理化检验-物理分册2024，Vol.60Issue(4)：68-71,4.DOI:10.11973/lhjy-wl202404017
P110S钢级油管管体断裂原因
Fracture reason of P110S steel grade tubing body
赵映辉 1夏文斌 1周勇 1赵建明1
作者信息
- 1. 衡阳华菱钢管有限公司技术中心,衡阳 421001
- 折叠
摘要
Abstract
Fracture occurred at 8 m below the coupling of P110S steel grade tubing in an oil well.The causes of tubing fracture were analyzed by macroscopic observation,chemical composition analysis,metallographic examination,scanning electron microscopy and energy spectrum analysis,X-ray diffraction analysis and other methods.The results show that the mechanical properties of the tubing were unstable,and the corrosion products on the fracture of the tubing were mainly FeS.The high strength,low service temperature and large mass of the tubing led to the formation of sulfide stress corrosion cracking inside the tubing.关键词
P110S钢级油管/硫化物/应力腐蚀开裂/力学性能/显微组织Key words
P110S steel grade tubing/sulfide/stress corrosion cracking/mechanical property/microstructure分类
矿业与冶金引用本文复制引用
赵映辉,夏文斌,周勇,赵建明..P110S钢级油管管体断裂原因[J].理化检验-物理分册,2024,60(4):68-71,4.
