Cooling injection fluid
US12116864B2 · kind B2 · utility
0Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2022 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Dec 27, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of fracturing a subsurface formation includes super-cooling liquid carbon dioxide to a temperature between −60° F. to −70° F. using liquid nitrogen having a temperature in a range of −100° F. to −200° F., pumping the lipid carbon dioxide down a wellbore to create fractures in the subsurface formation, and pumping fracturing fluid containing a proppant down the wellbore after pumping the liquid carbon dioxide down the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.