Microfluidic study of CO2 diffusive leakage through microfractures in saline aquifers for CO2 sequestration

• Published in: Advances in water resources Vol. 200; p. 104960
• Main Authors: Yu, Wei, Lo, Jack H.Y., Adebayo, Abdulrauf R., Rezk, Mohamed Gamal, Al-Yaseri, Ahmed, AlYousef, Zuhair
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2025
• Subjects: advection; aquifers; carbon dioxide; carbon sequestration; CO2 sequestration; Diffusive transport; diffusivity; experimental design; Leakage; Microfluidics; Microfractures; Saline aquifers; salinity; solubility; temperature; water; Leakage; CO2 sequestration; Microfractures; Microfluidics; Diffusive transport; Saline aquifers

•Microfluidic studies on CO2 diffusive leakage through microfractures were conducted.•CO2 depletion in porous media follows a two-stage process.•The transition time (0.1l2/D) defines the timescale for CO2 diffusive leakage.•The steady-state leakage rate is proportional to DC1l. CO2 diffusive leakage...