Bacteria and its use in a microbial profile modification...

Details Bacteria and its use in a microbial profile modification... Bacteria and its use in a microbial profile modification...

E - Fixed Constructions

21

B

195/40, 195/48,

E21B 33/138 (2006.01) C12N 1/20 (2006.01) E21B 43/22 (2006.01)

Patent

CA 1309366

ABSTRACT OF THE DISCLOSURE The present invention is a bacteria and its use in a Microbial Enhanced Oil Recovery (MEOR) process. Any one of two newly isolated strains of bacteria are injected, along with a nutrient solution, downhole in a petroleum reservoir to modify its profile. This bacteria has the capability to plug the zones of higher permeability within the reservoir so that a subsequent waterflood may selec- tively enter the oil bearing less permeable zones. The injected water is used to drive this oil to an area where it may then be recovered.

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