Situ microbial plugging process for subterranean formations

Wells – Processes – Using microorganisms

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166292, 166294, 435242, E21B 4322, E21B 33138

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active

045587396

ABSTRACT:
Subterranean paths of water flow are impeded or changed by the facilitation of microbial growth therein. Either indigenous bacterial growth may be stimulated with nutrients or the formation may be first seeded with bacteria or their spores which inhibit fluid flow after proliferation. These methods and bacteria are usable to alter the flow of water in a waterflooded oil formation and to impede the outflow of contaminated water.

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