Incomplete boundaries and partial equations in source-receiver interferometry (SRI)

Katrin Löer*, Giovanni A. Meles, Andrew Curtis

*Corresponding author for this work

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

Abstract

Source-receiver interferometry (SRI) refers to a technique to construct the Green's function between a source and a receiver using only energy that has travelled from and to surrounding boundaries of sources and receivers. When the full boundary requirements for seismic interferometry are violated, spurious or non-physical energy is introduced into Green's function estimates. Using an acoustic model of a homogeneous medium embedding a single scatterer, we analyse the properties of the interferometric estimate for the case of a partial boundary located on one side of our model, as is commonly the case in practical experiments. We find, that it can be favourable, rather than a shortcoming, to use incomplete boundaries in order to preserve the information from non-physical arrivals that help to constrain the location of a scattering perturbation. Moreover, we show that one term of the SRI equation for scattering media is associated with standard imaging (migration) methods, and that for this term using a partial boundary is an advantage since this suppresses non-physical energy that might otherwise distort the image.

Original languageEnglish
Title of host publicationSociety of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013
Subtitle of host publicationExpanding Geophysical Frontiers
PublisherSociety of Exploration Geophysicists
Pages4579-4583
Number of pages5
ISBN (Print)9781629931883
DOIs
Publication statusPublished - 1 Jan 2013
EventSociety of Exploration Geophysicists International Exposition and 83rd Annual Meeting: Expanding Geophysical Frontiers, SEG 2013 - Houston, United States
Duration: 22 Sep 201327 Sep 2013

Publication series

NameSociety of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013: Expanding Geophysical Frontiers

Conference

ConferenceSociety of Exploration Geophysicists International Exposition and 83rd Annual Meeting: Expanding Geophysical Frontiers, SEG 2013
CountryUnited States
CityHouston
Period22/09/1327/09/13

ASJC Scopus subject areas

  • Geophysics

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    Löer, K., Meles, G. A., & Curtis, A. (2013). Incomplete boundaries and partial equations in source-receiver interferometry (SRI). In Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013: Expanding Geophysical Frontiers (pp. 4579-4583). (Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013: Expanding Geophysical Frontiers). Society of Exploration Geophysicists. https://doi.org/10.1190/segam2013-1054.1