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dc.contributor.authorSinha, Mrinal
dc.contributor.authorSchuster, Gerard T.
dc.date.accessioned2018-12-30T08:37:37Z
dc.date.available2018-12-30T08:37:37Z
dc.date.issued2018-12-04
dc.identifier.citationSinha M, Schuster GT (2018) Interferometric full-waveform inversion. GEOPHYSICS 84: R59–R74. Available: http://dx.doi.org/10.1190/geo2018-0047.1.
dc.identifier.issn0016-8033
dc.identifier.issn1942-2156
dc.identifier.doi10.1190/geo2018-0047.1
dc.identifier.urihttp://hdl.handle.net/10754/630370
dc.description.abstractVelocity errors in the shallow part of the velocity model can lead to erroneous estimates of the full-waveform inversion (FWI) tomogram. If the location and topography of a reflector are known, then such a reflector can be used as a reference reflector to update the underlying velocity model. Reflections corresponding to this reference reflector are windowed in the data space. Windowed reference reflections are then crosscorrelated with reflections from deeper interfaces, which leads to partial cancellation of static errors caused by the overburden above the reference interface. Interferometric FWI (IFWI) is then used to invert the tomogram in the target region, by minimizing the normalized waveform misfit between the observed and predicted crosscorrelograms. Results with synthetic and field data with static errors above the reference interface indicate that an accurate tomogram can be inverted in areas lying within several wavelengths of the reference interface. IFWI can also be applied to synthetic time-lapse data to mitigate the nonrepeatability errors caused by time-varying overburden variations. The synthetic- and field-data examples demonstrate that IFWI can provide accurate tomograms when the near surface is ridden with velocity errors.
dc.description.sponsorshipThe research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia. We would also like to thank the KAUST Supercomputing Laboratory (KSL) for providing access to supercomputing facilities. We are grateful to the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) Consortium for their financial support.
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttps://library.seg.org/doi/10.1190/geo2018-0047.1
dc.rightsArchived with thanks to GEOPHYSICS
dc.subjectFull-waveform inversion
dc.subjectInterferometry
dc.subjectStatics
dc.titleInterferometric full-waveform inversion
dc.typeArticle
dc.contributor.departmentCenter for Subsurface Imaging and Fluid Modeling
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalGEOPHYSICS
dc.eprint.versionPublisher's Version/PDF
kaust.personSinha, Mrinal
kaust.personSchuster, Gerard T.
refterms.dateFOA2018-12-30T08:46:22Z
dc.date.published-online2018-12-04
dc.date.published-print2019-01


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