In recent years, several papers have been published on the subject of rock properties, stress and permeability models in the Vaca Muerta unconventional formation, with the intention of understanding fractured well performance. In most cases, however, these publications have failed on providing sufficient information to adequately describe the generated models, nor have studied in detail the benefits and limitations of applying different schools of thought and incorporating field measurements during the design and evaluation of hydraulic fractures. This work seeks to explain a systematic approach to characterize, constrain and validate such models through integration of prefrac diagnostic injections, core data, independently-determined fracture dimensions, and postfrac production data. The final objective is to build predictive models that can be used to improve completion strategies in this promising but still immature play.

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