Non-condensible gas injection including alpha-olefin sulfonate surfactant additives
US4572294A · kind A · utility
14Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | May 16, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/594
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved non-condensible gas injection process for recovering hydrocarbons from a subterranean formation. The process includes the use of alpha-olefin sulfonate surfactants along with the non-condensible gas to form a gas-foam drive medium which is injected into the formation through at lest one injection well to enhance the recovery of hydrocarbons from at least one production well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.