Nutrient injection method for subterranean microbial processes

Details Nutrient injection method for subterranean microbial processes Nutrient injection method for subterranean microbial processes

E - Fixed Constructions

21

B

E21B 43/22 (2006.01) C09K 8/90 (2006.01)

Patent

CA 2056007

The present invention provides a method of injecting nutrients into a subterranean formation in order to achieve a desired in-situ microbial objective. Sources of indivi- dual nutrient components which are deficient in the for- mation are sequentially injected so that a complete nutrient medium capable of sustaining substantial microbial activity is formed in the formation upon injection of the last of said sources. Said sources are preferably injected into the formation in order of decreasing quantitative formation retainability.

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