A recipe for practical full waveform inversion in anisotropic media

Handle URI:
http://hdl.handle.net/10754/575791
Title:
A recipe for practical full waveform inversion in anisotropic media
Authors:
Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 ) ; Plessix, René Édouard
Abstract:
In representing the most common (first-order influence, and gravity induced) acoustic anisotropy, transversely isotropic with a vertical symmetry direction (VTI) medium, with the P-wave normal moveout velocity, delta, and eta, we obtain a perturbation radiation pattern that has limited tradeoff between the parameters. Since delta is weakly resolvable from the kinematics of wave propagation, we can use it to play the role that density plays in improving the data fit for an imperfect physical model that ignores the elastic nature of the Earth. An FWI scheme that starts from diving waves would benefit from representing the acoustic VTI model with the P-wave horizontal velocity, eta, and epsilon. In this representation, the diving waves will help us first resolve the horizontal velocity, and then reflections, if the nonlinearity is properly handled, could help us resolve eta, while epsilon comes at the end to improve the amplitude fit (instead of the density). The model update wavelength for acoustic anisotropic FWI is very much similar to that experienced for the isotropic case. Copyright © 2014 by the European Association of Geoscientists & Engineers. All rights reserved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Environmental Science and Engineering Program; Earth Science and Engineering Program
Publisher:
Society of Exploration Geophysicists
Journal:
GEOPHYSICS
Conference/Event name:
6th Saint Petersburg International Conference and Exhibition on Geosciences 2014: Investing in the Future
Issue Date:
28-Mar-2014
DOI:
10.1190/geo2013-0366.1
Type:
Conference Paper
ISBN:
9781632665393
Appears in Collections:
Conference Papers; Environmental Science and Engineering Program; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAlkhalifah, Tariq Alien
dc.contributor.authorPlessix, René Édouarden
dc.date.accessioned2015-08-24T09:26:18Zen
dc.date.available2015-08-24T09:26:18Zen
dc.date.issued2014-03-28en
dc.identifier.isbn9781632665393en
dc.identifier.doi10.1190/geo2013-0366.1en
dc.identifier.urihttp://hdl.handle.net/10754/575791en
dc.description.abstractIn representing the most common (first-order influence, and gravity induced) acoustic anisotropy, transversely isotropic with a vertical symmetry direction (VTI) medium, with the P-wave normal moveout velocity, delta, and eta, we obtain a perturbation radiation pattern that has limited tradeoff between the parameters. Since delta is weakly resolvable from the kinematics of wave propagation, we can use it to play the role that density plays in improving the data fit for an imperfect physical model that ignores the elastic nature of the Earth. An FWI scheme that starts from diving waves would benefit from representing the acoustic VTI model with the P-wave horizontal velocity, eta, and epsilon. In this representation, the diving waves will help us first resolve the horizontal velocity, and then reflections, if the nonlinearity is properly handled, could help us resolve eta, while epsilon comes at the end to improve the amplitude fit (instead of the density). The model update wavelength for acoustic anisotropic FWI is very much similar to that experienced for the isotropic case. Copyright © 2014 by the European Association of Geoscientists & Engineers. All rights reserved.en
dc.publisherSociety of Exploration Geophysicistsen
dc.titleA recipe for practical full waveform inversion in anisotropic mediaen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalGEOPHYSICSen
dc.conference.date7 April 2014 through 10 April 2014en
dc.conference.name6th Saint Petersburg International Conference and Exhibition on Geosciences 2014: Investing in the Futureen
dc.conference.locationSaint Petersburgen
dc.contributor.institutionShell, Netherlandsen
kaust.authorAlkhalifah, Tariq Alien
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.