Tomography of Diffraction-Based Focusing Operators

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dc.contributor.authorSantos, Luiz Albertoen_US
dc.contributor.authorMansur, Webe Joaoen_US
dc.contributor.authorMcMechan, George A.en_US
dc.contributor.utdAuthorMcMechan, George A.en_US
dc.date.accessioned2014-02-27T23:43:38Z
dc.date.available2014-02-27T23:43:38Z
dc.date.created2012-08-24en_US
dc.date.issued2012-08-24en_US
dc.description.abstractDiffractions carry the same kinematic information provided by common focus point operators (CFPOs). Thus CFPO and diffraction time trajectories may be used separately, or combined into a single unified tomography for velocity analysis. Velocity estimation by tomography of CFPOs reduces the depth-velocity ambiguity compared to two-way time tomography. CFPO estimation is complicated where there are event discontinuities and diffractions. This problem is overcome by using the kinematic information in diffractions in near-offset common-offset gathers. The procedure is illustrated using synthetic data, and a single-channel field seismic profile from the Blake Ridge (off the east coast of the United States). The results show the effectiveness of the proposed method for estimation of velocity from single channel seismic data, and for refinement of the velocity field from multichannel data. Both applications are cost-competitive.en_US
dc.identifier.bibliographicCitationSantos, Luiz Alberto, Webe Joao Mansur, and George A. McMechan. 2012. "Tomography of diffraction-based focusing operators." Geophysics 77(5): R217-R225.en_US
dc.identifier.issn0016-8033en_US
dc.identifier.issue5en_US
dc.identifier.startpageR217en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3120
dc.identifier.volume77en_US
dc.relation.urihttp://dx.doi.org/10.1190/GEO2011-0392.1
dc.rights© 2012 Society of Exploration Geophysicistsen_US
dc.sourceGeophysics
dc.subjectDiffractionen_US
dc.subjectSeismic tomographyen_US
dc.subjectSeismic waves--Speeden_US
dc.subjectSeismic wavesen_US
dc.subjectKinematicsen_US
dc.titleTomography of Diffraction-Based Focusing Operatorsen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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