Full wavefield imaging of the near surface by joint migration inversion

S. Masaya, D. J. Verschuur

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

    1 Citation (Scopus)

    Abstract

    Complex near-surface areas pose major problems in the imaging process for land seismic data, especially because the near-surface area can be very heterogeneous. In addition, the responses from shallow reflectors are not properly measured in order to estimate an accurate velocity model. In this paper we present an approach based on Joint Migration Inversion (JMI) for the velocity estimation and imaging. JMI automatically derives a physically consistent near-surface propagation model using the full wavefield, where the near-surface effects are encoded in the higher-order scattering effects. This approach uses all measured reflection events simultaneously and includes transmission effects and all multiples generated in both the near surface and below. Synthetic examples under realistic near-surface conditions are given to show the effectiveness of the approach.

    Original languageEnglish
    Title of host publication78th EAGE Conference and Exhibition 2016: Efficient Use of Technology - Unlocking Potential
    PublisherEAGE
    ISBN (Electronic)978-946282185-9
    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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