Estimation of the anisotropy parameters from imaging moveout of diving wave in a factorized anisotropic medium

Handle URI:
http://hdl.handle.net/10754/614414
Title:
Estimation of the anisotropy parameters from imaging moveout of diving wave in a factorized anisotropic medium
Authors:
Xu, Shibo; Stovas, Alexey; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
The importance of diving waves is being realized because they provide long-wavelength model information, which can be used to help invert for the reflection information in full-waveform inversion. The factorized model is defined here as a combination of vertical heterogeneity and constant anisotropy, and it admits closed-form description of the traveltime. We have used these resulting analytical formulas to describe the behavior of diving waves in a factorized anisotropic medium, and we used an approximate imaging moveout formulation (residual moveout after imaging) to update the velocity model when the wrong model parameters (isotropic assumption) were used for imaging. We then used these analytical representations of the image moveout to establish a semblance analysis framework to search for the optimal anisotropic parameters. We have also discussed different parameterizations of the factorized medium to find the one that gave the best accuracy in anisotropy parameters estimation.
KAUST Department:
Astronomy and Geophysical Research Institute
Citation:
Estimation of the anisotropy parameters from imaging moveout of diving wave in a factorized anisotropic medium 2016, 81 (4):C139 GEOPHYSICS
Publisher:
Society of Exploration Geophysicists
Journal:
GEOPHYSICS
Issue Date:
10-Jun-2016
DOI:
10.1190/geo2015-0600.1
Type:
Article
ISSN:
0016-8033; 1942-2156
Sponsors:
We would like to thank W. Weibull for providing the modeling and RTM codes and C. Wang from Tongji University for his useful discussions. We acknowledge the China Scholarship Council and the ROSE Project for financial support and KAUST for its support. We also would like to acknowledge the associate editor and the reviewers for their instructive comments.
Additional Links:
http://library.seg.org/doi/10.1190/geo2015-0600.1
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorXu, Shiboen
dc.contributor.authorStovas, Alexeyen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2016-06-23T10:49:32Z-
dc.date.available2016-06-23T10:49:32Z-
dc.date.issued2016-06-10-
dc.identifier.citationEstimation of the anisotropy parameters from imaging moveout of diving wave in a factorized anisotropic medium 2016, 81 (4):C139 GEOPHYSICSen
dc.identifier.issn0016-8033-
dc.identifier.issn1942-2156-
dc.identifier.doi10.1190/geo2015-0600.1-
dc.identifier.urihttp://hdl.handle.net/10754/614414-
dc.description.abstractThe importance of diving waves is being realized because they provide long-wavelength model information, which can be used to help invert for the reflection information in full-waveform inversion. The factorized model is defined here as a combination of vertical heterogeneity and constant anisotropy, and it admits closed-form description of the traveltime. We have used these resulting analytical formulas to describe the behavior of diving waves in a factorized anisotropic medium, and we used an approximate imaging moveout formulation (residual moveout after imaging) to update the velocity model when the wrong model parameters (isotropic assumption) were used for imaging. We then used these analytical representations of the image moveout to establish a semblance analysis framework to search for the optimal anisotropic parameters. We have also discussed different parameterizations of the factorized medium to find the one that gave the best accuracy in anisotropy parameters estimation.en
dc.description.sponsorshipWe would like to thank W. Weibull for providing the modeling and RTM codes and C. Wang from Tongji University for his useful discussions. We acknowledge the China Scholarship Council and the ROSE Project for financial support and KAUST for its support. We also would like to acknowledge the associate editor and the reviewers for their instructive comments.en
dc.language.isoenen
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/10.1190/geo2015-0600.1en
dc.rightsArchived with thanks to GEOPHYSICSen
dc.subjectdiving waveen
dc.subjectfactorized modelen
dc.subjectseismic anisotropyen
dc.titleEstimation of the anisotropy parameters from imaging moveout of diving wave in a factorized anisotropic mediumen
dc.typeArticleen
dc.contributor.departmentAstronomy and Geophysical Research Instituteen
dc.identifier.journalGEOPHYSICSen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionNorwegian University of Science and Technology, Department of Petroleum Engineering and Applied Geophysics, Trondheim, Norwayen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAlkhalifah, Tariq Alien
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