Migration using a transversely isotropic medium with symmetry normal to the reflector dip

Handle URI:
http://hdl.handle.net/10754/334643
Title:
Migration using a transversely isotropic medium with symmetry normal to the reflector dip
Authors:
Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 ) ; Sava, P.
Abstract:
A transversely isotropic (TI) model in which the tilt is constrained to be normal to the dip (DTI model) allows for simplifications in the imaging and velocity model building efforts as compared to a general TI (TTI) model. Although this model cannot be represented physically in all situations, for example, in the case of conflicting dips, it handles arbitrary reflector orientations under the assumption of symmetry axis normal to the dip. Using this assumption, we obtain efficient downward continuation algorithms compared to the general TTI ones, by utilizing the reflection features of such a model. Phase-shift migration can be easily extended to approximately handle lateral inhomogeneity using, for example, the split-step approach. This is possible because, unlike the general TTI case, the DTI model reduces to VTI for zero dip. These features enable a process in which we can extract velocity information by including tools that expose inaccuracies in the velocity model in the downward continuation process. We test this model on synthetic data corresponding to a general TTI medium and show its resilience. 2011 Tariq Alkhalifah and Paul Sava.
KAUST Department:
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Citation:
Alkhalifah T, Sava P (2011) Migration Using a Transversely Isotropic Medium with Symmetry Normal to the Reflector Dip. International Journal of Geophysics 2011: 1-5. doi:10.1155/2011/530106.
Publisher:
Hindawi Publishing Corporation
Journal:
International Journal of Geophysics
Issue Date:
2011
DOI:
10.1155/2011/530106
Type:
Article
ISSN:
1687885X
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorAlkhalifah, Tariq Alien
dc.contributor.authorSava, P.en
dc.date.accessioned2014-11-11T14:33:22Z-
dc.date.available2014-11-11T14:33:22Z-
dc.date.issued2011en
dc.identifier.citationAlkhalifah T, Sava P (2011) Migration Using a Transversely Isotropic Medium with Symmetry Normal to the Reflector Dip. International Journal of Geophysics 2011: 1-5. doi:10.1155/2011/530106.en
dc.identifier.issn1687885Xen
dc.identifier.doi10.1155/2011/530106en
dc.identifier.urihttp://hdl.handle.net/10754/334643en
dc.description.abstractA transversely isotropic (TI) model in which the tilt is constrained to be normal to the dip (DTI model) allows for simplifications in the imaging and velocity model building efforts as compared to a general TI (TTI) model. Although this model cannot be represented physically in all situations, for example, in the case of conflicting dips, it handles arbitrary reflector orientations under the assumption of symmetry axis normal to the dip. Using this assumption, we obtain efficient downward continuation algorithms compared to the general TTI ones, by utilizing the reflection features of such a model. Phase-shift migration can be easily extended to approximately handle lateral inhomogeneity using, for example, the split-step approach. This is possible because, unlike the general TTI case, the DTI model reduces to VTI for zero dip. These features enable a process in which we can extract velocity information by including tools that expose inaccuracies in the velocity model in the downward continuation process. We test this model on synthetic data corresponding to a general TTI medium and show its resilience. 2011 Tariq Alkhalifah and Paul Sava.en
dc.language.isoenen
dc.publisherHindawi Publishing Corporationen
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.rightsArchived with thanks to International Journal of Geophysicsen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.titleMigration using a transversely isotropic medium with symmetry normal to the reflector dipen
dc.typeArticleen
dc.contributor.departmentKing Abdullah University of Science and Technology, Thuwal, Saudi Arabiaen
dc.identifier.journalInternational Journal of Geophysicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionCenter for Wave Phenomena, Colorado School of Mines, Golden, CO 80401, United Statesen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAlkhalifah, Tariq Alien
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