Abstract:In the areas where the variation of surface elevation is not large but the variation of thickness of weathered and subweathered areas and velocity in lateral direction is larger,the issue of mid and long wavelength static corrections is one of issues that often troubles seismic data processing,especially in the area developing low-amplitude structure,causing bad solution of static corrections,which affects the effective identification of low-amplitude structure.Through test and correlation of practical seismic data in a BGP overseas block,the paper showed that expanding the generalized reciprocal static corrections method can better solve the issue of long wavelength static correction affecting the low-amplitude structural area