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对电测井积分方程中的各积分项进行了理论推导，利用任意闭合曲面对曲面外一点所张立体角为零的特点将电势积分项由对柱体侧面的积分转化为对柱体底面的积分，从而使在纵向采用线性插值条件下给出了电势积分项的解析解．对电流积分项进行了化简，使之由曲面积分化为一维数值积分．利用所得结果计算了双侧向测井仪的井眼校正曲线．
The integral term in the integral equation of electrical logging is deduced theoretically. By using the characteristic that any closed surface has zero solid angle outside the surface, the integral of potential is converted from the integral of the side of the cylinder to the bottom of the cylinder So that the analytic solution of potential integral term is given under the linear interpolation condition in the longitudinal direction. The current integral term is simplified, which makes it integrated from one surface to one dimension. Using the results obtained, we calculated the borehole calibration curve of the dual lateral logging tool.