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This is a Quantitative Study study.

Pore-scale insight into the impact of heterogeneity in porous media on CO2–oil immiscible displacement

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Pore-scale simulations reveal how heterogeneity and wettability influence CO2–oil displacement, suggesting optimization strategies for EOR.

Increased pore-scale heterogeneity accelerates CO2 breakthrough time and reduces oil recovery efficiency.
Results show that capillary number effects are diminished by heterogeneity, affecting displacement front shape and residual oil distribution.
The study employs numerical simulations coupling Navier–Stokes equations with phase-field methods to analyze CO2–oil displacement.
The findings highlight the importance of pore structure heterogeneity, offering insights essential for enhancing CO2–EOR processes.

Liu et al. (2025) studied this question.

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Pore-scale simulations reveal how heterogeneity and wettability influence CO2–oil displacement, suggesting optimization strategies for EOR.