Surfactant compositions for well cleaning
US6686323B2 · kind B2 · utility
12Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Jun 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/927
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A surfactant composition for use in well treatment, particularly for removing oil-based mud deposits from a well prior to cementing, comprises an alkylpolyglucoside in a solution of a mutual solvent for water and hydrocarbon. The composition can be used to formulate a chemical wash by dissolving the composition at a concentration of about 1%-10% (e.g. 5%) by weight in water or brine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.