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dc.contributor.authorFu, Lei
dc.contributor.authorGuo, Bowen
dc.contributor.authorSun, Yonghe
dc.contributor.authorSchuster, Gerard T.
dc.date.accessioned2018-02-01T11:45:54Z
dc.date.available2018-02-01T11:45:54Z
dc.date.issued2018-02-13
dc.identifier.citationFu L, Guo B, Sun Y, Schuster GT (2017) Multiscale Phase Inversion of Seismic Data. GEOPHYSICS: 1–52. Available: http://dx.doi.org/10.1190/geo2017-0353.1.
dc.identifier.issn0016-8033
dc.identifier.issn1942-2156
dc.identifier.doi10.1190/geo2017-0353.1
dc.identifier.urihttp://hdl.handle.net/10754/627013
dc.description.abstractWe present a scheme for multiscale phase inversion (MPI) of seismic data that is less sensitive to the unmodeled physics of wave propagation and a poor starting model than standard full waveform inversion (FWI). To avoid cycle-skipping, the multiscale strategy temporally integrates the traces several times, i.e. high-order integration, to produce low-boost seismograms that are used as input data for the initial iterations of MPI. As the iterations proceed, higher frequencies in the data are boosted by using integrated traces of lower order as the input data. The input data are also filtered into different narrow frequency bands for the MPI implementation. At low frequencies, we show that MPI with windowed reflections approximates wave equation inversion of the reflection traveltimes, except no traveltime picking is needed. Numerical results with synthetic acoustic data show that MPI is more robust than conventional multiscale FWI when the initial model is far from the true model. Results from synthetic viscoacoustic and elastic data show that MPI is less sensitive than FWI to some of the unmodeled physics. Inversion of marine data shows that MPI is more robust and produces modestly more accurate results than FWI for this data set.
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 are grateful to the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) Consortium for their financial support. For computer time, this research used the resources of the Supercomputing Laboratory at KAUST and the IT Research Computing Group. We thank them for providing the computational resources required for carrying out this work. We greatly appreciate the constructive comments and suggestions from two anonymous reviewers, which helped improve this paper.
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttps://library.seg.org/doi/10.1190/geo2017-0353.1
dc.rightsArchived with thanks to GEOPHYSICS
dc.subjectfull-waveform inversion
dc.subjectintegration
dc.subjectphase
dc.titleMultiscale Phase Inversion of Seismic Data
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.versionPost-print
dc.contributor.institutionChevron Corporation.
kaust.personFu, Lei
kaust.personGuo, Bowen
kaust.personSchuster, Gerard T.
refterms.dateFOA2018-06-13T14:39:07Z
dc.date.published-online2018-02-13
dc.date.published-print2018-03


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