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Fast free surface multiples attenuation workflow for three‐dimensional ocean bottom seismic data
Author(s) -
Traub Bärbel,
Nguyen Anh Kiet,
Riede Matthias
Publication year - 2009
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 - 10.1111/j.1365-2478.2008.00753.x
Subject(s) - multiple , attenuation , geology , workflow , radon , environmental geology , radon transform , regional geology , data processing , mineralogy , algorithm , computer science , optics , hydrogeology , geotechnical engineering , mathematics , quantum mechanics , database , physics , arithmetic , metamorphic petrology , artificial intelligence , telmatology , operating system
Water multiples can be very strong and contaminate the primary reflections. This can cause problems in the processing flow and the interpretation of the subsurface image. Hence, multiples suppression is an important part of the preprocessing flow. We present a fast workflow for attenuation of free surface related multiples for 2D and 3D ocean bottom seismic data based on the wave equation approach. Included in the workflow are: 1. Calibration of the pressure and vertical velocity components by using wavefield splitting. 2. Data interpolation by using offset projection. 3. Fast Radon transform by using fast fractional Fourier transform. Advantages of this workflow are that it is fast, efficient and the only requirements are the recording of both pressure and vertical particle components at some point below the source in the water column.