Prestack Migration Velocity Analysis Using Time-remigration Trajectories

dc.creatorCoimbra T.A.
dc.creatorSantos H.B.
dc.creatorSchleicher J.
dc.creatorNovais A.
dc.date2014
dc.date2015-06-25T17:57:23Z
dc.date2015-11-26T14:51:07Z
dc.date2015-06-25T17:57:23Z
dc.date2015-11-26T14:51:07Z
dc.date.accessioned2018-03-28T22:02:39Z
dc.date.available2018-03-28T22:02:39Z
dc.identifier9781632666949
dc.identifier76th European Association Of Geoscientists And Engineers Conference And Exhibition 2014: Experience The Energy - Incorporating Spe Europec 2014. Eage Publishing Bv, v. , n. , p. 797 - 801, 2014.
dc.identifier
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dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84907385035&partnerID=40&md5=c4f4ccc36f0fd9b18d76f4800a37e52b
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/87235
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/87235
dc.identifier2-s2.0-84907385035
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1254394
dc.descriptionWe present a prestack time-migration tool for local improvement of the seismic migration-velocity model. The method is based on time-remigration trajectories. It determines kinematic parameters using local-slope information of seismic reflection events. These parameters, in turn, are used to locally correct the velocity model. The main advantage of this technique is that it allows to carry out a moveout correction not just at a fixed point in a zero-offset (post-stack) time-migrated gather, but varying through all offsets of a common image gather (CIG), and taking into account the reflection-point displacement in the midpoint direction. In other words, it provides for migration velocity analysis (MVA) by time-remigration trajectories in prestack data. Tests on synthetic and SMAART-Sigsbee2B data show that the proposed tool not only increased the velocity-model resolution, but also provides a plausible time-migrated image.
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dc.description797
dc.description801
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dc.languageen
dc.publisherEAGE Publishing BV
dc.relation76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy - Incorporating SPE EUROPEC 2014
dc.rightsfechado
dc.sourceScopus
dc.titlePrestack Migration Velocity Analysis Using Time-remigration Trajectories
dc.typeActas de congresos


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