Well drilling fluids having clay control properties
US8097567B2 · kind B2 · utility
29Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2006 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Oct 9, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/30
- 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 including a choline compound together with an formation control additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.