Schlumberger Technology Corporation

Anthony Curtis

Julian Edward Kragh

Gabriele Busanello

Embodiments of the invention provide a method of processing marine seismic data, the data having been acquired using a 'dense over/sparse under' streamer array having N over streamers disposed at a first depth and M under streamers disposed at a second depth greater than the first depth, where 0&#x3c;M&#x3c;N. The method comprises: a) processing seismic data for one of the over streamer target locations and seismic data for one of the under streamer target locations; b) processing seismic data for another of the over streamer target locations; and c) combining the result of (a) and the result of (b). The one of the over streamer target locations and the one of the under streamer target locations may lie in a vertical plane.

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Tunbridge Wells, United Kingdom

Anthony Curtis