Electrokinetic phenomena in oilfield development
油田开发过程中的动电现象研究

Flowing through micro-channel, the fluid streaming potential is strongly influenced by the pressure imposed on the two ends of micro-channel and electrolyte concentration. Theory-based of electric double layer and electrokinetic, this paper states the main factors causing electrokinetic phenomenon are abnormal pressure and salinity decrease and multiphase flow in oil field development, and investigates the positive and negative changes of self-potential which is the expression of the streaming potential, and high resistivity of waterflooded zone.