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dc.contributor.advisorTSvankin, I. D.
dc.contributor.authorCai, Pengfei
dc.contributor.committeememberDavis, Thomas L. (Thomas Leonard), 1947-
dc.contributor.committeememberLynn, Walter
dc.date.accessioned2007-01-03T05:35:49Z
dc.date.available2007-01-03T05:35:49Z
dc.date.issued2013
dc.description2013 Spring.
dc.descriptionIncludes illustrations (some color).
dc.descriptionIncludes bibliographical references (pages 55-57).
dc.description.abstractCombining PP-waves with mode-converted PS reflections in migration velocity analysis can help build more accurate VTI velocity models. To avoid problems caused by the moveout asymmetry of PS-waves and take advantage of efficient MVA algorithms designed for pure modes, I suggest to generate pure SS-reflections from PP and PS data using the PP+PS=SS method. Then the residual moveout in both PP and SS common-image gathers is minimized during iterative velocity updates. The objective function also includes the differences between the migrated depths of the same reflectors on the PP and SS sections and a regularization term. Synthetic examples confirm that 2D MVA of PP- and PS-waves may be able to resolve all four relevant parameters of VTI media if reflectors with at least two distinct dips are available. The algorithm is also applied to a 2D line from 3D OBS data acquired at Volve field in the North Sea.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierT 7171
dc.identifier.urihttp://hdl.handle.net/11124/79397
dc.languageEnglish
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.relation.ispartof2013 - Mines Theses & Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectMVA
dc.subjectmulticomponent
dc.subjectcodepth
dc.subjectanisotropy
dc.subject.lcshSeismic prospecting
dc.subject.lcshAnisotropy
dc.subject.lcshShear waves
dc.subject.lcshWaves
dc.titleJoint migration velocity analysis of PP- and PS-waves for VTI media
dc.typeText
thesis.degree.disciplineGeophysics
thesis.degree.grantorColorado School of Mines
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)


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