Modelo estadístico de la formación lajas (jurásico medio) en el yacimiento Aguada Toledo - Sierra Barrosa, provincia de Neuquén.

Abstract

This study presents a static model developed to analyze the Lajas Formation in the Aguada Toledo - Sierra Barrosa (ATSB) field, with the objective of evaluating its geological properties and determinating the residual hydrocarbon potential. These studies included the analysis of sedimentary environment, lithology, petrophysical characteristics and thicknesses. Eighteen wells were studied, using information from electrical logs, core and lateral cores, as well as petrophysical data and well logging. Through the well correlation process, the Lajas Formation was segmented into twelve different zones, with the purpose of facilitating the recognition of the psammitic levels. The generation of the petrophysical model allowed to determine precise calculations of the different thicknesses, including Net sand, Net reservoir and Net pay thicknesses, and to estimate the volume of hydrocarbons present in the reservoir. As a result, this study not only provided a static characterization of the Lajas Formation in the ATSB reservoir but also proposed the location of three new drilling sites that will contribute to a better development of the reservoir.