Reservoir Rock Type Classification and Variation of Reservoir Quality in the Arab Formation, Dukhan Field, Qatar

This paper illustrates the importance of classification and identification of rock types within integrated reservoir<br>characterization studies. The goal is not to present a new classification scheme, but to draw attention to the benefits of a<br>classification that provides the basis for populating a geo-cellular model with key attributes (porosity, permeability,<br>saturation). Rock type, as derived from an integration of core examination, routine and special core analysis and wireline<br>logs, and conditioned with well tests, facilitates geologically reasonable property prediction. The study concludes that a<br>single classification scheme is impractical for all aspects of geological modeling. This work stems from a comprehensive<br>reservoir description study of the Jurassic Arab C and D reservoirs of the Dukhan field.