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Article

Simulation Analysis of CO2-EOR Process and Feasibility of CO2 Storage during EOR

1
Department of Petroleum and Gas Engineering and Energy, Faculty of Mining, Geology, and Petroleum Engineering, Pierottijeva 6, 10 000 Zagreb, Croatia
2
Independent Researcher, Santiago 8320000, Chile
*
Author to whom correspondence should be addressed.
Academic Editor: Dandina N. Rao
Energies 2021, 14(4), 1154; https://doi.org/10.3390/en14041154
Received: 6 November 2020 / Revised: 10 February 2021 / Accepted: 17 February 2021 / Published: 22 February 2021
(This article belongs to the Special Issue Enhanced Oil Recovery 2020)
In this study, oil production and retention were observed and compared in 72 reservoir simulation cases, after which an economic analysis for various CO2 and oil prices was performed. Reservoir simulation cases comprise different combinations of water alternating gas (WAG) ratios, permeabilities, and well distances. These models were set at three different depths; thus different pressure and temperature conditions, to see the impact of miscibility on oil production and CO2 sequestration. Those reservoir conditions affect oil production and CO2 retention differently. The retention trend dependence on depth was not monotonic—optimal retention relative to the amount of injected CO2 could be achieved at middle depths and mediocre permeability as well. Results reflecting different reservoir conditions and injection strategies are shown, and analysis including the utilization factor and the net present value was conducted to examine the feasibility of different scenarios. The analysis presented in this paper can serve as a guideline for multiparameter analysis and optimization of CO2-enhanced oil recovery (EOR) with a WAG injection strategy. View Full-Text
Keywords: numerical simulation; EOR; CO2 utilization and storage; mobility control numerical simulation; EOR; CO2 utilization and storage; mobility control
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MDPI and ACS Style

Arnaut, M.; Vulin, D.; José García Lamberg, G.; Jukić, L. Simulation Analysis of CO2-EOR Process and Feasibility of CO2 Storage during EOR. Energies 2021, 14, 1154. https://doi.org/10.3390/en14041154

AMA Style

Arnaut M, Vulin D, José García Lamberg G, Jukić L. Simulation Analysis of CO2-EOR Process and Feasibility of CO2 Storage during EOR. Energies. 2021; 14(4):1154. https://doi.org/10.3390/en14041154

Chicago/Turabian Style

Arnaut, Maja, Domagoj Vulin, Gabriela José García Lamberg, and Lucija Jukić. 2021. "Simulation Analysis of CO2-EOR Process and Feasibility of CO2 Storage during EOR" Energies 14, no. 4: 1154. https://doi.org/10.3390/en14041154

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