The present work had aimed at an evaluation of the seismic modeling, processing and
imaging of a line of the marine part of the Jequitinhonha Basin. In this sense, we emphasize
the need for the physical, mathematical and computational understanding of the methods
and processes involved. The modeling method was based on ray theory, which is directly
related to the modeling and processing methods (NMO and CRS). The processing methods
were the NMO and CRS in order to locate specular interfaces and diffraction zones, where
the method with the best visual definition was accredited; thus, the CRS delineated
better the reflectors in the CRS-stacked and CRS-migrated sections. An initial part of
this study was the velocity model representation in the seismic domain, 𝑣(𝑡), and in the
geological domain 𝑣(x). The distribution of velocities of the waves P, 𝑣𝑃 , (where can be
added the so desired information of the S waves, 𝑣𝑆), is fundamental for the parts of the
seismic processing and migration that looks for a geological interpretation. As a detail
of a future modeling to be highlighted is of 3D structures Jequitinhonha Basin, aiming
at numerical modeling of the basin, where is necessary the knowledge of the P and S
velocities, and the density distribution in the subsurface. Usually this additional and
detail knowledges are constructed by empirical models, that results in the possibility of
going beyond the migration processes and realize the pressure prediction, deformation and
stress distribution in the subsurface. The pressure variation defines zones of low and high
pressure that behaves like natural pumping for the accumulation of fluids (oil, gas and
water). In addition to the natural pumping process, it is required geological conditions
such as oil and gas generation, thermal regime, and confined trapping.
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