Wells – Processes – Using microorganisms
Patent
1991-09-30
1992-12-29
Suchfield, George A.
Wells
Processes
Using microorganisms
166294, 166309, 405128, 405264, 405266, 405267, 435281, E02D 3100, E21B 33138, E21B 4322
Patent
active
051743787
ABSTRACT:
A microbial system is provided for selective plugging of permeable regions of a subterranean formation, for use in conjunction with injection of surfactant-containing foams. Bacteria indigenous to the target formation are isolated, and selected for ability to degrade the surfactant of interest. Small, non-adherent ultramicrobacteria, or UMB, are prepared from the selected culture by starvation. The UMB and the surfactant-containing foam are then injected into the target formation. The surfactant allows the foam to penetrate into the formation. The UMB then revive to their vegetative state, degrade the surfactant and produce exopolymer, thus plugging the formation.
REFERENCES:
patent: 1753641 (1930-04-01), Beckman
patent: 1998756 (1936-04-01), Grebe et al.
patent: 3547199 (1970-12-01), Froning et al.
patent: 3598181 (1971-08-01), Wegner et al.
patent: 3893511 (1975-07-01), Root
patent: 4558739 (1985-12-01), McInerney et al.
patent: 4799545 (1989-01-01), Silver et al.
patent: 4800959 (1989-01-01), Costerton et al.
patent: 4818406 (1989-04-01), Sawchuk et al.
Anderson Carol P.
Blenkinsopp Sandra A.
Costerton John W. F.
Cusack Francene
Cyr Theodore J.
Alberta Oil Sands Technology and Research Authority
Suchfield George A.
LandOfFree
Microbial manipulations of surfactant-containing foams to reduce does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microbial manipulations of surfactant-containing foams to reduce, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microbial manipulations of surfactant-containing foams to reduce will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1881595