Shot- and angle-domain wave-equation traveltime inversion of reflection data: Synthetic and field data examples

Handle URI:
http://hdl.handle.net/10754/556184
Title:
Shot- and angle-domain wave-equation traveltime inversion of reflection data: Synthetic and field data examples
Authors:
Zhang, Sanzong; Luo, Yi; Schuster, Gerard T. ( 0000-0001-7532-1587 )
Abstract:
Full-waveform inversion requires the accurate simulation of the dynamics and kinematics of wave propagation. This is difficult in practice because the amplitudes cannot be precisely reproduced for seismic waves in the earth. Wave-equation reflection traveltime tomography (WT) is proposed to avoid this problem by directly inverting the reflection-traveltime residuals without the use of the high-frequency approximation. We inverted synthetic traces and recorded seismic data for the velocity model by WT. Our results demonstrated that the wave-equation solution overcame the high-frequency approximation of ray-based tomography, was largely insensitive to the accurate modeling of amplitudes, and mitigated problems with ambiguous event identification. The synthetic examples illustrated the effectiveness of the WT method in providing a highly resolved estimate of the velocity model. A real data example from the Gulf of Mexico demonstrated these benefits of WT, but also found the limitations in traveltime residual estimation for complex models.
KAUST Department:
Center for Subsurface Imaging and Fluid Modeling
Citation:
Shot- and angle-domain wave-equation traveltime inversion of reflection data: Synthetic and field data examples 2015, 80 (4):S79 GEOPHYSICS
Publisher:
Society of Exploration Geophysicists
Journal:
GEOPHYSICS
Issue Date:
26-May-2015
DOI:
10.1190/geo2014-0223.1
Type:
Article
ISSN:
0016-8033; 1942-2156
Additional Links:
http://library.seg.org/doi/abs/10.1190/geo2014-0223.1
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Sanzongen
dc.contributor.authorLuo, Yien
dc.contributor.authorSchuster, Gerard T.en
dc.date.accessioned2015-06-03T08:30:02Zen
dc.date.available2015-06-03T08:30:02Zen
dc.date.issued2015-05-26en
dc.identifier.citationShot- and angle-domain wave-equation traveltime inversion of reflection data: Synthetic and field data examples 2015, 80 (4):S79 GEOPHYSICSen
dc.identifier.issn0016-8033en
dc.identifier.issn1942-2156en
dc.identifier.doi10.1190/geo2014-0223.1en
dc.identifier.urihttp://hdl.handle.net/10754/556184en
dc.description.abstractFull-waveform inversion requires the accurate simulation of the dynamics and kinematics of wave propagation. This is difficult in practice because the amplitudes cannot be precisely reproduced for seismic waves in the earth. Wave-equation reflection traveltime tomography (WT) is proposed to avoid this problem by directly inverting the reflection-traveltime residuals without the use of the high-frequency approximation. We inverted synthetic traces and recorded seismic data for the velocity model by WT. Our results demonstrated that the wave-equation solution overcame the high-frequency approximation of ray-based tomography, was largely insensitive to the accurate modeling of amplitudes, and mitigated problems with ambiguous event identification. The synthetic examples illustrated the effectiveness of the WT method in providing a highly resolved estimate of the velocity model. A real data example from the Gulf of Mexico demonstrated these benefits of WT, but also found the limitations in traveltime residual estimation for complex models.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/geo2014-0223.1en
dc.rightsArchived with thanks to GEOPHYSICSen
dc.subjecttomographyen
dc.subjecttraveltimeen
dc.subjectwave equationen
dc.subjectcrosscorrelationen
dc.subjectMexicoen
dc.titleShot- and angle-domain wave-equation traveltime inversion of reflection data: Synthetic and field data examplesen
dc.typeArticleen
dc.contributor.departmentCenter for Subsurface Imaging and Fluid Modelingen
dc.identifier.journalGEOPHYSICSen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionEXPEC ARC, Saudi Aramco, Dhahran, Saudi Arabiaen
kaust.authorSchuster, Gerard T.en
kaust.authorZhang, Sanzongen
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