Nascimento da Silva, Carlos CésarSantos, Bruno Barauna dos2018-12-062021-09-202018-12-062021-09-202018-11-29SANTOS, Bruno Barauna dos. Processamento sísmico de reflexão: o dado BP 2014. 2018. 59f. Relatório Graduação em Geofísica) - Departamento de Geofísica, Universidade Federal do Rio Grande do Norte, Natal, 2018.https://repositorio.ufrn.br/handle/123456789/34351Reflection seismic is classified as an indirect method of exploration of subsurface, mainly applied for exploration of hydrocarbon deposits. Among its advantages, it has the capacity to generate seismic images with the best possible definition of the geological features, besides allowing the coverage of large areas of acquisition, when compared to the direct method of well drilling. This area of geophysics enables petroleum engineering to advance exploration and identification of deposits. The reflection seismic comprises the trio: acquisition, processing and interpretation. Not to mention, all these steps must always be correlated with the geology of the area of interest. During the acquisition of the data receivers receive signals, which are responses of the reflections, but part of them comprise the noises that may be coherent or not. If so, it is necessary the parameterized processing in order to remove the errors and generate an image of a seismic session that can be interpreted and that is also pertinent with the geology of the analyzed area. For this work, a synthetic data, based on a 2D marine seismic survey, was used, representing the complex geology of the Caspian Sea. The region has units saturated in gas, comprising the localized superficial anomalies. In the data is well evidenced the multiple reflection of first order. In the processing, Landmark / Halliburton's ProMAX / SeisSpace software was used, with a grant type academic version 5000.10.0.4 with the Federal University of Rio Grande do Norte (UFRN). Processing stages consisted of: spherical divergence correction, Spiking deconvolution, FK filtering, Normal MoveOut (NMO) correction, mute, Dip MoveOut (DMO) correction, stacking and Kirchhoff migration in time. In addition to these steps, velocity analysis was performed, which is applied in some of these stages and of extreme importance for all processing. In the FK filtration, the multiple were not removed, but slightly attenuated. This is due to the fact that the time interval between the primary reflection and its first-order multiple is very short, as well as the lack of velocity contrasts in the semblance panel that can identify them. Besides that for many times, these events are not distinguished in the semblance panel. Due to this result, the multiple were properly signaled so that they were not interpreted as a geological interface. Gains and filters were applied to the migrated section. The results were quite satisfactory, since it achieved a good quality of information for the geological model that was idealized.Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/Processamento de dadosSísmica de reflexãoFiltragem FKbachelorThesis