天然气管线弯头开裂原因分析  

Crack Failure Analysis for the Elbow of a Gas Pipeline

作　　者：张亚明[1] 姜胜利[1] 

机构地区：[1]中国科学院金属研究所,辽宁沈阳110016

出　　处：《中国材料科技与设备》2015年第4期39-40,44,共3页Chinese Materials Science Technology & Equipment

摘　　要：某油田的一条输送天然气管线在一个弯头处开裂。通过对该管线弯头和直管等处的多项理化检验分析，确认该管线弯头的开裂原因为硫化氢应力腐蚀和氢致开裂。Crack failure occurred at an elbow of a gas pipeline in an oil field. A serious of physical and chemical analysis on the elbow and the adjacent straight pipe were carried out, confirming that the failure of the elbow was due to hydrogen sulfide stress corrosion cracking and hydrogen induced cracking.

关 键 词：天然气管线 弯头 L245NCS钢 氢致开裂 

分 类 号：TE832[石油与天然气工程—油气储运工程]