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   An Investigation of Optimum Miscible Gas Flooding Scenario: A Case Study of An Iranian Carbonates Formation  
نویسنده Sadeghnejad Saeid ,Montazeri Mohsen
منبع Iranian Journal Of Oil And Gas Science And Technology - 2017 - دوره : 6 - شماره : 3 - صفحه:41 -54
چکیده    Gas injection into carbonate formations is one of the most important activities to protect oil reserves that can guarantee a steady production .on-time injection of enough gas can result in the recovery of billions barrels of oil. in addition, it can preserve a huge amount of gas for the next generations. if the reservoir depth is shallow, or the reservoir fluid has a little amount of intermediate components, the flooding of rich gases is highly recommended. in the designing of a miscible injection process, firstly the minimum miscibility pressure should be measured or determined analytically. in this study, first the pvti software is implemented to evaluate the miscibility of different injected gas, including carbon dioxide, nitrogen, methane, and different proportion of hydrocarbon gases. subsequently, e-300 software is used to predict the recovery of the gas injection into the formation under study from one of the iranian carbonate onshore fields. the investigation of the optimum injection rate as well as finding the proper layer of injection is investigated in details. the results show that the co2 flooding after a long natural production period result in higher efficiency than the miscible injection of methane at the early stage of production.
کلیدواژه Gas Injection Rate ,Miscible ,Immiscible ,Recovery ,Optimum Flooding Scenario
آدرس Tarbiat Modares University, Faculty Of Chemical Engineering, Department Of Petroleum Engineering, ایران, Islamic Azad University, Science And Research Branch, Oil Industries' Commissioning And Operation Company (Oico), ایران

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