二氧化碳驱油环境中典型管柱材料的腐蚀行为与特征
Corrosion Behavior and Characterization of Typical Well Pipes in CO2 Flooding Environment
摘 要
采用高温高压反应釜模拟CO2驱油环境对典型管柱材料N80, P110和3Cr进行了腐蚀行为的研究。计算了各材质的腐蚀速率及曼尼希碱缓蚀效率, 分析了腐蚀产物膜的表面特征及化学成分。结果表明, 三种材质的腐蚀速率均随CO2分压增大而增大, 耐腐蚀性能关系满足P110>3Cr>N80, 曼尼希碱的缓蚀效果较好, 主要腐蚀产物为FeCO3和CaCO3。
曼尼希碱
腐蚀产物膜
XRD
CO2 corrosion
mannich base
corrosion product film
XRD
Abstract
Corrosion behaviors of typical well pipes (N80, P110 and 3Cr) in CO2 flooding environment were investigated using high-pressure autoclave. The corrosion rates of well pipes and the inhibition efficiencies of mannich base were calculated. In addition, surface characteristics and chemical composition of corrosion product films were analyzed. The results indicated that the corrosion rates of the experimental samples increased with increasing CO2 partial pressure, the anti-corrosion ability was in the order of P110>3Cr>N80, the inhibition performance of mannich base was good, and the main corrosion products on sample surfaces were FeCO3 and CaCO3.
中图分类号 TG174
所属栏目 试验研究
基金项目 陕西延长石油(集团)有限责任公司项目(ycsy2010-ky-A-40)
收稿日期 2012/6/12
修改稿日期
网络出版日期
作者单位点击查看
备注王成达, 工程师, 硕士,
引用该论文: WANG Cheng-da,YIN Zhi-fu,LI Jian-dong,LIU Li,LIU Jie. Corrosion Behavior and Characterization of Typical Well Pipes in CO2 Flooding Environment[J]. Corrosion & Protection, 2013, 34(4): 307
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