Bacteriogenic mineral plugging

Details Bacteriogenic mineral plugging Bacteriogenic mineral plugging

1991-03-05

1992-09-01

Britts, Ramon S.

Wells

Processes

Using microorganisms

166273, 166274, E21B 4322

Patent

active

051431556

ABSTRACT:
A process is provided for reducing the porosity/permeability of a subsurface geological formation. The process generally involves the precipitation of minerals from an aqueous system. The minerals are precipitated in the presence of microorganisms. The process may be suitably utilized to enhance the recovery of oil from oil reservoirs or to control the flow of a spilled contaminant in a reservoir.

REFERENCES:
patent: 4446919 (1984-05-01), Hitzman
patent: 4460043 (1984-07-01), Thompson et al.
patent: 4475590 (1984-10-01), Brown
patent: 4558739 (1985-12-01), McInerney et al.
patent: 4561500 (1985-12-01), Thompson et al.
patent: 4799545 (1989-06-01), Silver et al.
patent: 4905761 (1990-03-01), Bryant
patent: 4947932 (1990-08-01), Silver et al.
patent: 4971151 (1990-11-01), Sheehy

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