螺杆马达在连续油管钻磨工艺中的故障分析  

Failure analysis of screw motors in coiled tubing(CT)-conveyed drilling and milling

作　　者：雷坤玉 LEI Kunyu(Technical Service Company for Shale Gas Production,Sinopec Oilfield Services Jianghan Corporation,Wuhan,Hubei 430075,China)

机构地区：[1]中石化江汉石油工程有限公司页岩气开采技术服务公司,湖北武汉430075

出　　处：《江汉石油职工大学学报》2025年第2期29-31,34,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：在石油开采中,连续油管钻磨工艺重要性日益凸显,而螺杆马达作为核心部件,其性能对工艺效果影响重大。全面了解其技术特点和基本参数,高度重视其在实际运用中的表现以及故障分析,对于优化连续油管钻磨工艺、提升作业效率和质量具有至关重要的意义。通过研究不同种类螺杆马达的原理、参数,并结合实际案例分析螺杆马达故障原因。研究结果表明花瓣式万向轴因应力集中发生断裂,容易产生疲劳损坏;柔性轴单独受偏心距作用不易产生疲劳破坏。In oil production,the importance of CT-conveyed drillling and milling processes is increasingly evident,with screw motors being critical components whose performance significantly affects outcomes.Understanding their technical characteristics,parameters,and real-world performance,as well as analyzing failures,is essential for optimizing these processes and improving operational efficiency and quality.This study examines the principles and parameters of various screw motor types and analyzes failure causes through case studies,finding that petal-type universal joints fracture due to stress concentration and fatigue,while flexible shafts,affected solely by eccentricity,are less prone to fatigue failure.

关 键 词：螺杆马达 连续油管 万向轴断裂 故障分析 

分 类 号：TE921[石油与天然气工程—石油机械设备]