This paper shows the methodology and results from the Integrated Study performed to the Abkatun, Pol and Chuc Reservoir Complex. These three fields, account for the largest light oil reserve in the Gulf of Campeche. Proven communication through the associated acquifer established the need of grouping the three fields in one simulation model.

The main producing formation is a fractured, vuggy carbonate breccia. The complex nature of porosity in the Breccia, received a special treatment. Vug percentage and vug connectivity maps were created to properly distribute vug porosity into matrix and fracture systems. Based on special core analysis and core flooding simulation, relative permeability and capillary pressure pseudo curves were developed to mimic the flow in the composite matrix + vug system.

Emphasis is made to show that this study is the result of a sustained effort to acquire data throughout the life of the reservoirs, its analysis and interpretation by geoscientists, reservoir, production and facilities engineers.

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