Ludmila Vesjolaja
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway
Ambrose Ugwu
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway
Arash Abbasi
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway
Emmanuel Okoye
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway
Britt M. E. Moldestad
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway
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http://dx.doi.org/10.3384/ecp17142858Published in: Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
Linköping Electronic Conference Proceedings 142:126, p. 858-864
Published: 2018-12-19
ISBN: 978-91-7685-399-3
ISSN: 1650-3686 (print), 1650-3740 (online)
CO2-EOR is one of the main methods for tertiary oil recovery. The injection of CO2 does not only improve oil recovery, but also contribute to the mitigation of greenhouse gas emissions. In this study, near well simulations were performed to determine the optimum differential pressure and evaluate the effect of CO2 injection in oil recovery. By varying the drawdown from 3 bar to 20 bar, the most suitable differential pressure for the simulations was found to be 10 bar. The effect of CO2 injection on oil recovery was simulated by adjusting the relative permeability curves using Corey and STONE II correlations. By decreasing the residual oil saturation from 0.3 to 0.15 due to CO2 injection, the oil recovery factor increased from 0.52 to 0.59 and the water production decreased by 22%.
