X65级双层海管外管全自动焊工艺研究  

Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline

作　　者：邓丽[1] 刘永贞[1] 李子轩 孙有辉[1] 郭连京 秦贞伟 DENG Li;LIU Yongzhen;LI Zixuan;SUN Youhui;GUO Lianjing;QIN Zhenwei(China Offshore Oil Engineering Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]海洋石油工程股份有限公司,天津300452

出　　处：《金属加工（热加工）》2024年第5期58-60,66,共4页MW Metal Forming

摘　　要：基于STT封底和全自动FCAW-G填充盖面焊接,开发了一种适用于双层海管外管全自动焊工艺,通过宏观形貌观察、力学性能测试等手段验证自动焊工艺下的海管焊接接头的可靠性,满足DNV OS F101:2017《海底管线系统》标准要求,可应用于X65碳素钢海管外管的焊接施工。According to the STT root and FCAW-G filling&capping welding,an automatic welding technology has been developed.The mechanical test results meet the DNV OS F101:2017《Submarine Pipeline System》requirements.Which can be guided as the welding of X65 carbon steel of casing pipe for pipe-in-pipe pipeline laying.

关 键 词：X65 海底管线 双层海管外管 全自动焊接 焊接工艺 

分 类 号：TE973.92[石油与天然气工程—石油机械设备]