Simulation Analysis of CO 2 -EOR Process and Feasibility of CO 2 Storage during EOR

Maja Arnaut, Domagoj Vulin, Gabriela José García Lamberg and Lucija Jukić
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Maja Arnaut: Department of Petroleum and Gas Engineering and Energy, Faculty of Mining, Geology, and Petroleum Engineering, Pierottijeva 6, 10 000 Zagreb, Croatia
Domagoj Vulin: Department of Petroleum and Gas Engineering and Energy, Faculty of Mining, Geology, and Petroleum Engineering, Pierottijeva 6, 10 000 Zagreb, Croatia
Gabriela José García Lamberg: Independent Researcher, Santiago 8320000, Chile
Lucija Jukić: Department of Petroleum and Gas Engineering and Energy, Faculty of Mining, Geology, and Petroleum Engineering, Pierottijeva 6, 10 000 Zagreb, Croatia

Energies, 2021, vol. 14, issue 4, 1-28

Abstract: In this study, oil production and retention were observed and compared in 72 reservoir simulation cases, after which an economic analysis for various CO 2 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 CO 2 sequestration. Those reservoir conditions affect oil production and CO 2 retention differently. The retention trend dependence on depth was not monotonic—optimal retention relative to the amount of injected CO 2 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 CO 2 -enhanced oil recovery (EOR) with a WAG injection strategy.

Keywords: numerical simulation; EOR; CO 2 utilization and storage; mobility control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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