摘要
通过对某油田集油干线弯管刺漏部位的化学材质分析、微观形貌观察和残余应力分析,结果表明:该管段材质的金相组织、硬度和强度不满足相应标准要求,导致管材的脆性增加,致使在缺陷位置发生裂纹起源,在局部拉伸应力、疲劳载荷及残余应力影响下,管段在裂纹处快速撕裂。
The chemical composition of puncture site of the elbow of the main oil gathering line in an oil field was analyzed,its micromorphology was observed,and its residual stress was analyzed.The results showed that the metallographic structure,hardness and strength of the pipe segment materials did not meet the requirements of the corresponding standards,resulting in the increase of the brittleness of the pipe,causing the crack origin at the defect location.Under the influence of local tensile stress,fatigue load and residual stress,the pipe segment rapid tore at crack.
作者
许艳艳
葛鹏莉
高多龙
肖雯雯
王晶
姚子敏
XU Yan-yan;GE Peng-li;GAO Duo-long;XIAO Wen-wen;WANG Jing;YAO Zi-min(Petroleum Engineering Technology Research Institute of Sinopec Northwest Oilfield Company,Xinjiang Urumqi 83001,China;Anke Engineering Technology Research Institute(Beijing)Co.,Ltd,Beijing 100083,China)
出处
《当代化工》
CAS
2020年第2期497-500,共4页
Contemporary Chemical Industry
基金
国家科技重大专项课题“大型油气田及煤层气开发”,项目号:2015E-400801.
关键词
集油干线
开裂
材质缺陷
应力
oil gathering main line
crack
material defect
stress
