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<p>This review explores the multifaceted aspects of carbon dioxide (CO<sub>2</sub>) injectivity for geological storage in saline aquifers and depleted oil/gas reservoirs, emphasizing the significance of injectivity and its evaluation while also exploring the challenges and potential. The primary objective of this review paper is to outline the various experimental techniques employed to assess CO<sub>2</sub> injectivity, such as core flooding, microfluidic techniques, micro-CT, and resistivity measurements. Moving forward, the paper explores an array of factors influencing CO<sub>2</sub> injectivity, encompassing phenomena like salt and halite precipitation, dry-out effects, fines migration, and the complex interactions within the CO<sub>2</sub>/brine/rock system. The influence of injection conditions is also considered, emphasizing brine concentration, injection flow rate, temperature, and strategies to enhance injectivity. Finally, it discusses the challenges encountered in CO<sub>2</sub> injection and future directions.</p>

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A Review of Experimental Approaches to CO2 Injectivity in Geological Storage: Methods, Controlling Factors, and Challenges

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • Xianmin Zhou,
  • Wei Yu,
  • Ahmed Bashir,
  • Xiao Deng,
  • Hao Chen,
  • Quanrong Wang,
  • Arshad Raza,
  • Mohamed Mahmoud,
  • Shirish Patil,
  • Muhammad Shahzad Kamal

摘要

This review explores the multifaceted aspects of carbon dioxide (CO2) injectivity for geological storage in saline aquifers and depleted oil/gas reservoirs, emphasizing the significance of injectivity and its evaluation while also exploring the challenges and potential. The primary objective of this review paper is to outline the various experimental techniques employed to assess CO2 injectivity, such as core flooding, microfluidic techniques, micro-CT, and resistivity measurements. Moving forward, the paper explores an array of factors influencing CO2 injectivity, encompassing phenomena like salt and halite precipitation, dry-out effects, fines migration, and the complex interactions within the CO2/brine/rock system. The influence of injection conditions is also considered, emphasizing brine concentration, injection flow rate, temperature, and strategies to enhance injectivity. Finally, it discusses the challenges encountered in CO2 injection and future directions.