Facies Constrained Elastic Full Waveform Inversion

Handle URI:
http://hdl.handle.net/10754/624904
Title:
Facies Constrained Elastic Full Waveform Inversion
Authors:
Zhang, Z.; Zabihi Naeini, E.; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Current efforts to utilize full waveform inversion (FWI) as a tool beyond acoustic imaging applications, for example for reservoir analysis, face inherent limitations on resolution and also on the potential trade-off between elastic model parameters. Adding rock physics constraints does help to mitigate these issues. However, current approaches to add such constraints are based on averaged type rock physics regularization terms. Since the true earth model consists of different facies, averaging over those facies naturally leads to smoothed models. To overcome this, we propose a novel way to utilize facies based constraints in elastic FWI. A so-called confidence map is calculated and updated at each iteration of the inversion using both the inverted models and the prior information. The numerical example shows that the proposed method can reduce the cross-talks and also can improve the resolution of inverted elastic properties.
KAUST Department:
KAUST
Citation:
Zhang Z, Zabihi Naeini E, Alkhalifah T (2017) Facies Constrained Elastic Full Waveform Inversion. 79th EAGE Conference and Exhibition 2017. Available: http://dx.doi.org/10.3997/2214-4609.201700719.
Publisher:
EAGE Publications BV
Journal:
79th EAGE Conference and Exhibition 2017
Issue Date:
26-May-2017
DOI:
10.3997/2214-4609.201700719
Type:
Conference Paper
Sponsors:
We thank Juwon Oh, Bingbing Sun, Vladimir Kazei and Yike Liu (IGG, CAS) for their helpful discussions. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.
Additional Links:
http://www.earthdoc.org/publication/publicationdetails/?publication=88436
Appears in Collections:
Conference Papers

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Z.en
dc.contributor.authorZabihi Naeini, E.en
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2017-06-12T08:33:42Z-
dc.date.available2017-06-12T08:33:42Z-
dc.date.issued2017-05-26en
dc.identifier.citationZhang Z, Zabihi Naeini E, Alkhalifah T (2017) Facies Constrained Elastic Full Waveform Inversion. 79th EAGE Conference and Exhibition 2017. Available: http://dx.doi.org/10.3997/2214-4609.201700719.en
dc.identifier.doi10.3997/2214-4609.201700719en
dc.identifier.urihttp://hdl.handle.net/10754/624904-
dc.description.abstractCurrent efforts to utilize full waveform inversion (FWI) as a tool beyond acoustic imaging applications, for example for reservoir analysis, face inherent limitations on resolution and also on the potential trade-off between elastic model parameters. Adding rock physics constraints does help to mitigate these issues. However, current approaches to add such constraints are based on averaged type rock physics regularization terms. Since the true earth model consists of different facies, averaging over those facies naturally leads to smoothed models. To overcome this, we propose a novel way to utilize facies based constraints in elastic FWI. A so-called confidence map is calculated and updated at each iteration of the inversion using both the inverted models and the prior information. The numerical example shows that the proposed method can reduce the cross-talks and also can improve the resolution of inverted elastic properties.en
dc.description.sponsorshipWe thank Juwon Oh, Bingbing Sun, Vladimir Kazei and Yike Liu (IGG, CAS) for their helpful discussions. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.en
dc.publisherEAGE Publications BVen
dc.relation.urlhttp://www.earthdoc.org/publication/publicationdetails/?publication=88436en
dc.rightsGold Open Accessen
dc.rightsArchived with thanks to 79th EAGE Conference and Exhibition 2017en
dc.titleFacies Constrained Elastic Full Waveform Inversionen
dc.typeConference Paperen
dc.contributor.departmentKAUSTen
dc.identifier.journal79th EAGE Conference and Exhibition 2017en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionIkon Scienceen
kaust.authorZhang, Z.en
kaust.authorAlkhalifah, Tariq Alien
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