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dc.contributor.authorWaheed, Umair bin
dc.contributor.authorAlkhalifah, Tariq Ali
dc.date.accessioned2015-08-27T11:31:00Z
dc.date.available2015-08-27T11:31:00Z
dc.date.issued2015-08-19
dc.identifier.citationUmair bin Waheed* and Tariq Alkhalifah (2015) Vertical elliptic operator for efficient wave propagation in TTI media. SEG Technical Program Expanded Abstracts 2015: pp. 3560-3564. doi: 10.1190/segam2015-5832843.1
dc.identifier.doi10.1190/segam2015-5832843.1
dc.identifier.urihttp://hdl.handle.net/10754/575990
dc.description.abstractElliptic wave extrapolation operators require significantly less computational cost than the ones for transversely isotropic (TI) media. However, it does not provide accurate wavefield representation or imaging for the prevalent TI media. We propose a new vertical elliptically anisotropic (VEA) wave equation by decomposing the acoustic TI pseudo-differential wave equation. The decomposition results in a vertical elliptic differential equation and a scalar operator. The new VEA-like wave equation shares the same dispersion relation as that of the original acoustic TI wave equation. Therefore, the kinematic contents are correctly matched to the original equation. Moreover, the proposed decomposition yields better amplitude properties than the isotropic decomposition without increasing the computational load. Therefore, it exhibits better cost versus accuracy tradeoff compared to the isotropic or the tilted elliptic decompositions. We demonstrate with numerical examples that the proposed methodology is numerically stable for complex models and is free from shear-wave artifacts.
dc.language.isoen
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttp://library.seg.org/doi/10.1190/segam2015-5832843.1
dc.rightsArchived with thanks to SEG Technical Program Expanded Abstracts 2015
dc.subjectanisotropy
dc.subjectwave propagation
dc.subjectwave equation
dc.subjectmodeling
dc.titleVertical elliptic operator for efficient wave propagation in TTI media
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalSEG Technical Program Expanded Abstracts 2015
dc.eprint.versionPublisher's Version/PDF
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personWaheed, Umair bin
kaust.personAlkhalifah, Tariq Ali
refterms.dateFOA2018-06-13T10:50:21Z


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