Study on The Pilot Test with Microbial Profile Modification After Polymer Flooding in Daqing Oil Field
2007
In order to further enhance oil recovery of the reservoirs after polymer flooding, two strains of bacterium that could be used on microbial profile modification have been screened. The bacterium were separated from the fluid sample produced within the commercial polymer flooding blocks of Daqing oilfield, and named DT-1 and DT-2. The evaluation of performance showed that these two microorganisms could not only adapt to the special conditions of the reservoirs after polymer flooding, but also could grow well with the in-situ microorganisms.
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