Sparse inversion of the coupled Marchenko equations for simultaneous source wavelet and focusing functions estimation

T. S. Becker, M. Ravasi, D. van Manen, F. Broggini, J. O.A. Robertsson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

The solution of the coupled Marchenko equations for up- and downgoing focusing wavefields allows for the creation of virtual sources inside a mostly unknown medium, which holds great potential for seismic imaging below complex overburdens. However, to solve the coupled Marchenko equations, accurate knowledge and deconvolution of the source wavelet from the reflection response is required. Here, we present an approach that circumvents such requirements and accommodates for band-limited reflection data by solving the coupled Marchenko equations using sparse inversion. Provided with an initial estimate of the source wavelet, the proposed scheme simultaneously inverts for the Marchenko focusing functions and the source wavelet contained in the reflection response. A 1D synthetic example demonstrates that the inversion successfully converges to the true focusing functions and correct source wavelet after a few iterations.
Original languageEnglish (US)
Title of host publication80th EAGE Conference and Exhibition 2018: Opportunities Presented by the Energy Transition
PublisherEuropean Association of Geoscientists and Engineers, EAGEeage@eage.org
ISBN (Print)9789462822542
StatePublished - Jan 1 2018
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2022-09-13

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