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Geological Characterisation Of Vaca Muerta Formation In La Amarga Chica (“Lac”) Block, Neuquén Basin, Argentina
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE Conference on Reservoir Geoscience, Dec 2018, Volume 2018, p.1 - 5
Abstract
LAC is one of the most prolific shale oil blocks in Vaca Muerta formation in the basin. The block is located in the southeast of the Neuquén Basin in the Centre-East sector of the province of Neuquén whereby the nearest town is Añelo, located 18 km southwest. The concession block, made up of a partnership between YPF and PEPASA, covers a total area of 186 km2, divided into 3 triangular areas, respectively known as the Southern Triangle (73 km2), the Central Triangle (56 km2) and the Northern Triangle (57 km2). A detailed characterization of geological structure, stratigraphic heterogeneity and reservoir properties within the Vaca Muerta formation in the block was done through an extensive data acquisition work, carried out during a three years’ pilot phase drilling campaign that involve vertical and horizontal wells drilling with full suite logging, drilling cutting analysis, fluid sampling, core and sidewall cores. Several surveillance tools such as chemical tracers and microseismic were also run to gain further understanding of the reservoir complexities that will steer the LAC development strategy.