Method for prediction of surface related multiples from...

Details Method for prediction of surface related multiples from... Method for prediction of surface related multiples from...

G - Physics

01

V

G01V 1/28 (2006.01)

Patent

CA 2622703

Particle motion sensor signals and the pressure sensor signals data from a towed marine seismic streamer are combined to generate an up-going pressure wavefield component and a down-going particle motion wavefield component. The down-going particle motion wavefield component is extrapolated from the receiver position depth level to the source position depth level. The up-going pressure wavefield component is multiplied by the extrapolated down-going particle motion wavefield component, generating a first product. Then, n th order surface related multiples in the pressure wavefield are iteratively calculated utilizing a product of (n-1)th surface related multiple free data and the extrapolated down-going particle motion wavefield component. The calculated n th order surface related multiples are iteratively subtracted from the recorded pressure wavefield, generating the n th order surface related multiple free data.

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