Abstract

A superior depth-migration solution that uses all the recorded data, including primaries and all orders of multiples, can be adapted from towed-streamer acquisition to ocean-bottom cable (OBC) or ocean-bottom node (OBN) acquisition. The technology has been validated using the 3D/4D data sets acquired by Petrobras for the deepwater Jubarte PRM pilot in Campos Basin. Images constructed from primaries and all orders of sea-surface reflections shows improved subsurface coverage when compared with images from primaries alone and/or mirror migration. The resulting 4D signal also shows a good match with the well trajectory, validating the use of this novel technology for 4D imaging studies.

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