Patent ID: 9671511
Date: 2017-06-06
CPC Classifications: G01V

Claim:
1. A method for acquiring and receiver de-ghosting marine seismic data, comprising: acquiring seismic trace data recorded from a common shot by at least two seismic streamers, the at least two streamers adjacent to one another in the cross-line direction and vertically offset from one another, the vertical offset at least different enough to record combinations of seismic signal frequencies which are substantially unaffected by receiver-side ghosting; selecting a reference seismic trace from the seismic trace data from a first streamer of the at least two streamers; selecting a candidate seismic trace from the seismic trace data from a second streamer of the at least two streamers, the second streamer adjacent to and vertically offset from the first streamer, the candidate seismic trace being proximal to the reference seismic trace; applying normal move-out (NMO) correction to the reference seismic trace, whereby an NMO target trace is created; applying NMO and vertical datum correction to the candidate seismic trace, whereby a synthesized candidate trace is created; and performing de-ghosting of the NMO target trace by: