地震资料反演是预测砂体的主要手段。稀疏脉冲阻抗反演是目前最流行应用的波阻抗反演方法。该方法可以解决井较少的情况下进行一些定性的预测砂体展布。从实际例子出发,通过实际问题设置反演参数,特别的强调了质量控制(QC)参数对反演结果的影响程度,这些参数选取的正确与否直接控制了反演成果的质量。在此基础上,预测了YX地区砂四段三砂组砂体的展布,与测井资料符合较好。 Seismic data inversion is the main means of predicting sand body. Sparse impulse impedance inversion is the most popular wave impedance inversion method. This method can solve some qualitatively predicted sand distributions with fewer wells. Starting from practical examples, the inversion parameters are set through practical problems. In particular, the influence of quality control (QC) parameters on the inversion results is emphasized. The correctness of these parameters directly controls the quality of the inversion results. On this basis, the prediction of the distribution of sand body of the Sand-4 Member Sandstone in YX area is in good agreement with the logging data.