ANALYSIS OF CORROSION AND SAFETY FOR STEAM-INJECTING PIPES
热采注汽管线的腐蚀与安全性分析
WEN Jian-ping,
FENG Qing-wei,
WEN Tao,
LU Xin College of Material Science,
Engineering,
Nanjing University of Aeronautics,
Astronautics,
Nanjing,
China,
Shengli Petroleum CoLtd,
Dongying,
China,
温建萍,
冯庆伟,
温涛
Keywords: steam-injecting pipe,oxidation-chlorination corrosion,failure analysis
热力采油,注汽管线,腐蚀,安全性分析,断口分桥
Abstract:
对两段注汽管材料进行了宏观检察、化学成分、壁厚与管径测量、光学金相组织、常温机械性能、断口扫描电镜、能谱元素等试验分析．结果表明，注汽管材料的局部腐蚀主要是氧化-氯化腐蚀．强度校核表明，两段注汽管目前的壁厚已不能满足内压P=17．2MPa、温度T=354℃的使用条件．
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