دانلود مقاله Comparison of Methan and Nitrogen Gas Injections with Natural Depletion state in one of Iranian Oil Reservoirs فای
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سال انتشار: 1390
محل انتشار: سومین کنگره ملی مهندسی نفت
تعداد صفحات: 8
نویسنده(ها):
Leili Fatahi Mehrban – Islamic Azad University, Science and research branch, Department of Petroleum Engineering, Tehran, Iran
Mohsen Masihi – Sharif University of technology, Department of Chemical and Petroleum Engineering, Tehran, Iran
Mohamad Fatahi Mehrban – Islamic Azad University, Science and research branch, Department of Petroleum Engineering, Tehran, Iran
چکیده:
Methane injection or gas cycling is the recovery process of choice for oil reservoirs. For economic reasons however, this process cart often notbe implemented. An alternative injection gas may be nitrogen, which isrelatively cheap and available everywhere.However, it is possible Nitrogencauses stronger liquid drop-out in the mixing zone between the oil and theinjected gas, which could reduce recovery.The paper presents the results of slim-tube test and numerical simulations inone of Iranian under saturated oil fields at reservoir condition by nitrogen and methan injections then comrare the results with natural depletion of reservoir.The main conclusion of this study is that the displacement of oil by bothnitrogen and methane is a developed miscible process, which results in highrecoveries, at the end nitrogen injection caused to more field production and prepares better condition of field pressure.