Selective steam foam soak oil recovery process
US4532993A · kind A · utility
29Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Sep 7, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a steam soak oil recovery process in a heavy oil reservoir which is susceptible to gravity override, improved results are obtained by injecting the steam in the form of a steam-foam-forming mixture which has a chemical selectivity for being more mobile within the reservoir in contact with the reservoir oil than in the absence of that oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.