than a typical bit could withstand.

Gradient Geothermal in Denver sidesteps the requirements of drilling geothermal wells and extracting heat from subsurface fluids by utilizing heat from fluids already being produced by oil and gas companies. They use their HXC System fit-for-purpose organic Rankine cycle equipment to cool produced fluids to meet pipeline specifications, as well as generate onsite.

Sage Geosystems is using geopressured geothermal systems (GGS) by drilling deep, hydraulically fracturing the rocks, and instead of pulling anything out of the fracs, they pump water into them, let it heat up, and then pull that hot water out. Fervo Energy uses an injection well to pump hot water in and another well to pull it out, using two parallel wells instead of vertical wells.

Longer laterals in geothermal drilling mean bigger cones of uncertainty and increased difficulty with bit control while maintaining ROP. Advances in geothermal drilling equipment could help facilitate drilling stability for oil and gas. The oil and gas industry's enthusiasm and expertise in testing and adopting new technologies could help quickly propel geothermal forward in a manner similar to the Shale Boom. The tech that helped during the Shale Boom is quite similar to the tech geothermal needs. However, oil and gas rarely drill as deep and hot as geothermal needs, and the typical sensors used to guide drilling won’t work, or work very poorly, at temperatures useful to geothermal."

Then I ask a follow up question "How far can geothermal wells extend?", see attached.

Tell us what you think and whether Enspired-GPT inspires further geothermal exploration.

Reference:
[1] https://enspired-gpt.com/