Non-condensible gas injection including alpha-olefin sulfonate dimer surfactant additives and a process of stimulating hydrocarbon recovery from a subterranean formation
US4576232A · kind A · utility
18Cited by
11References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1983 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Jun 24, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- 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 monomer and alpha-olefin sulfonate dimer surfactants along with the gas to form a gas-foam drive medium which is injected into the formation through at least 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.