The effect of multiples on anisotropic parameter estimation

A. Alshuhail, D. J. Verschuur

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

    Abstract

    It is imperative to take anisotropy into account in imaging, when it is present. Ignoring it could cause significant mispositioning errors. In order to account for anisotropy one must estimate the anisotropic parameters. However, estimating the parameters proves to be quite challenging, especially the issue of parameter trade-off. We investigate the effects of multiples in our anisotropic inversion process that is based on full wavefield inversion methodology. We analyse the cost function for a number of different scenarios where primaries-only are considered and primaries and multiples are considered. Results show that multiples do contain valuable information on the anisotropic parameters. Multiples generally spend more time in the subsurface compared to primaries, hence are more sensitive to the subsurface parameters. This extra sensitivity constrains the cost function and limit the trade-off. We illustrate the method with synthetic examples from the HESS SEG VTI model.

    Original languageEnglish
    Title of host publication78th EAGE Conference and Exhibition 2016
    Subtitle of host publicationEfficient Use of Technology - Unlocking Potential
    EditorsGary Ingram
    PublisherEAGE
    Number of pages5
    Volume3
    ISBN (Electronic)9789462821859
    DOIs
    Publication statusPublished - 2016
    Event78th EAGE Conference and Exhibition 2016: Efficient Use of Technology - Unlocking Potential - Vienna, Austria
    Duration: 30 May 20162 Jun 2016

    Conference

    Conference78th EAGE Conference and Exhibition 2016: Efficient Use of Technology - Unlocking Potential
    CountryAustria
    CityVienna
    Period30/05/162/06/16

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