Micellar fluid for low and high hardness crude oil displacement
US4316809A · kind A · utility
2Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1979 |
| Grant date | Feb 23, 1982 |
| Priority date | — |
| Expiry date | Nov 13, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/938
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A micellar fluid used for displacing crude oil through high and low hardness portions of a subterranean reservoir is formulated with a crude oil displacing hydrocarbon sulfonate surfactant, a water soluble salt of a sulfated, oxyalkylated alcohol and amyl alcohol, preferably n-amyl alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.