Quality control and optimization of partial-stack datasets in pre-stack seismic inversion

High quality partial-stack seismic data are the foundation of pre-stack inversion; however, the mis-tie and the phase displacement of partial-stack seismic datasets often lead to unconfident elastic parameters. It's very necessary for seismic datasets to control quality in order to improve the reliability of different offset gathers. In the paper, partial-stack seismic could be adjusted based on the standard of threshold value of residual quasi-correlation, and then seismic processing of phase correction and limited time shift would be executed based on the method of static graphs and recursive interpolate. The actual data inversion shows that under the responsible quality control, the partial-stack datasets correction processing could improve the inversion quality obviously.