Author:
Zhang Xiaoqian,Yan Zheng,Guo Qi
Abstract
Abstract
The flow potential effects in oil-saturated pore medium are widely present in seismic exploration and electrokinetic logging, and the measurement of flow potential effects can be used to evaluate the properties of formations and fluids. In this paper, the momentum equation and current continuity equation that describe fluids in pore medium are adopted, and with the electric double layer theory of oil-water pore medium is combined with. In the capillary model considering the wettability of porous media, the expressions of the electrokinetic coupling relationship of oil-water saturated pore medium under steady conditions are derived, and the influence of electrochemical parameters of oil-water saturated pore medium on the flow potential effect under steady conditions is discussed.