Simulation of different mechanisms during co2 injection in haftkel field

سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 561

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شناسه ملی سند علمی:

ICRSIE01_087

تاریخ نمایه سازی: 25 آذر 1395

چکیده مقاله:

Reservoir management to enhance oil recovery, is always one of the concerns for the countries that have oil resources and each year vast sum of money is spent for research to enhance oil recovery. Owners of oil reserves try to get higher productivity from their own resources with new methods and less expensive methods. One of the most common methods of enhance oil recovery, is displacement of oil with gas injection. Injection of miscible gas is used to reduce or eliminate surface tension forces. On the other hand, most reservoirs of the Middle East region and also Iran are fractured reservoirs. Due to the matrix and fracture system which has different reservoir characteristics, fractured reservoirs are far more complex than conventional reservoir in prediction and simulation of fluid flow. Since typically the maximum amount of oil exists within the matrix, so we should use methods that can displace oil in the matrixes. One of the main methods for enhance oil recovery from fractured reservoirs is using gravity drainage mechanism within the matrix. In this case, injection of carbon dioxide as a miscible gas, is very effective as the low-pressure miscibility and providing a mechanism of gravity drainage and a significant increase in the ultimate recovery factor of this type of reservoirs.In this project, we try to use the information of one of Iranian's oil fields and then, by using the compositional model, the phenomenon of molecular diffusion effect on gravity drainage mechanism will be investigated. The results of the simulation shows, the importance of the phenomenon of molecular diffusion in the non-equilibrium gas injection into fractured reservoirs.

نویسندگان

Bahram Soltani

Department of Petroleum Engineering, Ahwaz Faculty of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Khuzestan, Iran

Shahab Aldin Taghipour

Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Khuzestan, Iran

Amin Imani

Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Khuzestan, Iran

Pouya Bakhtiyari Manesh

Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Khuzestan, Iran,

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