Indigenous microorganism activation and exogenous microorganism intensified oil production method in offshore oilfield
A technology of endogenous microorganisms and enhanced oil recovery, applied in chemical instruments and methods, production fluids, earth drilling and production, etc., can solve problems such as the reduction of oil displacement efficiency of endogenous microorganisms, the explosion of flammable mixtures, and the destruction of abandoned gas injection pipelines. Achieve the effect of enhancing oil washing and oil displacement, improving fluidity and increasing interaction
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[0038] Example 1
[0039] See attached figure 1 . A method for the activation of endogenous microorganisms in offshore oilfields and enhanced oil recovery of exogenous microorganisms, which is applied in the offshore oilfield to increase the oil recovery process: exogenous microorganism bacteria liquid and activator are injected into the oil reservoir for oil displacement.
[0040] 1. Selection of oil wells:
[0041] The basic situation of selecting a block in the oilfield as a block suitable for microbial flooding is as follows:
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