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从毛细管双电层理论出发，结合孔隙介质的电渗流理论，建立了直流电场作用下油水两相的渗流方程。在恒压降注水条件下，利用有限差分法对假定油藏进行了数值模拟计算。结果表明，在直流电场的作用下，水相渗透率降低，油相渗透率提高；在水驱油过程中，直流电场使含水率下降，产油量上升；在含水率为２０％～７０％时用直流电场处理水驱油藏，控水效果好。用直流电场处理高含水油藏，增产效果明显，在含水８０％时用１００Ｖ／ｍ的直流电场对油藏作用３个月，采收率可提高１．６％左右，且采收率的提高与渗透率无关。
Based on the capillary double-layer theory, combined with the theory of electro-porous flow in porous media, the seepage equation of oil-water two-phase under the action of direct electric field is established. Under the conditions of constant pressure drop and water injection, the finite difference method is used to simulate the assumed reservoir. The results show that under the action of DC electric field, the permeability of the aqueous phase decreases and the permeability of the oil phase increases. During the process of water flooding, the DC electric field decreases the water content and increases the oil production. When the water content is between 20% and 70% When using DC electric field to treat water flooding reservoir, water control effect is good. Using DC electric field to treat high water-cut reservoirs, the stimulation effect is obvious. When the water content is 80%, the reservoir will be affected by DC electric field of 100V / m for 3 months and the recovery rate will increase about 1.6%, and the recovery rate will increase Has nothing to do with permeability.