Multi-parameters scanning in HTI media

Handle URI:
http://hdl.handle.net/10754/593369
Title:
Multi-parameters scanning in HTI media
Authors:
Masmoudi, Nabil; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Building credible anisotropy models is crucial in imaging. One way to estimate anisotropy parameters is to relate them analytically to traveltime, which is challenging in inhomogeneous media. Using perturbation theory, we develop traveltime approximations for transversely isotropic media with horizontal symmetry axis (HTI) as explicit functions of the anellipticity parameter η and the symmetry axis azimuth ϕ in inhomogeneous background media. Specifically, our expansion assumes an inhomogeneous elliptically anisotropic background medium, which may be obtained from well information and stacking velocity analysis in HTI media. This formulation has advantages on two fronts: on one hand, it alleviates the computational complexity associated with solving the HTI eikonal equation, and on the other hand, it provides a mechanism to scan for the best fitting parameters η and ϕ without the need for repetitive modeling of traveltimes, because the traveltime coefficients of the expansion are independent of the perturbed parameters η and ϕ. The accuracy of our expansion is further enhanced by the use of shanks transform. We show the effectiveness of our scheme with tests on a 3D model and we propose an approach for multi-parameters scanning in TI media.
KAUST Department:
Earth Science and Engineering Program
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2014
Conference/Event name:
SEG Technical Program Expanded Abstracts 2014
Issue Date:
5-Aug-2014
DOI:
10.1190/segam2014-0437.1
Type:
Conference Paper
Additional Links:
http://library.seg.org/doi/abs/10.1190/segam2014-0437.1
Appears in Collections:
Conference Papers; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorMasmoudi, Nabilen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2016-01-13T09:50:49Zen
dc.date.available2016-01-13T09:50:49Zen
dc.date.issued2014-08-05en
dc.identifier.doi10.1190/segam2014-0437.1en
dc.identifier.urihttp://hdl.handle.net/10754/593369en
dc.description.abstractBuilding credible anisotropy models is crucial in imaging. One way to estimate anisotropy parameters is to relate them analytically to traveltime, which is challenging in inhomogeneous media. Using perturbation theory, we develop traveltime approximations for transversely isotropic media with horizontal symmetry axis (HTI) as explicit functions of the anellipticity parameter η and the symmetry axis azimuth ϕ in inhomogeneous background media. Specifically, our expansion assumes an inhomogeneous elliptically anisotropic background medium, which may be obtained from well information and stacking velocity analysis in HTI media. This formulation has advantages on two fronts: on one hand, it alleviates the computational complexity associated with solving the HTI eikonal equation, and on the other hand, it provides a mechanism to scan for the best fitting parameters η and ϕ without the need for repetitive modeling of traveltimes, because the traveltime coefficients of the expansion are independent of the perturbed parameters η and ϕ. The accuracy of our expansion is further enhanced by the use of shanks transform. We show the effectiveness of our scheme with tests on a 3D model and we propose an approach for multi-parameters scanning in TI media.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/segam2014-0437.1en
dc.subject3Den
dc.subjectanisotropyen
dc.subjectestimationen
dc.subjecttraveltimeen
dc.subjectazimuthen
dc.titleMulti-parameters scanning in HTI mediaen
dc.typeConference Paperen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2014en
dc.conference.nameSEG Technical Program Expanded Abstracts 2014en
dc.eprint.versionPublisher's Version/PDFen
kaust.authorMasmoudi, Nabilen
kaust.authorAlkhalifah, Tariq Alien
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