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Combining two seismic experiments to attenuate free‐surface multiples in OBC data*
Author(s) -
Ikelle Luc T.
Publication year - 1999
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1046/j.1365-2478.1999.00125.x
Subject(s) - multiple , attenuation , reflection (computer programming) , geology , environmental geology , regional geology , economic geology , seismology , acoustics , synthetic data , scattering , remote sensing , computer science , optics , algorithm , telmatology , physics , arithmetic , mathematics , tectonics , programming language
The current inverse scattering solution used for multiple attenuation of marine seismic reflection data assumes that sources and receivers are located in the water. To adapt this solution to the ocean‐bottom cable (OBC) experiment where receivers are located on the sea‐floor, we have proposed combining the conventional marine surface seismic reflection data (streamer data) with OBC data. The streamer data add to the OBC data some of the wave paths needed for multiple attenuation. This combination has allowed us to develop a multiple attenuation method for OBC data which does not require any knowledge of the subsurface and which takes into account all free‐surface multiples, including receiver ghosts. A non‐linear synthetic data example consisting of pressure and particle velocity fields is used to illustrate the procedure.