论文部分内容阅读
采用改进的声压—速度有限差分（ＰＶＦＤ） 数值模拟方法，着重研究水平薄层及裂缝对声波测井中全波列的影响。数值模拟了井外出现多种非对称水平薄层情况下的阵列声波记录，并模拟计算和绘制了移动测井仪器记录的实测声波变密度图。通过（ 斯通利波限幅） 放大，各类波通过界面和层的传播都得到精细的描述。
The improved method of sound pressure-velocity finite difference (PVDD) numerical simulation is used to study the influence of horizontal thin beds and fractures on the wave series in acoustic logging. The numerical simulations of array acoustic wave recording under the condition that there are many asymmetric horizontal thin layers outside the well are carried out. The actual measured acoustic wave density densities recorded by the mobile logging instrument are simulated and plotted. By (magnification of Stoneley waves) amplification, the propagation of various waves through the interface and the layers is finely described.