Abstract

MORALES-GONZALEZ, Jessica; MARTINEZ-ROJAS, Estenis de la Caridad; PARDO-ECHARTE, Manuel Enrique  and  RODRIGUEZ-MORAN, Osvaldo. The anomalous complex Oeste de Ceballos, Central Basin, Cuba, integration between unconventional methods and seismic. Considerations on oil exploration. Bol. geol. [online]. 2022, vol.44, n.1, pp.135-147.  Epub Jan 25, 2022. ISSN 0120-0283.  https://doi.org/10.18273/revbol.v44n1-2022006.

Non-seismic and unconventional methods constitute a support tool in oil exploration. The application of these methods in the Central Basin (oil fields associated with the volcano-sedimentary sequence of K2 in structuralstratigraphic traps) had good results, following the mapping of the perspective sector Oeste de Ceballos; however, integration with seismic and well information is essential to validate it. The objective is to interpret the existing seismic information in this sector with the non-seismic and unconventional exploration methods. The seismic lines of the sector were subjected to image treatment to highlight the reflectors of interest. The mooring of the nearby seismic lines with the one located on the anomalous complex, made it possible to determine the geological information of the horizons of interest. In its central part there is a rise of the top of the Cretaceous rocks related to fold systems. This lift corresponds to the front part of a fold (structural lift) that coincides with the edges of the K/Th anomaly, which gives it a special value for oil exploration. Also, the lithostratigraphic data provided by the Ceballos 3 well, shows the rising of the top tuff sandstones within the coverage of the Cretaceous Volcanic Arc, which are known as a reservoir in the area of the Pina oilfield.

Keywords : Non-seismic and non-conventional exploration methods; Seismic method; Central Basin; Gravimetric method; Magnetic method.

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