Treating shale and clay in hydrocarbon producing formations
US6502637B2 · kind B2 · utility
5Cited by
23References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Clay is stabilized in the drilling of wells and other formation treatment for hydrocarbon production by the addition to the drilling or other fluid fluid of potassium formate together with a cationic formation control additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.