Process for recovering crude oil from an underground reservoir
US4029570A · kind A · utility
26Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1976 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Mar 29, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G33/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An emulsion of crude oil and water that is recovered from an underground reservoir is broken by the addition of a naturally occurring brine to effect separation and recovery of the oil phase of the emulsion. Advantageously, brine taken from the same geologic formation as the crude oil can be used as the emulsion breaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.