Abstract

In conventional 3D seismic data processing, we typically sort the data in a number of 3D common-offset volumes, each offset volume comprising a limited range of offsets, but in doing so, we bin across any variation in azimuth that may exist in the recorded data (Williams and Jenner 2001). Ideally, it would be best not to bin across azimuth at all, and to work with fully sampled offset vector tile (OVT) data, as was demonstrated for OBC data over this field last year (Valler et al., 2012). One of several compromise solutions to full azimuth-offset sampling is the multiazimuth (MAZ) acquisition approach, where we collect a set of mono-azimuth surveys, each shot with a different orientation, and proceed to process each of these data sets in tandem, leading up to a MAZ velocity model building tomographic solution.