عنوان مقاله [English]
In the present study, injection of different gases in a fractured reservoir of Iran were simulated by various techniques. Scince natural, nitrogen, separator and miscible gases were injected, also an economic evaluation was done in this field. Results indicate that the miscible gas exhibited the highest recovery factor (57.2%). This value for natural gas N2 were nearly the same. Using the Eclipse commercial simulator, the composition of black oil was simulated and economic calculations were carried out by measruing the amount of inection gas of the reservoir. The recovery factor of two gases were almost the same, however amount of methane is lower than N2. Based on economic calculations, it was revealed that methane is the most suitable injection gas for this field.