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dc.contributor.authorMa, Xuxin
dc.contributor.authorAlkhalifah, Tariq Ali
dc.date.accessioned2016-01-18T14:13:44Z
dc.date.available2016-01-18T14:13:44Z
dc.date.issued2012-10-25
dc.identifier.citationMa, X., & Alkhalifah, T. (2012). Wavefield extrapolation in caustic-free normal ray coordinates. SEG Technical Program Expanded Abstracts 2012. doi:10.1190/segam2012-0104.1
dc.identifier.doi10.1190/segam2012-0104.1
dc.identifier.urihttp://hdl.handle.net/10754/593745
dc.description.abstractNormal ray coordinates are conventionally constructed from ray tracing, which inherently requires smooth velocity profiles. To use rays as coordinates, the velocities have to be smoothed further to avoid caustics, which is detrimental to the mapping process. Solving the eikonal equation numerically for a line source at the surface provides a platform to map normal rays in complex unsmoothed velocity models and avoid caustics. We implement reverse-time migration (RTM) and downward continuation in the new ray coordinate system, which allows us to obtain efficient images and avoid some of the dip limitations of downward continuation.
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/segam2012-0104.1
dc.subjectpoststack
dc.subjectray tracing
dc.subjectwave equation
dc.subjectone-way
dc.subjectreverse-time
dc.titleWavefield extrapolation in caustic-free normal ray coordinates
dc.typeConference Paper
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSeismic Wave Analysis Group
dc.identifier.journalSEG Technical Program Expanded Abstracts 2012
dc.conference.dateNovember 4-9, 2012
dc.conference.nameSEG Technical Program Expanded Abstracts 2012
dc.conference.locationLas Vegas, Nevada
dc.eprint.versionPublisher's Version/PDF
kaust.personMa, Xuxin
kaust.personAlkhalifah, Tariq Ali
refterms.dateFOA2018-06-13T13:55:46Z
dc.date.published-online2012-10-25
dc.date.published-print2012-09


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