Static correction method for improving small-amplitude structure prediction precision for complex surface structure

The invention provides a static correction method for improving small-amplitude structure prediction precision for a complex surface structure, and the method comprises the following steps: S1, the fine first arrival time pickup of data in a whole work area is carried out, and the three-dimensional grid refraction tomography static correction is carried out in combination with micro-logging interpretation data, a fine near-surface velocity model and low-speed-reduction-zone thickness distribution are obtained through inversion; S2, after a micro-logging constraint tomography inversion near-surface velocity model is obtained, static correction value calculation is carried out, and medium and long wavelength static correction which is not completely solved can be corrected; s3, after the static correction value is applied, earth surface consistency reflected wave residual static correction is carried out, and the static correction problem of the work area can be fully solved. 本发明提供一种针对复杂地表结构提高小幅度构造预测精度的静校正方法，其包