An Algorithm for Semi-Automated 3D Horizon Velocity Analysis

P061 AN ALGORITHM FOR SEMI-AUTOMATED 3D HORIZON VELOCITY ANALYSIS Abstract 1 Accurate computation of reflected traveltimes is a critical issue for the depth imaging [4]. In order to account for wide-azimuth distribution of source-receiver pairs the optimization with respect to more than one traveltime surface parameter is usually required thus making difficult algorithms’ application to processing/imaging of large data volumes. When making the horizon-consistent analysis of traveltimes a detailed information about zero-offset time surface picks obtained in real-rime with up-to-date interactive facilities can significantly enhance the analysis accuracy and performance. We present a 3D horizon-consistent velocity analysis algorithm where the