Decomposition of the Green's function using the Marchenko equation

Joeri Brackenhoff, Joost van der Neut, Kees Wapenaar

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The Marchenko equation can be used to retrieve the Green’s function at depth as a full function or decomposed into its upand downgoing parts. We show that the equation can be rewritten to create a decomposition scheme that can decompose a full wavefield, that was recorded at depth, into its up- and downgoing parts. We show that this can be done without a smooth velocity model that the Marchenko scheme requires and without any knowledge of the medium properties that traditional decomposition methods require. Instead we only need a the reflection response and a wavefield that has been recorded at the
surface due to a source at depth or (by using source-receiver reciprocity) that was measured down in a borehole due to a source at the surface. We also validate our results by comparing them to directly modeled up- and downgoing wavefields.
Original languageEnglish
Title of host publicationProceedings of the 87th SEG annual meeting, expanded abstracts
EditorsA. Mihai Popovici, S. Fomel
PublisherSEG
Pages5593-5597
DOIs
Publication statusPublished - 2017
Event87th SEG annual meeting - Houston, United States
Duration: 24 Sep 201729 Sep 2017
Conference number: 87
https://seg.org/Annual-Meeting-2017

Publication series

NameSEG Technical Program Expanded Abstracts 2017
ISSN (Electronic)1949-4645

Conference

Conference87th SEG annual meeting
Country/TerritoryUnited States
CityHouston
Period24/09/1729/09/17
Internet address

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