Method of preparing a drilling fluid comprising structured surfactants
US6166095A · kind A · utility
15Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pourable aqueous composition for use as, or for dilution to form, a drilling mud comprises a least 2% by weight of a water soluble polyvalent metal salt of an alkyl polyoxyalkylene sulphuric or carboxylic acid, and at least 1% by weight of a corresponding salt of an alkyl benzene sulphuric acid, preferably in the presence of a water soluble inorganic salt or base of said polyvalent metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.