RESERVOIR SIMULATION STUDY FOR DEPLETION DRIVE GAS RESERVOIR PERFORMANCE

للكاتبين :

A.E.Bayoumi *, M.A.Tantawy** and E.Eissa*

* Min. & Pet. Eng. Dept. Faculty of Engineering, Al-Azhar University, Cairo, Egypt.

** Pet. Eng. Dept. Faculty of Pet. & Min. Eng., Suez Canal University, Suez, Egypt.

ABSTRACT

Gas reservoir simulation is a tremendously powerful tool for helping the reservoir engineer to

understand a reservoir’s behavior. It is the standard method for solving reservoir flow

problems in fields and laboratories. Also it is used to improve management of the reservoir to

optimize that behavior. Therefore, the present research was aimed to simulate the depletion

drive gas reservoir. The simulation study includes the effect of gas reduced properties, gas

compressibility factor, and gas viscosity on the depletion drive gas reservoir performance.

Also the determination of original gas in place with forecasting of pressure and production

performance. The modified streamline model was designed to simulate depletion drive gas

reservoir performance. In this model Standing [8] correlation is the best correlation to

determine gas reduced properties, Dranchuk and Abu-Kassim [15] is the best correlation to

determine gas compressibility factor and Dempsey [18] correlation is the best correlation to

determine gas viscosity. The modified model has been used to calculate the OGIP for

anomaly-03 Darfeel field. It was found that the original gas in place is 110 BSCF. The

pressure and production performance of the investigated gas reservoir have been predicted

after successful history matching of the past performance of the reservoir.

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