A brief review of mechanisms for carbon dioxide sequestration into aquifer reservoirs. (2017)

• Record Type: Journal Article
• Authors: Belhaj, Hadi; Bera, Achinta
• Is Part Of: International journal of petroleum engineering. Volume 3:Number 1(2018)
• Page Start: 49
• Page End: 66
• Publication Date: 2017
• Subjects: CO2 capture and storage -- CO2 trapping mechanisms -- deep saline aquifer -- drainage -- imbibition -- swelling; Petroleum engineering -- Periodicals; 622.33805
• Languages: English
• ISSNs: 1754-8888

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.