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建立了外加电场作用下储层孔隙中流体的电动 -水力渗流模型 ,并通过实验研究了外加电场作用下的电动-水力渗流特性 .结果表明 ,极性流体在储层孔隙中的电动 -水力渗流特性除了与其粘滞阻力、压力、重力等因素有关外 ,还与自然电场等因素有关 ,且外加电场可改变流体的渗流特性 .将电动力方向与水动力方向一致的电场定义为正向电场 ,反之则为反向电场 .在正向电场作用下 ,阻力因数小于 1,渗流速度随着电场强度的增大而增加 ;在反向电场作用下 ,阻力因数大于 1,渗流速度随电场强度的增大而减小
The electro-hydraulic seepage model of the fluid in the pore of the reservoir under the action of an electric field is established and the electro-hydraulic seepage characteristics under the action of the applied electric field are also studied experimentally.The results show that the electro-hydraulic seepage flow of the polar fluid in the reservoir pore In addition to its viscous resistance, pressure, gravity and other factors, but also with the natural electric field and other factors, and the applied electric field can change the fluid seepage characteristics of the electric force direction and hydrodynamic direction of the electric field is defined as the forward electric field, The reverse electric field is the reverse electric field.When the forward electric field is applied, the resistance factor is less than 1, and the seepage velocity increases with the increase of electric field strength. Under the reverse electric field, the resistance factor is greater than 1, and the seepage velocity increases with the increase of electric field Big and small