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针对孔隙薄互层模型进行产压—速度有限差分数值模拟，发现层界面、低速薄夹层、高速薄夹层、薄互层及裂缝对声波全波列波形显示出以下特征：各组分波在任意分层界面处都会产生反射液，其中低频斯通利波的反射最为突出；当薄层厚度大于0．2m时，在上、下层界面处会出现两组反射液，利用反射波信息可分辨出薄层厚度，评价其储集特性；当薄层厚度小于0．1m时，两级反射波逐渐重叠变为一组反射波，反射波能量也逐渐减弱，并与井外存在裂缝时的波形特征相似。
According to the pressure-velocity finite difference numerical simulation of the thin interbed model, it is found that the waveforms of the full wave train of the acoustic wave show the following characteristics: the interface of the layer, the thin layer of the low velocity, the thin layer of the high velocity, the thin interbed and the crack, Reflectance liquid is generated at the interface of stratification, and the reflection of low-frequency Stoneley wave is the most prominent. When the thickness of thin layer is more than 0.2m, two sets of reflection fluid appear at the interfaces of the upper and lower layers, When the thickness is less than 0.1m, the two reflected waves gradually become a set of reflected waves, and the reflected wave energy also gradually weakened, and with the waveform characteristics when there is a crack outside the well similar.