A new traveltime approximation for TI media

Handle URI:
http://hdl.handle.net/10754/555645
Title:
A new traveltime approximation for TI media
Authors:
Stovas, Alexey; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
In a transversely isotropic (TI) medium, the trade-off between inhomogeneity and anisotropy can dramatically reduce our capability to estimate anisotropy parameters. By expanding the TI eikonal equation in power series in terms of the aneliptic parameter η, we derive an efficient tool to estimate (scan) for η in a generally inhomogeneous, elliptically anisotropic background medium. For a homogeneous-tilted transversely isotropic medium, we obtain an analytic nonhyperbolic moveout equation that is accurate for large offsets. In the common case where we do not have well information and it is necessary to resolve the vertical velocity, the background medium can be assumed isotropic, and the traveltime equations becomes simpler. In all cases, the accuracy of this new TI traveltime equation exceeds previously published formulations and demonstrates how η is better resolved at small offsets when the tilt is large.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
A new traveltime approximation for TI media 2012, 77 (4):C37 GEOPHYSICS
Publisher:
Society of Exploration Geophysicists
Journal:
GEOPHYSICS
Issue Date:
Jul-2012
DOI:
10.1190/geo2011-0158.1
Type:
Article
ISSN:
0016-8033; 1942-2156
Additional Links:
http://library.seg.org/doi/abs/10.1190/geo2011-0158.1
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorStovas, Alexeyen
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2015-05-25T08:19:09Zen
dc.date.available2015-05-25T08:19:09Zen
dc.date.issued2012-07en
dc.identifier.citationA new traveltime approximation for TI media 2012, 77 (4):C37 GEOPHYSICSen
dc.identifier.issn0016-8033en
dc.identifier.issn1942-2156en
dc.identifier.doi10.1190/geo2011-0158.1en
dc.identifier.urihttp://hdl.handle.net/10754/555645en
dc.description.abstractIn a transversely isotropic (TI) medium, the trade-off between inhomogeneity and anisotropy can dramatically reduce our capability to estimate anisotropy parameters. By expanding the TI eikonal equation in power series in terms of the aneliptic parameter η, we derive an efficient tool to estimate (scan) for η in a generally inhomogeneous, elliptically anisotropic background medium. For a homogeneous-tilted transversely isotropic medium, we obtain an analytic nonhyperbolic moveout equation that is accurate for large offsets. In the common case where we do not have well information and it is necessary to resolve the vertical velocity, the background medium can be assumed isotropic, and the traveltime equations becomes simpler. In all cases, the accuracy of this new TI traveltime equation exceeds previously published formulations and demonstrates how η is better resolved at small offsets when the tilt is large.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/geo2011-0158.1en
dc.rightsArchived with thanks to GEOPHYSICSen
dc.subjectimagingen
dc.subjectmodelingen
dc.subjectanisotropyen
dc.titleA new traveltime approximation for TI mediaen
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 (NTNU), Department of Petroleum Engineering and Applied Geophysics, Trondheim, Norwayen
kaust.authorAlkhalifah, Tariq Alien
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