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Field Scale Simulation Study of Miscible Water Alternating CO2 Injection Process in Fractured Reservoirs

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http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52911#.VKyah8nQrzE

ABSTRACT
Vast amounts of world oil reservoirs are in natural fractured reservoirs. There are different methods for increasing recovery from fractured reservoirs. Miscible injection of water alternating CO2 is a good choice among EOR methods. In this method, water and CO2 slugs are injected alternatively in reservoir as miscible agent into reservoir. This paper studies water injection scenario and miscible injection of water and CO2 in a two dimensional, inhomogeneous fractured reservoir. The results show that miscible water alternating CO2 gas injection leads to 3.95% increase in final oil recovery and total water production decrease of 3.89% comparing to water injection scenario.
 
Cite this paper
Karaei, M. , Ahmadi, A. , Fallah, H. , Kashkooli, S. and Bahmanbeglo, J. (2015) Field Scale Simulation Study of Miscible Water Alternating CO2 Injection Process in Fractured Reservoirs. Geomaterials, 5, 25-33. doi: 10.4236/gm.2015.51003.
 
References
[1]Thompson, J.L. and Mungan, N. (1968) A Laboratory Study of Gravity Drainage in Fractured Systems under Miscible Condition. The 43rd SPE Annual Fall Meeting, Houston.
 
[2]Christensen, J.R., Stenby, E.H. and Skauge, A. (2001) Review of WAG Field Experience. SPE Reservoir Evaluation and Engineering, 4, 97. http://dx.doi.org/10.2118/71203-PA
 
[3]Kulkarni, M.M. and Rao, D.N. (2005) Experimental Investigation of Miscible and Immiscible Water-Alternating-Gas (WAG) Process Performance. The Craft and Hawkins Department of Petroleum Engineering, Louisiana State University, Baton Rouge.
 
[4]Dorostkar Mohammad, J. and Mohebi, A. (2009) Laboratory Evaluation of Warm Water Alternating Immiscible Gas Injection Warm of Carbon Dioxide for Enhanced Oil Recovery in Fractured Model. Enhanced Oil Recovery—Iranian Chemical Engineering Journal, 8.
 
[5]Taghavi, S.A. and Moradi, A. (2009) Compared Using Simulated Oil Recovery Factor of Miscible Gas Injection and Immisible Gas Injection in Iranian Fractured Reservoirs. Enhanced Oil Recovery—Iranian Chemical Engineering Journal, 8.                                                                                                                              eww150107lx
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