针对井周的非均质地层模型，利用三维有限元方法模拟了方位梯度电极系的测井响应。在非均质程度比较小的情况下，各个方位上的响应之间差别不大，与真实的电阻率分布差别也不大；反之，则差别很大。所测得的响应远远低于较高的真电阻率值，而是靠近较低的真电阻率值，因此，有必要对测井响应进行校正。利用非线性反演方法求取真实的电阻率分布，克服了传统的校正方法的弊端。数值模拟的结果表明，此方法是可行的。 Aimed at well heterogeneity strata model, well logging response of azimuth gradient electrode system was simulated by three-dimensional finite element method. When the degree of heterogeneity is relatively small, there is not much difference between the responses in all directions, and the difference with the real resistivity distribution is not large; on the contrary, the differences are quite different. The measured response is much lower than the higher true resistivity value, but closer to the lower true resistivity value, so it is necessary to correct the well logging response. The non-linear inversion method is used to get the real resistivity distribution, which overcomes the disadvantages of the traditional calibration methods. The numerical simulation results show that this method is feasible.