焊管2024，Vol.47Issue(4)：39-44,6.DOI:10.19291/j.cnki.1001-3938.2024.04.006
120 ksi高强度小油管应力腐蚀性能研究
120 ksi High Strength Small Tubing Stress Corrosion Performance
摘要
Abstract
The physical and chemical properties,hydrogen-induced cracking,stress corrosion of the base material and weld of 120 ksi steel grade small tubing developed by high strength coil and high frequency welding(HFW)process were studied.The physical and chemical properties of 120 ksi small tubing samples are well controlled,but there are a lot of cracks in hydrogen induced cracking tests,and the crack sensitivity rate,crack length rate and crack thickness rate are high.The stress corrosion resistance of the pipe is poor,and the sample pipe has a lot of cracks or fractures under 66%σs stress loading.It indicates that the ordinary 120 ksi strength level of tubing can not meet the requirements of hydrogen sulfide corrosion resistance.关键词
高强度/油管/氢致开裂/应力腐蚀Key words
high strength/tubing/hydrogen-induced cracking/stress corrosion分类
矿业与冶金引用本文复制引用
李鸿斌,王涛,张锦刚,余晗,苑清英,王晓波..120 ksi高强度小油管应力腐蚀性能研究[J].焊管,2024,47(4):39-44,6.基金项目
中国石油天然气集团有限公司科学研究与技术开发项目"致密气及页岩气井连续管带压完井与采气一体化技术现场试验"(项目编号2022ZS26). （项目编号2022ZS26）
