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为了能够直接从地震资料中获得横波速度，本文在一维层状介质假设条件下和已知纵波的速度和密度（纵波速度和密度可由文献2中方法获取，密度也可由该地区的经验公式求取），利用常规资料进行平面波分解（τ-p变换）后作为输入记录，再应用模拟退火法及演横波速度。通过理论计算和井数据试算结果表明，在纵波速度和密度没有误差时能够准确的反演出横波速度；在纵波速度有误差的情况下也能得到较好的反演结果。
In order to obtain the S-wave velocity directly from the seismic data, the velocity and density of the P-wave under the assumption of one-dimensional layered media and the known P-wave velocity and density can be obtained by the method in literature 2, and the density can also be obtained from the empirical formula of the region ), Using conventional data plane wave decomposition (τ-p transform) as the input record, then applied simulated annealing and shear wave velocity. Theoretical calculations and well test results show that the S-wave velocity can be accurately inverted when there is no error in P-wave velocity and density, and good inversion results can also be obtained with errors in the P-wave velocity.