Biochemically enhanced oil recovery and oil treatment
US5297625A · kind A · utility
63Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Jun 29, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/06
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
This invention relates to the preparation of new, modified organisms, through challenge growth processes, that are viable in the extreme temperature, pressure and pH conditions and salt concentrations of an oil reservoir and that are suitable for use in microbial enhanced oil recovery. The modified microorganisms of the present invention are used to enhance oil recovery and remove sulfur compounds and metals from the crude oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.