基于AMESim的连续管注入头夹持力动态特性研究  

AMESim-based Study on Dynamic Behavior of Gripping Force of Coiled Tubing Injector Head

作　　者：马卫国[1] 卢雷[1] 王刚 李金洪 梅雪松[1] 杨毅成[1] Ma Weiguo;Lu Lei;Wang Gang;Li Jinhong;Mei Xuesong;Yang Yicheng(School of Mechanical Engineering,Yangtze University;Oil and Gas Engineering Service Center of Zhongyuan Oilfield)

机构地区：[1]长江大学机械工程学院 [2]中原油田采油气工程服务中心

出　　处：《石油机械》2018年第5期65-70,共6页China Petroleum Machinery

基　　金：国家科技重大专项"连续管装备与应用技术"(2011ZX05036-006)

摘　　要：连续管油气井井筒作业中存在较多问题,包括连续管溜管、打滑和咬伤等,严重影响作业的安全性和连续管寿命。从夹持系统液压缸压力振动入手,研究了连续管振动对连续管注入头夹持系统夹持力产生的影响,求解了夹持力的动态特性。根据夹持系统结构和工作原理,建立了夹持系统力学模型和简化的两自由度物理系统,运用AMESim软件仿真方法得到了影响夹持力动态特性的主要因素及其影响规律。研究结果表明:夹持力振动与液压缸压力振动具有正相关性;液压缸压力振动频率较大时,夹持力振动振幅随频率增大而减小;夹持系统等效刚度对夹持力的振动幅度影响较大。仿真分析结果可用于指导连续管夹持系统结构设计和连续管作业操作。Many problems occur in the coiled tubing operation in oil and gas wells,including coiled tubing slipping,slippage and tubing bite,which seriously threaten the safety of the operation and the life of the coiled tubing. From the aspect of the pressure oscillation of the hydraulic cylinder on the gripping system,the influence of the coiled tubing vibration on the gripping force of the injector head gripping system is studied. The dynamic behavior of the gripping force is attained. According to the structure and working principle of the gripping system,the mechanical model of the gripping system and the simplified two-degree-of-freedom physical system are established.The main factors influencing the dynamic behavior of the gripping force and the influence rules are obtained using the AMESim software simulation method. The study shows that the gripping force vibration has a positive correlation with the pressure oscillation of hydraulic cylinder. When the pressure vibration frequency of hydraulic cylinder is high,the vibration amplitude of gripping force decreases with the increase of frequency. The equivalent stiffness of gripping system has a great influence on the gripping force vibration amplitude. The results of the simulation analysis could provide references for the structural design of the coiled tubing gripping system and coiled tubing operation.

关 键 词：连续管 注入头 夹持力 液压振动 动态特性 

分 类 号：TE933.8[石油与天然气工程—石油机械设备]