Ali Nozari - Institute of Petroleum Engineering Faculty of Engineering _University of Tehran
Farhang Jalali - Institute of Petroleum Engineering Faculty of Engineering _University of Tehran
Alireza Behbahaninia - Institute of Petroleum Engineering Faculty of Engineering _University of Tehran

Phase behavior characterization for a oil reservoir with an initial gas cap located in south of Iran has been conducted. Peng-Robinson EOS was selected and tuned for this purpose. Conventional PVT experiments were available for 11 wells in the reservoir. Reliable data was recognized by analyzing the experimental data. This reservoir consists of asmari and bangestan formations. The latter indicates that the fluid properties may be not identical through the reservoir. All reliable data was used for tuning a unique EOS for reservoir fluid using Winprop phase behavior package from Computer Modeling Group (CMG).

Saturation Pressure; Pseudo component; C7+; Smoothing, EOS