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A method for deghosting of data recorded with a streamer of arbitrary shape in rough sea conditionsNormal access

Authors: M. Denisov, A. Egorov and A. Burtsev
Journal name: Geophysical Prospecting
Issue: Vol 66, No 9, November 2018 pp. 1702 - 1713
DOI: 10.1111/1365-2478.12694
Organisations: Wiley
Language: English
Info: Article, PDF ( 6.69Mb )

Summary:
Deghosting of pressure-only data has become a routine in marine seismic processing. Most existing techniques suffer from noise susceptibility or excessive simplification of the used ghost model, which leads to difficulties in removing the ghost waves. The algorithm presented in this paper is based on the wavefield extrapolation theory, and is capable of taking into account arbitrary streamer shapes and rough sea surfaces. The computations are performed in the frequency domain and come down to solving systems of linear equations. Regularization and data-adaptive statistical optimization of the parameters prevent noise amplification. We describe the theory of the method and test it against synthetic and

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