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An Inverse Data Space Method for Interbed Multiple Attenuation in the CMP DomainNormal access

Authors: N. Zhang and Y. Wang
Event name: 73rd EAGE Conference and Exhibition incorporating SPE EUROPEC 2011
Session: Seismic Multiple Suppression
Publication date: 23 May 2011
DOI: 10.3997/2214-4609.20149265
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 568.8Kb )
Price: € 20

Summary:
Conventional seismic processing can be considered as implementation in the forward data space, and discrete seismic measurements can be arranged in a data matrix with each column of the data matrix representing a common shot gather while each row of the matrix representing a common receiver gather. For seismic multiple attenuation, the data matrix is replaced with its inverse, the so-called inverse data space method. In the inverse data space, multiples are mapped onto the zero time axis and can be eliminated simply by removing data at zero time. In this paper, we implement this inverse data space method for the internal multiple attenuation in the CMP gathers, so that we can reduce the computational expense dramatically, in comparison with in shot gathers.


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