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利用叠后地震数据反演来估算地层的波阻抗，进而估算地层物性参数（密度、孔隙率、泥质含量），这一直是地质学家追求的目标。本文介绍一种CCFY波阻抗反演技术，该技术具有纵、横向分辨率高，解的确定性较好，可反演多种参数（密度、速度、孔隙率）剖面等优点。利用该技术较有效地解决了陕甘宁盆地某地区三叠系长6油组渗透性砂岩识别的难题，其预测地层厚度的符合率达75％以上，为油田开发井位的布置提供了很有用的参考资料。
Estimating the wave impedance of the formation using post-stack seismic data inversion and then estimating the physical properties of the formation (density, porosity, and shale content) has long been the goal pursued by geologists. In this paper, we introduce a CCFY wave impedance inversion technique that has the advantages of high resolution in both horizontal and vertical directions, good determinability of the solution, and the inversion of multiple parameters (density, velocity and porosity). The technique can effectively solve the problem of permeability sandstone identification of Chang 6 oil group in Triassic in a certain area of Shaanxi-Gansu-Ningxia basin. The coincidence rate of predicted formation thickness is more than 75%, which provides a good arrangement for the well location of oilfield development Useful reference.