Método sísmico aplicado à Bacia de Cuyo

Abstract

The exploratory potencial of the Rivadavia depocenter, located at the Cuyo basin, has been evaluated by the Seismic Method, which was supported by the geochemical analyses performed in the samples from the source rock (Fm Cacheuta) found in the exploration wells located nearby the production areas. The understanding of the Seismic Method is critical for this anaysis, thus, a review is carried out here. Is started up with a short review of both concepts: the elasticity theory and the wave theory, which enable to quantify the effects of the seismic waves while traveling through the subsurface beds. After the seismic method modeling definition, it was described the technical exploration process aspects, which are divided in three stages as follows: the seismic acquisition, the data processing and the seismic interpretation. The mentioned areas are the most fertile ground where the geophysicists can apply their technical knowledge. For the seismic acquisition the focus was the parametrization processing especially the evaluation of the acquisition parameters. In the data processing, it was described the basic workflow for the data handling and the elaboration of the seismic sections to the interpreters, which is the main task of this stage. Finally, in the interpretation stage it was shortly described the analisys processing of wells location. The Rivadavia area, which is under exploration nowadays because of the lack of hydrocarbon evidences, should be considered as a potential exploration target area based on the correlation analysis applied to the production areas nearby the Rivadavia depocenter.