A brief review of mechanisms for carbon dioxide sequestration into aquifer reservoirs

and article by Hadi Belhaj and Achinta Bera (Khalifa University of Science and Technology, Abu Dhabi, UAE) published in International Journal of Petroleum Engineering Volume 3 Number 3 (2017)

Abstract

This paper presents a thorough understanding of carbon dioxide (CO₂) gas sequestration mechanisms taking place at the time of injection, post injection and settlement of CO₂ into the aquifer reservoirs.

It also presents a broad model consisting of two positive components and one negative component to briefly describe the microscopic mechanisms that occur during CO₂ trapping. The force of displacement and the force of pore space enlargement to increase the CO₂ storage capacity are positive influencing factors for CO₂ trapping in the aquifer reservoirs.

Alternatively, the force of swelling is the negative component of the model.

This short review will discuss the current scenario of understanding of CO₂ trapping mechanisms, structural trapping mechanisms, kinetics of CO₂ dissolution and future challenges and developments of carbon capture and storage projects.

The present study will deliver a complete understanding of microscopic phenomena during CO₂ trapping into aquifer reservoirs apart from the existing mechanisms.

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