西峰油田庆阳区储层润湿性及其对油田开发的影响

润湿性是和岩石孔隙度、渗透率、饱和度同等重要的储层基本参数之一。润湿性不但改变了油水在孔隙中的分布状况,引起岩石电性的变化,加大了油层识别的难度,而且影响着油田最终采收率。在油田开发中,利用润湿性反转这一原理,可以提高原油采收率。

Discussion on the Reservoir Wettability of Qingyang Area of Xifeng Oilfield and Its Influences on Oilfield Development

The wettability,which is one of basic parameters of the reservoir,is as important as the porosity,permeability and saturation.The wettability not only changes the distribution of oil water in the pores,causing changes of rock electricity and increasing the difficulty of reservoir identification,but also affects the final recovery ratio of the oilfield.In oilfield development,the use of the principle of wettability reversal can improve the recovery ratio of crude oil.