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。
2
The fluid flow properties and mechanism of fluid flow in low-permeability reservoir with fractured sandstones are complicated. The spontaneous imbibition of water is very important for oil recovery.