The offset-midpoint traveltime pyramid in 3D transversely isotropic media with a horizontal symmetry axis

Handle URI:
http://hdl.handle.net/10754/550322
Title:
The offset-midpoint traveltime pyramid in 3D transversely isotropic media with a horizontal symmetry axis
Authors:
Hao, Qi; Stovas, Alexey; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Analytic representation of the offset-midpoint traveltime equation for anisotropy is very important for prestack Kirchhoff migration and velocity inversion in anisotropic media. For transversely isotropic media with a vertical symmetry axis, the offset-midpoint traveltime resembles the shape of a Cheops’ pyramid. This is also valid for homogeneous 3D transversely isotropic media with a horizontal symmetry axis (HTI). We extended the offset-midpoint traveltime pyramid to the case of homogeneous 3D HTI. Under the assumption of weak anellipticity of HTI media, we derived an analytic representation of the P-wave traveltime equation and used Shanks transformation to improve the accuracy of horizontal and vertical slownesses. The traveltime pyramid was derived in the depth and time domains. Numerical examples confirmed the accuracy of the proposed approximation for the traveltime function in 3D HTI media.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
The offset-midpoint traveltime pyramid in 3D transversely isotropic media with a horizontal symmetry axis 2014, 80 (1):T51 GEOPHYSICS
Publisher:
Society of Exploration Geophysicists
Journal:
GEOPHYSICS
Issue Date:
30-Dec-2014
DOI:
10.1190/geo2013-0322.1
Type:
Article
ISSN:
0016-8033; 1942-2156
Additional Links:
http://library.seg.org/doi/abs/10.1190/geo2013-0322.1
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHao, Qien
dc.contributor.authorStovas, Alexeyen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2015-04-20T07:13:34Zen
dc.date.available2015-04-20T07:13:34Zen
dc.date.issued2014-12-30en
dc.identifier.citationThe offset-midpoint traveltime pyramid in 3D transversely isotropic media with a horizontal symmetry axis 2014, 80 (1):T51 GEOPHYSICSen
dc.identifier.issn0016-8033en
dc.identifier.issn1942-2156en
dc.identifier.doi10.1190/geo2013-0322.1en
dc.identifier.urihttp://hdl.handle.net/10754/550322en
dc.description.abstractAnalytic representation of the offset-midpoint traveltime equation for anisotropy is very important for prestack Kirchhoff migration and velocity inversion in anisotropic media. For transversely isotropic media with a vertical symmetry axis, the offset-midpoint traveltime resembles the shape of a Cheops’ pyramid. This is also valid for homogeneous 3D transversely isotropic media with a horizontal symmetry axis (HTI). We extended the offset-midpoint traveltime pyramid to the case of homogeneous 3D HTI. Under the assumption of weak anellipticity of HTI media, we derived an analytic representation of the P-wave traveltime equation and used Shanks transformation to improve the accuracy of horizontal and vertical slownesses. The traveltime pyramid was derived in the depth and time domains. Numerical examples confirmed the accuracy of the proposed approximation for the traveltime function in 3D HTI media.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/geo2013-0322.1en
dc.rightsArchived with thanks to GEOPHYSICS. Reuse is subject to Society of Exploration Geophysicists terms of use and conditions.en
dc.subjectanisotropyen
dc.subjectmigrationen
dc.subjectprestacken
dc.subjectmodelingen
dc.subjecttraveltimeen
dc.titleThe offset-midpoint traveltime pyramid in 3D transversely isotropic media with a horizontal symmetry axisen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
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
kaust.authorAlkhalifah, Tariq Alien
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