Artefact-Free Imaging by a Revised Marchenko Scheme

Conference paper (2018)

Authors

L. Zhang Applied Geophysics and Petrophysics - CEG
E.C. Slob Applied Geophysics and Petrophysics - CEG
C.P.A. Wapenaar Applied Geophysics and Petrophysics - CEG ,
Research Group
Applied Geophysics and Petrophysics (CEG) (TU Delft)
Copyright: © 2018 L. Zhang, E.C. Slob, C.P.A. Wapenaar, J.R. van der Neut
DOI: https://doi.org/10.3997/2214-4609.201801658
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Published Date

2018

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Applied Geophysics and Petrophysics

Abstract

A revised Marchenko scheme that avoids the need to compute the Green’s function is presented for artefact-free image of the subsurface with single-sided reflection response as input. The initial downgoing Green’s function which can be modelled from a macro model is needed for solving the revised Marchenko equations instead of its inverse. The retrieved upgoing focusing function can be correlated with the modelled initial downgoing Green’s function to image the medium without artefacts. The numerical example shows the effectiveness of the revised scheme in a 2D layered case.

Files

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- Embargo expired in 14-12-2018