Cooling for geothermal well drilling
US12140028B2 · kind B2 · utility
2Cited by
63References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Feb 27, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.