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 publicationSEG Technical Program Expanded Abstracts 2013
PublisherSociety of Exploration Geophysicists
Pages4579-4583
Number of pages5
ISBN (Print)9781629931883
DOIs
Publication statusPublished - 19 Aug 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
PublisherSociety of Exploration Geophysicists
ISSN (Print)1052-3812
ISSN (Electronic)1949-4645

Conference

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

Keywords

  • acoustic
  • scattering
  • seismic
  • numerical

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