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本文研究了直流电场作用下的水驱油效果。当生产井为正极，注入井为负极时．直流电位差的作用使油相渗透率增加、水相渗透率降低，使水油比降低、采收率增加，油相渗透率及采收率与电位梯度成正比。电场作用同时使粘土矿物产状由有序向无序变化且总含量减少。
This paper studies the effect of water flooding under DC electric field. When the production well is positive and the injection well is negative. The effect of the DC potential difference increases the permeability of the oil phase and decreases the permeability of the water phase, so that the ratio of water to oil decreases and the recovery rate increases. The oil phase permeability and oil recovery rate are proportional to the potential gradient. The effect of electric field at the same time make the clay minerals from ordered to disorder changes and reduce the total content.