The oil-gas system and the porous media are interaction system. The three phases of vapor, liquid and solid (rock) will co-exist in the porous media when the pressure is under the saturation pressure.
油气体系和储层多孔介质是一个相互作用的系统，当地层压力低于饱和压力时，储层中同时存在气、液、固(指岩石)三相。
The interaction energy between adsorbent and adsorbate was obtained by solid-liquid interaction equation.
利用固—液相互作用方程，求取了吸附剂—吸附质相互作用能。
Further analysis indicates that the above phenomena mainly result from the characteristic interaction between the liquid substrates and the solid films.
分析认为：这些现象是由于液体基底与固体薄膜之间的特征相互作用所致。
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