Rock Types and Flow Units in Static and Dynamic Reservoir Modeling: Application to Mature Fields

Abstract

Abstract The definition of rock types (RT) and flow units (FU) in the static and dynamic models is useful to have a better description of the potential zones with a reservoir quality. The study and integration of information from conventional and special core analysis, well logs, test pressure, geocellular model, gridding and properties upscaling to simulation are required for the reservoir modeling characterization. The Winland and Flow Zone Indicator (FZI) methods to identify RT, as well as, the Stratigraphic Modified Lorenz (SMLP) method for FU; are the most used techniques to determine the properties at the well level. This document describes a workflow of that techniques at well level to be applied to the 3D static and dynamic reservoir models. The main objective is to identify the different features of the RT and FU in the entire reservoir. As result of this methodology, the FU are well defined and are used to determine the zone mapping in the upscaling process to perform the reservoir simulation model; and put new wells with oil opportunities in a mature field.