Both the shop experiment and field test showed that the wettability alteration agents have the ability to reduce the injection pressure and enhance oil recovery.

室内实验和矿场试验都说明，润湿性反转剂具有降压增注和提高原油采收率的效果。

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Thus oil recovery is enhanced. The mechanism of molecular filming agent mainly includes absorption, wettability alteration, diffusion and capillary imbibition etc.

分子膜剂作用机理主要表现在吸附作用、润湿性改变、扩散作用、毛细管自吸作用等几个方面。

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The adsorption of asphaltenes on the surfaces of reservoir rocks and the wettability alteration caused by adsorption are studied experimentally using two asphaltene samples prepared from crude oils.

选用两种原油沥青质样品，对沥青质在岩石孔隙表面的吸附及吸附所引起的润湿性变化进行了实验研究。

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