可以看出，三对孔的反演结果有很好的一致性，40m处为泥岩和砂岩的分界面

It can be seen that the inversion results of the three pairs of holes are very consistent. The 40m point is the interface between mudstone and sandstone, which is consistent with the measurement results in Figure 9. On this basis, it was compared with the resistivity logging curve (purple) and sonic logging curve (red) in the ZK2 hole. The results are shown in Figure 12. Because only the data below 20m are processed during the inversion, 0 ~20m belongs to the extrapolation of the inversion results, so it is inconsistent with the resistivity log curve in the shallow layer, while the change rules at other depths are exactly the same.

It can be seen that the inversion results of the three pairs of holes have good consistency, with the interface between mudstone and sandstone at 40m, which is consistent with the measurement results in Figure 9. On this basis, a comparison was made with the resistivity logging curve (purple) and acoustic logging curve (red) in ZK2 hole. The results are shown in Figure 12. Since only data below 20m is processed during inversion, 0-20m belongs to the extrapolation of inversion results, which is inconsistent with the resistivity logging curve in shallow layers, while the variation patterns at other depths are completely the same.

It can be seen that the inversion results of the three pairs of holes are very consistent, and the interface between mudstone and sandstone is at 40m, which is consistent with the measurement results in Figure 9. On this basis, it is compared with the resistivity logging curve (purple) and acoustic logging curve (red) in ZK2 hole, and the results are shown in Figure 12. Because only the data below 20m are processed during inversion, 0~20m belongs to the extrapolation of inversion results, so it is inconsistent with the resistivity logging curve in the shallow layer, but the variation law at other depths is completely the same.