Comparison of Methane And co2Gas Injections With Natural Depletion State In One Of Iranian Oil Reservoirs

Methane injection or gas cycling is the recovery process of choice for oil reservoirs. For economic reasons however, this process cart often not be implemented. An alternative injection gas may be , which is relatively cheap and available everywhere. However, it is possible causes stronger liquid drop-out inthe mixing zone between the oil and the injected gas, which could reduce recovery. The paper presents the results of slim-tube test and numerical simulations in one of Iranian under saturated oilfields at reservoir condition by and methane injections then compare the results with natural depletion of reservoir. The main conclusion of this study is that the displacement of oil by both and methane is a developed miscible process, which results in high recoveries, at the end injection caused to more field production and prepares better condition of field pressure

Keywords:

MMP1 , Simulation , Enhanced Oil Recovery , OOIP2 , FPR3 , Oil Recovery Factor