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Utilization of Multiples in Simultaneous Image Building and Velocity EstimationNormal access

Authors: A.J. Berkhout, D.J. Verschuur, X.R. Staal and M. Davydenko
Event name: 77th EAGE Conference and Exhibition - Workshops
Session: WS05 - Wave Equation Based Migration Velocity Analysis
Publication date: 01 June 2015
DOI: 10.3997/2214-4609.201413497
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1002.73Kb )
Price: € 20

Summary:
In the past the seismic industry has made large investments in the removal of multiples from the seismic response ('data linearization'), with the purpose to make the data suitable for our linear velocity estimation and linear migration algorithms. Now we are beginning to understand that multiples contain most valuable information that should not be removed. Instead they should be utilized, making velocity estimation and migration fully consistent with the underlying physics. In this presentation it is shown that velocity estimation can function as an integral part of the nonlinear migration process: Joint Migration Inversion (JMI). It is also shown that JMI is insensitive to the initial velocity distribution.


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