用声波能量识别渗透层

通过处理实测的声波全波列资料，得到了地层纵波、横波、斯通利波的速度和幅度。将它们与其它测井资料对比，发现斯通利波的幅度及其与纵波幅度的比值与地层的渗透性有关。

Identifying Permeable Formation Using Acoustic Logging Data

By processing the field data of full wavetrain acoustic logging, the velocities and amplitudes of formation compressional shear and Stoneley waves are obtained. By comparison with other logging data, the amplitude of Stoneley wave and the ratio of Stoneley wave amplitude to compressional wave amplitude are related to formation permeability. In well permeable zones, the amplitude of Stoneley wave is lower, that of the compressional wave higher and the ratio small. However, in impervious zones, the amplitudes and the ratio are quite the reverse. Based on this principle and combined with other logging data, zones with the same lithology but with different permeability can be differentiated. The interval transit time of P and S waves extracted and formation porosity can be used to determine dynamic elastic formation parameters.