Abstract
Capillary behaviors of two phases in porous media are widely investigated by pore-scale simulations. Flow properties of miscible two-phase fluids pose challenges because compositional species in miscible fluids exist in both of two phases. In this work, pore-network modeling is developed to analyze capillary behaviors of miscible fluids. First, the pore-network structure is generated by introducing the Halton sequence and the Delaunay triangulation. Then, we perform the primary drainage to simulate the variation of capillary pressure as a function of saturation under equilibrium conditions. The miscibility details of two-phase fluids are determined by two-phase flash calculations. The effect of representative network sizes on capillary behaviors is analyzed to balance computational demands and interpretability. Our models demonstrate the efficiency and the robustness of the network generation procedure. Finally, our simulation results indicate that the miscibility of fluids significantly influences capillary behaviors, highlighting the necessity of species-specific compositional modeling for miscible two-phase fluids in porous media.
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References
Li, Y., Yang, H., Sun, S.: Fully implicit two-phase VT-flash compositional flow simulation enhanced by multilayer nonlinear elimination. J. Comput. Phys. 449, 110790 (2022)
Chen, S., Qin, C., Guo, B.: Fully implicit dynamic pore-network modeling of two-phase flow and phase change in porous media. Water Resour. Res. 56(11), e2020WR028510 (2020)
Cardona, A., Liu, Q., Santamarina, J.C.: The capillary pressure vs. saturation curve for a fractured rock mass: fracture and matrix contributions. Sci. Rep. 13(1), 12044 (2023)
Cui, R., Hassanizadeh, S.M., Sun, S.: Pore-network modeling of flow in shale nanopores: network structure, flow principles, and computational algorithms. Earth-Sci. Rev. 234, 104203 (2022)
Firoozabadi, A.: Thermodynamics and Applications in Hydrocarbon Energy Production, 1st edn. McGraw-Hill Education, New York (2016)
Kocis, L., Whiten, W.J.: Computational investigations of low-discrepancy sequences. ACM Trans. Math. Softw. 23(2), 266–294 (1997)
Qin, C., Hassanizadeh, S.M., Ebigbo, A.: Pore-scale network modeling of microbially induced calcium carbonate precipitation: insight into scale dependence of biogeochemical reaction rates. Water Resour. Res. 52(11), 8794–8810 (2016)
Raoof, A., Hassanizadeh, S.M.: A new method for generating pore-network models of porous media. Transp. Porous Med. 81, 391–407 (2010)
Joekar-Niasar, V., Hassanizadeh, S., Leijnse, A.: Insights into the relationships among capillary pressure, saturation, interfacial area and relative permeability using pore-network modeling. Transp. Porous Med. 74, 201–219 (2008)
Cui, R., Feng, Q., Chen, H., Zhang, W., Wang, S.: Multiscale random pore network modeling of oil-water two-phase slip flow in shale matrix. J. Petrol. Sci. Eng. 175, 46–59 (2019)
Joekar-Niasar, V., Hassanizadeh, S.M., Dahle, H.K.: Non-equilibrium effects in capillarity and interfacial area in two-phase flow: dynamic pore-network modelling. J. Fluid Mech. 655, 38–71 (2010)
Li, Y., Kou, J., Sun, S.: Thermodynamically stable two-phase equilibrium calculation of hydrocarbon mixtures with capillary pressure. Ind. Eng. Chem. Res. 57(50), 17276–17288 (2018)
Cui, R., Narayanan Nair, A.K., Che Ruslan, M.F.A., Yang, Y., Sun, S.: Interfacial properties of the hexane+ carbon dioxide+ brine system in the presence of hydrophilic silica. Ind. Eng. Chem. Res. 62(34), 13470–13478 (2023)
Acknowledgments
This study is supported by King Abdullah University of Science and Technology (KAUST) through the grants BAS/1/1351-01 and URF/1/5028-01.
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Cui, R., Sun, S. (2024). Capillary Behaviors of Miscible Fluids in Porous Media: A Pore-Scale Simulation Study. In: Franco, L., de Mulatier, C., Paszynski, M., Krzhizhanovskaya, V.V., Dongarra, J.J., Sloot, P.M.A. (eds) Computational Science – ICCS 2024. ICCS 2024. Lecture Notes in Computer Science, vol 14838. Springer, Cham. https://doi.org/10.1007/978-3-031-63783-4_1
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DOI: https://doi.org/10.1007/978-3-031-63783-4_1
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