Abstract
Summary The subsurface of deep water offshore Angola contains high-levels of geological complexity and thus presents considerable challenges to accurate high resolution seismic imaging. In an attempt to overcome these challenges a recent wide-azimuth towed streamer (WATS) seismic survey was acquired over 800km 2 of this area. As a result of the time restrictions associated with the drilling schedule, a high-integrity fast-track processing sequence was applied to the data processing. One of the key components of this sequence was to apply wave-equation based 3-D surface related multiple elimination (3-D SRME) on board the vessel during the shooting. In this paper we review some of the difficulties faced in applying such a process on WATS data during acquisition and show examples of the applications of the method to data that exhibit highly complex multiples.
Published Version
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