Organofunctional compounds for shale stabilization of the aqueous dispersed phase of non-aqueous based invert emulsion drilling system fluids
US7067460B2 · kind B2 · utility
7Cited by
29References
79Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2002 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Oct 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Invert emulsion drilling system fluids comprising an oleaginous continuous phase and a non-oleaginous dispersed phase, the dispersed phase comprising organofunctional compound(s) effective to provide shale inhibition. The organofunctional compound(s) may be used either as a supplement to or as a substitute for metallic salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.