Patent ID: 9134445
Filing Date: 2015-09-15
Classification: G01V

Abstract:
1. A method of processing marine seismic data, the marine seismic data having been acquired in a seismic survey by N over streamers towed through a body of water at a first depth and by M under streamers towed through the body of water at a second depth greater than the first depth, where 0<M<N, where a one of the M under streamers and one of the N over streamers comprise a vertically arranged pair of streamers and where the one of the M under streamers is disposed vertically below the one of the N over streamers the method comprising: using a computer to read a computer readable non-transitory medium having a computer program stored thereon, wherein the computer program comprises computer readable instructions for: a) processing seismic data from the one of the N over streamers and the one of the M under streamers in the vertically arranged pair of streamers using a 2D over/under processing routine to produce a combined over/under data set; b) redatuming the combined over/under data set to the depth of the N over streamers; c) processing the redatumed combined over/under data set with seismic data from a one of the N over streamers not in the vertically arranged pair of streamers to produce a 3D seismic data set.