Título: | SEISMIC AMPLITUDE SMOOTHING BY ANISOTROPIC DIFFUSION PRESERVING STRUCTURAL FEATURES | ||||||||||||
Autor: |
PATRICIA CORDEIRO PEREIRA PAMPANELLI |
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Colaborador(es): |
MARCELO GATTASS - Orientador |
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Catalogação: | 23/FEV/2016 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=25824&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=25824&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.25824 | ||||||||||||
Resumo: | |||||||||||||
Seismic interpretation can be viewed as a set of methodologies to
enhance the understanding of the structural and stratigraphic model of
a given region. During this process, the interpreter analyzes the seismic
imaging seeking to identify geological structures such as faults, horizons and
channels, among others. Given the low signal to noise ratio, the algorithms
that support the interpretation require a pre-processing stage where the
noise is reduced. This thesis proposes a new filtering method based on
the anisotropic diffusion of the amplitude field. The formulation of the
diffusion process proposed here uses seismic attributes to identify horizons
and faults that are preserved in the diffusion process. The proposed method
implemented in this thesis also presents results applied to real and synthetic
data. Based on these results, we present an analysis of the influence of
the proposed method in correlation measurements over horizons previously
tracked. Finally the thesis presents some conclusions and suggestions for
future work.
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