Hydrocarbon Potential of the South-Western Part of the Cauto Basin, Cuba

The “Assessment of the southwestern of the Cauto Basin and its oil and Gas possibilities in Cuba” was carried out with the objective of evaluating the southwestern part of the Cauto Basin in Cuba from the geological and geophysical point of view, with the southwestern of the Basin as a foundation of the petroleum system models. The method of investigation employed included interpretation of the seismic lines, the surface geology, the well logging data, gravimetric and magnetometrics data. The research was developed in three fundamental stages: I) Preliminary stage, II) Data processing and III) Interpretation of results/conclusions and recommendations. The characterization of sedimentary structures was assessed, and the evolution of the studied basin was also realized. Based on the result of this study, the origin of Cauto Basin can be linked to the geological event that occurred in the area towards the end of the Cretaceous era which involves complex sedimentary processes with associated collusions and extension of tectonic transcurrente. This leads to formation of Delta zones and important fans, which were the product of rapid sedimentation and slow subsidence. Furthermore, the result reveals that the studied interval can be described as a potential reservoir for being part of the fan and deltaic zone. There is evidence of the presence of hydrocarbon within the studied interval, but probing further depth has the potential of more discovery within the source rock since only the Tertiary reservoirs were evaluated.