界面张力的降低可提高毛管数，从而使残余油饱和度下降，提高原油采收能力。
Reduction of interfacial tension can increase capillary number, accordingly, reduce saturation of irreducible oil, enhance ability of oil recovery.
界面张力的降低可提高毛管数，从而使残余油饱和度下降，提高原油采收能力。
Reduction of interfacial tension can increase capillary number, accordingly, reduce saturation of irreducible oil, enhance ability of oil recovery.
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