薄互储集层对声波全波列测井波形的影响

针对孔隙薄互层模型进行声压－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：各组分波在任意分界面处者会产生反射波，其中低频斯通利波的反射最为突出；

The influence of thin interbedded-reservoir upon the waveform of acoustic all-wave train logging

Having made the finite-difference numerical modeling of acoustic pressure versus velocity by using porous thin interbed model, we found that horizon interface,low-velocity thin interbed, high-velocity thin interbed, thin interbeds and fractures produce following responses in acoustic all-wave train logging:. Each component wave group brings reflection waves at any interface, of which the reflection wave due to low-frequency Stoneley wave is most highlighted one.. When a thin interbed is thicker than 0. 2m, the upper and down interfaces generate two groups of reflection waves, by which both the bed thickness and reservoir characteristic may be known.. When a thin interbed is thinner than 0. 1m, two groups of reflection waves merge into one, reflection energy weakens, and their waveforms are similar to those which appear in the case of fractures existing outside a borehole.