عنوان مقاله [English]
Fluid permeability is one of the most important parameters in reservoir characterization. In this study, permeability calculated from different models and compared with the laboratory measured permeability in a hydrocarbon field in the central part of the Persian Gulf. The permeability models used in this study include Winland, Swanson, Pittman, and Dastidar. In this analysis, 50 mercury injection experiments from the Dalan and Kangan formations were used. Conclusions indicate that Swanson and Winland permeability models are the best reservoir permeability prediction models for the Kagan and Dalan carbonate formations, respectively. Swanson’s model unlike other models consider the effective of pore throats in mercury injection curve as the main factor, which has a key role in permeability prediction. In carbonate environments, there is not specific relation between porosity and permeability and so models that considered porosity as a factor for permeability prediction show less accuracy. The type of reservoir lithology (carbonate or clastic) due to the different facies and so petrophysical behavior of the rocks, has a major role in the developed model and so in permeability prediction. In this manner, the models that has been calibrated based on carbonates yield better prediction in the carbonates compared to models which calibrated based on clastic or both.