Shahraki - NIOC – Improved Oil Recovery Institute, Tehran, Keshavarz Av., No.۲۷, ۳rd floor.
Tahani - NIOC – Improved Oil Recovery Institute, Tehran, Keshavarz Av., No.۲۷, ۳rd floor.
Zolfagharian - NIOC – Improved Oil Recovery Institute, Tehran, Keshavarz Av., No.۲۷, ۳rd floor.

The minimum composition of gas at which miscibility occurs is called minimum miscibility composition or enrichment (MMC or MME). Gas enrichment is an important optimization parameter in enriched gas injection. Recoveries from slim tube experiments often give a sharp bend at MME. Local displacement efficiency from gas injection is highly dependent on the minimum miscibility pressure (MMP) or (MME). For determination of these factors every one can use slim tube test that is too expensive and time consuming by using a correlation one can reduce the number of experiment and reach to an accurate point of MME or MMP. In This paper we developed a correlation for MME in term of maximum allowable methane that can be injected for MME.

Miscibility, gas injection, gas enrichment, MME