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Navegando por Autor "CARNEIRO, Raimundo Nonato Colares"

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    Marcação e atenuação de múltiplas de superfície livre, processamento e imageamento em dados sísmicos marinhos
    (Universidade Federal do Pará, 2012) CARNEIRO, Raimundo Nonato Colares; LEITE, Lourenildo Williame Barbosa; http://lattes.cnpq.br/8588738536047617
    The present research aimed to the analysis and mitigation of multiple free surface, processing and imaging of marine seismic data to obtain useful images migrated to the geological interpretation focused on oil exploration. Attention has been paid to the systematic study of multiple unobstructed view of the prediction filter based on the theory of communication in order to better apply the filter deconvolution WH predictive, in processing stage subsequent to the NMO correction, although other methods may be considered as competitive. The identification and attenuation of multiple reflections in real seismic data remains a major challenge in seismic data processing, since they are considered as noise. However, this noise being classified as coherent, several techniques have been developed aiming at mitigation to avoid cascading errors in the later stages such as processing, scheduling events, tomographic inversion, imaging, and finally the geological interpretation of the images obtained. Another aspect in this study was to establish a flowchart of processing, imaging and attenuation of multiple free surface of a central step. Migrated sections were obtained in time and depth where it allows the interpretation. The development of this research was preformed with CWP/SU and MatLab packages.
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