Study on carbonation corrosion mechanism and hydration of phosphoaluminate cement for CCUS wells

• Published in: Geoenergy Science and Engineering Vol. 251; p. 213880
• Main Authors: Yuan, Bin, Zhang, Xingyang, Yang, Shuo, Xu, Bihua, Zheng, Zehao
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2025
• Subjects: CaCO3; Carbonation corrosion; Hydration; Hydroxyapatite; PAC; Hydroxyapatite; PAC; Carbonation corrosion; Hydration; CaCO3

Phosphoaluminate cement (PAC) known for its superior corrosion resistance and mechanical properties, emerges as a promising material for cementing in Carbon capture utilization and storage (CCUS) wells. Therefore, this paper simulated the conditions of 90 °C, 8 MPa CO2 partial pressure and 20 MPa fo...