Improving Seismic Image with Advanced Processing Techniques

• Main Authors: Mericy Lastra Cunill, José Luis Prol Betancourt, María Rifá Hernández
• Format: Article
• Language: Spanish
• Published: Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae 2012-07-01
• Series: Revista Cubana de Ingeniería
• Subjects: procesamiento sísmico; estáticas; velocidades; anisotroía
• Online Access: http://rci.cujae.edu.cu/index.php/rci/article/view/87

Taking Taking into account the need to improve the seismic image in the central area of Cuba, specifically in the area of the Venegas sector, located in the Cuban Folded Belt, the seismic data acquired by Cuba Petróleo (CUPET) in the year 2007 was reprocessed according to the experience accumulated during the previous processing carried out in the same year, and the new geologic knowledge on the area. This was done with the objective of improving the results. The processing applied previously was analyzed by reprocessing the primary data with new focuses and procedures, among them are the following: the attenuation of the superficial wave with a filter in the Radon domain in its lineal variant, the change of the primary statics corrections of elevation by those of refraction, the study of velocity with the selection automatic biespectral of high density, the study of the anisotropy, the attenuation of the random noise, and the pre stack time and depth migration. As a result of this reprocessing, a structure that was not identified in the seismic sections of the previous processing was located at the top of a Continental Margin sediment located to the north of the sector that increased the potentialities of finding hydrocarbons in quantities of economic importance thus diminishing the risk of drilling in the sector Venegas.