Coupled effect of CO₂ attack and tensile stress on well cement under CO₂ storage conditions

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• 作者：Tao Gu^a ; ^b ; Xiaoyang Guo^a ; ^{guoxiaoyangswpi@126.com} ; Zaoyuan Li^a ; Xiaowei Cheng^a ; Xiaoxia Fan^a ; Asghar Korayem^b ; Wen Hui Duan^b ; ^{Wenhui.duan@monash.edu}
• 关键词：Oilwell cement ; Integrity ; CO2 corrosion ; Tensile stress ; Coupled effect
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：92-102
• 全文大小：4789 K
• 卷排序：130

文摘

Coupled effect of CO2 attack and tensile stress on well cement under CCS condition is studied. A higher tensile stress will facilitate the generation and propagation of micro-cracks. The tensile stress can accelerate the failure of well cement. The carbonation rate of cement was faster in CO2-saturated brine.