The Beryl Formation, the primary reservoir in the Beryl Field, has a complicated distribution of pressures and fluids. Horizontal permeability restrictions, the result of extensive faulting, subdivide the reservoir into eight inter-related areas as determined by careful analyses of pressure histories, production histories and fluid monitoring. This paper decribes the methodology for constructing a conceptual reservoir model for the Beryl reservoir to identify areas of unswept hydrocarbons, resulting in an aggressive drilling programme, and optimise the effort in simulation history matching.

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