Biochemically enhanced oil recovery and oil treatment

Details Biochemically enhanced oil recovery and oil treatment Biochemically enhanced oil recovery and oil treatment

1992-06-29

1994-03-29

Suchfield, George A.

Wells

Processes

Using microorganisms

166274, 435245, E21B 4322

Patent

active

052976254

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.

REFERENCES:
patent: 3332497 (1967-07-01), Jones
patent: 3340930 (1967-09-01), Hitzman
patent: 4450908 (1984-05-01), Hitzman
patent: 4640767 (1987-02-01), Zajic et al.
patent: 4780238 (1988-10-01), Premuzic
patent: 4905761 (1990-03-01), Bryant
patent: 5002888 (1991-03-01), Kilbane, II
patent: 5163510 (1992-11-01), Sunde

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