When polymer relative molecular mass and its distribution width are the same, the polymer displacement efficiency increases with the increment of the core permeability variation factor.
当聚合物的相对分子质量及其分布宽度相同时，随着岩心渗透率变异因数的增大，其聚合物驱采收率也随之增加。
Effects of bulk density on the two parameters were analyzed. The results showed that saturated mass water content decreased with the increment of bulk density and was inverse to bulk density.
结果表明：饱和重量含水量随容重的增加而减小，与容重成反比关系，饱和导水率随着容重的增加呈现幂函数形式递减。
Effects of bulk density on the two parameters were analyzed. The results showed that saturated mass water content decreased with the increment of bulk density and was inverse to bulk density.
结果表明：饱和重量含水量随容重的增加而减小，与容重成反比关系，饱和导水率随着容重的增加呈现幂函数形式递减。
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