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Design, implementation and application of the Marchenko Plane-wave algorithm

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posted on 2023-07-10, 05:50 authored by Jan ThorbeckeJan Thorbecke, Mohammed Almobarak, Johno van IJsseldijk, Joeri Brackenhoff, Giovanni Meles, C.P.A. Wapenaar

The Marchenko algorithm can eliminate internal multiples in seismic reflection data. To achieve this a set of coupled equations with four unknowns is solved. These coupled equations are separated into a set of two equations with two unknowns by means of a time-window. The two unknown focusing functions can be solved by an iterative or direct method. These focusing functions, when applied to the reflection data, create virtual point-sources inside the medium. Combining individual virtual point-sources into a plane-wave leads to an efficient computation of images without internal multiples. To use the Marchenko algorithm with plane-wave focusing functions, the time-window that separates the unknowns must be adapted. In this paper the design of the plane-wave Marchenko algorithm is explained and illustrated with numerically modeled and measured reflection data. 


ERC Horizon 2020


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Delft University of Technology

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  • Netherlands

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