Comparative Analysis of C-Wave Receiver Static Estimation in Onshore Data

Receiver static corrections are still a challenging problem in converted wave seismology and to overcome it several estimation techniques have been proposed, becoming effective in most of practical applications. These methods provide a non unique solution with no clues about which one is the optimal, except a correlation with the P-wave image. In order to obtain a C-image of a 2D-3C survey acquired in the Middle Magdalena basin in Colombia, four methods for receiver statics estimation were applied, providing four different receiver statics. Cwave refraction and receiver function methods are based in the wave equation solution whereas P-source statics scaled by a 2.2 factor and the widely used hand picking on common receiver stacks methods are not. For each method a receiver stack was obtained and compared with the P-wave receiver stack image.