In-situ process for recovering hydrocarbons from a diatomite-type formation
US4485871A · kind A · utility
17Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Mar 9, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/60
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An in-situ process for recovering hydrocarbons from a diatomite-type formation which comprises contacting the diatomite formation with a C.sub.4 -C.sub.10 alcohol and thereafter displacing the hydrocarbon-alcohol mixture with an aqueous alkaline solution towards a production well. The aqueous alkaline solution can be displaced with additional solution or another suitable medium such as a connate water drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.