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<p>The numerical simulation of parameters in an artificial gas cap for CO<sub>2</sub> enhanced oil recovery (EOR) and storage presents a promising avenue to improve oil recovery while mitigating carbon emissions through geological storage. This study investigates the optimization of key parameters of both geological and development such as gas injection pressure and purity, reservoir heterogeneity, permeability, porosity and operational strategies using numerical simulation software CMG-GEM. By analyzing the interplay between oil recovery rate and CO<sub>2</sub> trapping mechanisms, this work provides a comprehensive understanding of the CO<sub>2</sub>-EOR system under varying conditions. The results reveal that certain set of geological parameters and operational parameters can significantly enhance oil recovery rate while ensuring effective CO<sub>2</sub> storage. Furthermore, the study models and evaluates the diffusion of CO<sub>2</sub> and storage mechanism under different development methods such as WAG and CO<sub>2</sub> injected continuously. These findings offer valuable insights into advancing sustainable energy practices and optimizing CO<sub>2</sub>-EOR systems.</p>

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Numerical Simulation Analysis of Parameters in an Artificial Gas Cap of CO2 Enhanced Oil Recovery and Storage

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • Lingfeng Qi,
  • Yong Zhang

摘要

The numerical simulation of parameters in an artificial gas cap for CO2 enhanced oil recovery (EOR) and storage presents a promising avenue to improve oil recovery while mitigating carbon emissions through geological storage. This study investigates the optimization of key parameters of both geological and development such as gas injection pressure and purity, reservoir heterogeneity, permeability, porosity and operational strategies using numerical simulation software CMG-GEM. By analyzing the interplay between oil recovery rate and CO2 trapping mechanisms, this work provides a comprehensive understanding of the CO2-EOR system under varying conditions. The results reveal that certain set of geological parameters and operational parameters can significantly enhance oil recovery rate while ensuring effective CO2 storage. Furthermore, the study models and evaluates the diffusion of CO2 and storage mechanism under different development methods such as WAG and CO2 injected continuously. These findings offer valuable insights into advancing sustainable energy practices and optimizing CO2-EOR systems.