True‐velocity Radon filter

Oliveira, Adelson S. de; Santos, João Roberto S.B. dos; Lima, Gilberto R. de

doi:10.1190/1.2792992

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“…Previous studies (Zhenwu et al, 2009a;2009b) have used a combination of only SRME and Radon filtering to attenuate multiples. Four different attenuation methods are applied: f − k filtering (Zhou & Greenhalgh, 1994;Houston, 1998;Lokshtanov & Helle, 1992), parabolic Radon filtering (Oliveira et al, 2007;Abbad et al, 2011), predictive deconvolution in the τ − p domain (Yilmaz, 2001) and SRME (Berkhout & Verschuur, 1997;Verschuur et al, 1992). These methods are used separately and in different combinations, and the results are analyzed.…”

Section: Introductionmentioning

confidence: 99%

Determination of an Optimal Processing Flow for the Suppression of Free-Surface Multiples in Real 2d Marine Data

Gomes¹

2013

Rev. Bras. Geof.

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ABSTRACT. The presence of multiple reflections is common in marine surveys due to the air-water interface. Multiples have significant energy and can mask deep reflectors, leading to the misinterpretation of seismic cross-sections. In this study, surface-related multiple elimination (SRME), predictive deconvolution in the τ − p domain and Radon and f − k filtering are used to eliminate surface multiples in real 2D marine data. These methods are applied in different combinations, and the results are analyzed with the aim of determining an optimal seismic processing flow for the removal of surface multiples.Keywords: surface multiples attenuation, SRME, Radon filtering, predictive deconvolution in the τ − p domain, f − k filtering. RESUMO.No levantamento marinhoé comum a presença de reflexões múltiplas devidoà interface ar-água. Essas reflexões múltiplas possuem energia considerável e podem mascarar reflexões primárias (refletores) levando a erros de interpretação da seção sísmica. Neste trabalhoé determinado um fluxoótimo de processamento sísmico para atenuação de múltiplas de superfície. Os métodos de eliminação de múltiplas de superfície (SRME), deconvolução preditiva no domínio τ − p e as filtragens Radon e f − k são aplicados a um dado marinho real 2D em diferentes combinações. Os resultados são analisados com objetivo de determinar um fluxo de processamento sísmicoótimo para atenuação de múltiplas de superfície.Palavras-chave: atenuação de múltiplas de superfície, SRME, filtragem Radon, deconvolução preditiva no domínio τ − p, filtragem f − k.

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Section: Introductionmentioning

confidence: 99%

Determination of an Optimal Processing Flow for the Suppression of Free-Surface Multiples in Real 2d Marine Data

Gomes¹

2013

Rev. Bras. Geof.

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True‐velocity Radon filter

Cited by 1 publication

References 2 publications

Determination of an Optimal Processing Flow for the Suppression of Free-Surface Multiples in Real 2d Marine Data

Determination of an Optimal Processing Flow for the Suppression of Free-Surface Multiples in Real 2d Marine Data

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