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  DOI Prefix   10.20431


 

International Journal of Petroleum and Petrochemical Engineering
Volume 3, Issue 3, 2017, Page No: 16-30

Analyze EOR Potential of a Mature Oil Reservoir Using CO2

Hisham Khaled Ben Mahmud1*,Ian Chang Huan Sheng2

1.Department of Petroleum Engineering, Curtin University, Sarawak, Malaysia
2.Sarawak Shell Berhad, Miri, Sarawak, Malaysia

Citation :Hisham Khaled Ben Mahmud,Ian Chang Huan Sheng, Analyze EOR Potential of a Mature Oil Reservoir Using CO2 International Journal of Petroleum and Petrochemical Engineering 2017,3(3) : 16-30

Abstract

Enhanced Oil Recovery (EOR) is an approach of producing residual oil in depleted reservoirs. Carbon Dioxide (CO2) injection is a promising method for EOR by increasing the reservoir pressure and also hydrocarbon displacement. CO2 injection has been widely used in oil industry as an effective technique for using CO2 is an optimization process that requires careful analysis. However, the objective of this project is to evaluate the application of CO2 injection as an enhanced oil recovery technique in sandstone reservoir and exploring possible improvement of oil production. An oil field located in South East Asia is considered in this study. The reservoir rock and fluid data were evaluated and implemented into Computer Modelling Group (CMG) simulator where a synthetic simulation model is built for this process having injection and production wells. A model is developed to perform history matching with field production data to verify the model results and to perform a sensitivity analysis on cumulative oil production. The results show that the location, number and pressure of injector wells improve the reservoir performance with an additional oil recovery of 5% OOIP, while injection rate has insignificant impact on the oil recovery with only 2% OOIP.


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