Multiple Elimination on Wide Azimuth Towed Streamer Data by Extended Wavefield Extrapolation

C013 Multiple Elimination on Wide Azimuth Towed Streamer Data by Extended Wavefield Extrapolation G. Xia* (BP America Inc.) & K. Matson (BP America Inc.) SUMMARY Wide Azimuth Towed Streamer (WATS) data provides a step-change in our ability to illuminate complex subsurface structures. The WATS data with rich diversity of azimuth and offset is effective at attenuating multiples – through simple stacking of post-migration image gathers. However the effectiveness of stacking degrades for exploration scale sampling. Moreover simple stacking precludes prestack analysis for velocity estimation and angle dependent amplitudes on the image gathers. Therefore it is desirable to develop better techniques