Service Description


The most obvious compositional effect in the immiscible gas/oil displacement process is swelling compositional effects, if the oil is not saturated with gas at the reservoir pressure or if the reservoir pressure is increased as a result of the gas injection, the volume of gas dissolved in the oil will increase until the oil is saturated at that pressure. At the same time and because of the increased volume of gas in solution in the oil, the oil formation volume factor (FVF) will increase. This phenomenon, commonly called swelling, can increase the efficiency of the gas/oil displacement process.

The compositional effects of immiscible gas injection are best calculated using a compositional numerical reservoir simulator.