Dissertação

Processamento e imageamento NMO/CRS de dados sísmicos marinhos

This work is devoted to processing and imaging of marine seismic reflection data selected from the Jequitinhonha Basin, Bahia, where two stack methods were used, the NMO-based and the CRS-based. It was also applied the CRS-partial prestack data enhancement for the densification of CMPs. Several test...

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Autor principal: NUNES, Fernando Sales Martins
Grau: Dissertação
Idioma: por
Publicado em: Universidade Federal do Pará 2019
Assuntos:
Acesso em linha: http://repositorio.ufpa.br/jspui/handle/2011/11597
Resumo:
This work is devoted to processing and imaging of marine seismic reflection data selected from the Jequitinhonha Basin, Bahia, where two stack methods were used, the NMO-based and the CRS-based. It was also applied the CRS-partial prestack data enhancement for the densification of CMPs. Several tests were performed with these methods to optimize parameters of the stacking operators, and to improve the processing strategies. One of the efforts during processing was the attenuation of the surface-related multiple, what was attacked by applying the Radon and SRME techniques. It was also applied the densification of the data to improve the signal/noise ratio. As a conclusion, a strategy was chosen based on the comparative results of better visual and higher coherence values, having the CRS method presented superior results to the results with the NMO method, based on the visualization of reflection events that were not noticed in other sections.