Wasn't Quaise on HN before, years ago? They've been talking this up since 2018.
The competing technology is diamond drill bits.[1][2]. As synthetic diamonds have become cheaper, drill bits have improved. The old Hughes-style bits with what looked like big bevel gears now have a competitor. The key question is how much drilling you can do before you have to back out the whole drill string.
That's a slow process, which gets slower as the drill string gets longer.
Polycrystalline diamond bits now sometimes last for 3000+ meters. Maybe longer.
The competing technology is diamond drill bits.[1][2]. As synthetic diamonds have become cheaper, drill bits have improved. The old Hughes-style bits with what looked like big bevel gears now have a competitor. The key question is how much drilling you can do before you have to back out the whole drill string. That's a slow process, which gets slower as the drill string gets longer. Polycrystalline diamond bits now sometimes last for 3000+ meters. Maybe longer.
Comments from anyone in the drilling industry?
[1] https://okbit.com/choose-a-geothermal-drill-bit/
[2] https://www.slb.com/products-and-services/scaling-new-energy...