Caracterización estratigráfica del grupo Neuquén en la zona este del yacimiento Estación Fernández Oro (EFO): Identificación de los principales niveles sello dentro de dicha unidad

Abstract

The following work is a report on a Licenciate thesis in Geology, carried out at the National University of Río Negro (Argentina). This thesis was possible thanks to the support of YPF (Fiscal Oilfields), the Provincial Government of Neuquén, YPF Foundation and, above all, the Universidad Nacional de Río Negro. The research required field visits, drilling equipment, shear analysis, 2D and 3D seismic, and the use of lithological and electrical profiles – which helped us to identify the main seal levels and their impact on the aquifers in the area. The main goal was to define a stratigraphic characterization of the Neuquén Group in the area of the EFO deposit. We focused our attention on the identification and areal distribution of the main seal levels and their possible implication in the vertical variations of salinity of the forming water, in order to protect the quality of the aquifers of the reservoir, which currently undergoes considerable hydrocarbon development.