Abstract：In seismic data processing,the refraction staticcorrections are generally used to eliminate the in-fluence of weathered and sub-weathered zones andalso are used to solve the issue of high-frequencyand low-frequency static correction. But the ordi-nary refraction static corrections generally computeits-own statics for each line individually, which eas-ily resulted in large mis-tie of statics. In accord-ance with the issue, the paper found using pseudo-3-D plus delay time to compute the refraction staticcorrections of 2-D data through analyzing the near-surface model's parameters participating the tom-putation at cross points of each line by using iso-late single-line algorithm. The paper expoundedtheoretically in detail the refraction static correc-tions by pseudo-3-D delay time approach and point-ed out by the results of real case application thatthe approach is feasible and effective.
