热采注汽管线的腐蚀与安全性分析  

ANALYSIS OF CORROSION AND SAFETY FOR STEAM-INJECTING PIPES

作　　者：温建萍[1] 冯庆伟[2] 温涛[2] 卢鑫[2] 

机构地区：[1]南京航空航天大学材料学院,南京210016 [2]胜利石油股份有限公司,东营257000

出　　处：《腐蚀科学与防护技术》2003年第5期304-306,共3页Corrosion Science and Protection Technology

摘　　要：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 =35In this paper,a failure analysis was performed for materials of two section steam-injecting pipes,by means of examinations such as:macro-morphology、wall thickness and diameter、chemical composition、optical micrography、mechanical properties、scanning electron microscope(SEM) and EDS.The results show that the pipes suffered from an oxidation-chlorination corrosion.Residual strength caluculation shows that the wall thickness of the corroded two section steam-injecting pipes is below the requirement for further use according to the following designing criterion:P=17.2 MPa and T=354℃.

关 键 词：热力采油 注汽管线 腐蚀 安全性分析 断口分桥 

分 类 号：TE983[石油与天然气工程—石油机械设备]