Processamento e imageamento de dados sísmicos marinhos

Abstract

The work consisted of the processing and imaging of real seismic data obtained over the marine continental shelf of eastern Brazilian Atlantic of the Jequitinhonha Basin. The proprocessing stage was performed in partnership with the Seismic Research Group of Federal University of Bahia, that applied the SRME method for multiple attenuation of the data. In the sequel, this data was submitted to several processing techniques using the free package CWP/SU. The CRS processing stage consisted of the application of three workflows that used the CRS technology for simulating ZO sections. These workflows differed according to the sistematic inclusion of the processes named Residual Static Correction and Pre-stack Data Enhancement. The results of these three workflows were compared with each other to show the evolution of the visual quality of the resulting sections through the event continuity, as well as the signal-to-noise ratio. In addition to the stacked sections, it was also obtained the CRS migration sections that are intended to be used for plausible geological interpretation aiming at a possible indication for a successful drilling.