Wave equation tomography using the unwrapped phase - Analysis of the traveltime sensitivity kernels

Handle URI:
http://hdl.handle.net/10754/564645
Title:
Wave equation tomography using the unwrapped phase - Analysis of the traveltime sensitivity kernels
Authors:
Djebbi, Ramzi ( 0000-0003-0415-0092 ) ; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Full waveform inversion suffers from the high non-linearity in the misfit function, which causes the convergence to a local minimum. In the other hand, traveltime tomography has a quasi-linear misfit function but yields low- resolution models. Wave equation tomography (WET) tries to improve on traveltime tomography, by better adhering to the requirements of our finite-frequency data. However, conventional (WET), based on the crosscorelaion lag, yields the popular hallow banana sensitivity kernel indicating that the measured wavefield at a point is insensitive to perturbations along the ray theoretical path at certain finite frequencies. Using the instantaneous traveltime, the sensitivity kernel reflects more the model-data dependency we grown accustom to in seismic inversion (even phase inversion). Demonstrations on synthetic and the Mamousi model support such assertions.
KAUST Department:
Earth Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Environmental Science and Engineering Program
Publisher:
EAGE Publications
Journal:
London 2013, 75th eage conference en exhibition incorporating SPE Europec
Conference/Event name:
75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers
Issue Date:
2013
DOI:
10.3997/2214-4609.20130414
Type:
Conference Paper
ISBN:
9781629937915
Appears in Collections:
Conference Papers; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorDjebbi, Ramzien
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2015-08-04T07:10:44Zen
dc.date.available2015-08-04T07:10:44Zen
dc.date.issued2013en
dc.identifier.isbn9781629937915en
dc.identifier.doi10.3997/2214-4609.20130414en
dc.identifier.urihttp://hdl.handle.net/10754/564645en
dc.description.abstractFull waveform inversion suffers from the high non-linearity in the misfit function, which causes the convergence to a local minimum. In the other hand, traveltime tomography has a quasi-linear misfit function but yields low- resolution models. Wave equation tomography (WET) tries to improve on traveltime tomography, by better adhering to the requirements of our finite-frequency data. However, conventional (WET), based on the crosscorelaion lag, yields the popular hallow banana sensitivity kernel indicating that the measured wavefield at a point is insensitive to perturbations along the ray theoretical path at certain finite frequencies. Using the instantaneous traveltime, the sensitivity kernel reflects more the model-data dependency we grown accustom to in seismic inversion (even phase inversion). Demonstrations on synthetic and the Mamousi model support such assertions.en
dc.publisherEAGE Publicationsen
dc.titleWave equation tomography using the unwrapped phase - Analysis of the traveltime sensitivity kernelsen
dc.typeConference Paperen
dc.contributor.departmentEarth Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalLondon 2013, 75th eage conference en exhibition incorporating SPE Europecen
dc.conference.date10 June 2013 through 13 June 2013en
dc.conference.name75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiersen
kaust.authorAlkhalifah, Tariq Alien
kaust.authorDjebbi, Ramzien
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