Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement

Detalhes bibliográficos
Autor(a) principal: Porsani, Milton José
Data de Publicação: 2013
Outros Autores: Ursin, Bjorn, Silva, Michelângelo Gomes da, Melo, Paulo E. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/18103
Resumo: Texto completo: acesso restrito. p.42–52
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spelling Porsani, Milton JoséUrsin, BjornSilva, Michelângelo Gomes daMelo, Paulo E. M.Porsani, Milton JoséUrsin, BjornSilva, Michelângelo Gomes daMelo, Paulo E. M.2015-10-09T18:52:49Z20130016-8025http://repositorio.ufba.br/ri/handle/ri/18103v. 61, n. 1Texto completo: acesso restrito. p.42–52We present a singular value decomposition (SVD) filtering method for the enhancement of coherent reflections and for attenuation of noise. The method is applied in two steps. First normal move-out (NMO) correction is applied to shot or CMP records, with the purpose of flattening the reflections. We use a spatial SVD filter with a short sliding window to enhance coherent horizontal events. Then the data are sorted in common-offset panels and the local dip is estimated for each panel. The next SVD filtering is performed on a small number of traces and a small number of time samples centred around the output sample position. Data in a local window are corrected for linear moveout corresponding to the dips before SVD. At the central time sample position, we sum over the dominant eigenimages of a few traces, corresponding to SVD dip filtering. We illustrate the method using land seismic data from the Tacutu basin, located in the north-east of Brazil. The results show that the proposed method is effective and is able to reveal reflections masked by ground-roll and other types of noise.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2015-03-11T13:18:39Z No. of bitstreams: 1 Milton J. Porsani.pdf: 8926782 bytes, checksum: 8e5342c509d6f03cc2b997e02ad2398e (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2015-10-09T18:52:49Z (GMT) No. of bitstreams: 1 Milton J. Porsani.pdf: 8926782 bytes, checksum: 8e5342c509d6f03cc2b997e02ad2398e (MD5)Made available in DSpace on 2015-10-09T18:52:49Z (GMT). No. of bitstreams: 1 Milton J. Porsani.pdf: 8926782 bytes, checksum: 8e5342c509d6f03cc2b997e02ad2398e (MD5) Previous issue date: 2013http://dx.doi.org/10.1111/j.1365-2478.2012.01059.xreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBALocal dipEigenimageDip-adaptive singular-value decomposition filtering for seismic reflection enhancementGeophysical Prospectinginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01Brasilinfo:eu-repo/semantics/openAccessengLICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/18103/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52ORIGINALMilton J. Porsani.pdfMilton J. Porsani.pdfapplication/pdf8926782https://repositorio.ufba.br/bitstream/ri/18103/1/Milton%20J.%20Porsani.pdf8e5342c509d6f03cc2b997e02ad2398eMD51TEXTMilton J. Porsani.pdf.txtMilton J. 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dc.title.pt_BR.fl_str_mv Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
dc.title.alternative.pt_BR.fl_str_mv Geophysical Prospecting
title Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
spellingShingle Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
Porsani, Milton José
Local dip
Eigenimage
title_short Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
title_full Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
title_fullStr Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
title_full_unstemmed Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
title_sort Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement
author Porsani, Milton José
author_facet Porsani, Milton José
Ursin, Bjorn
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
author_role author
author2 Ursin, Bjorn
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
author2_role author
author
author
dc.contributor.author.fl_str_mv Porsani, Milton José
Ursin, Bjorn
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
Porsani, Milton José
Ursin, Bjorn
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
dc.subject.por.fl_str_mv Local dip
Eigenimage
topic Local dip
Eigenimage
description Texto completo: acesso restrito. p.42–52
publishDate 2013
dc.date.issued.fl_str_mv 2013
dc.date.accessioned.fl_str_mv 2015-10-09T18:52:49Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/18103
dc.identifier.issn.none.fl_str_mv 0016-8025
dc.identifier.number.pt_BR.fl_str_mv v. 61, n. 1
identifier_str_mv 0016-8025
v. 61, n. 1
url http://repositorio.ufba.br/ri/handle/ri/18103
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1111/j.1365-2478.2012.01059.x
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instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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