Normal loft

Dip-moveout correction of VSP data is put forward to solve the problem thatVSP-CDP conversion and VSP migration are unsatisfactory when the seismic reflec-tors have quite big dip angle- The method makes VSP dip correction followed byVSP-CDP conversion to gUarantee correct position of seismic reflection points.

该方法是先将VSP资料进行倾角校正，然后再作VSPCDP变换，从而保证反射点的准确归位。