液压扭矩大钳转矩及管长检测装置

Development of Measuring Device for Torque and Pipe Length of Hydraulic Torque Tongs

摘要: 针对国内油田在下油管生产作业时液压扭矩大钳的旋扣工作主要依靠人工控制旋扣状态的问题和在10 m左右长距离下直接测量油管长度不太方便的问题，提出应用液压扭矩大钳转矩及管长检测技术，完成了油管扭矩监测系统和油管管长检测装置的研制。结果表明：油管扭矩监测系统可以很直观分析旋扣扭矩质量，有效地监测旋合转矩，并对下管作业过程进行管理，对出现的问题及时进行分析、解决；油管管长检测装置，实现了对每根管长的测量、记录。其创新点：建立了扭矩–圈数模型，实现了油管扭矩的精确测量；运用传感器技术，实现了对油管长度的精确测量。该技术可对下管作业过程进行管理，并可杜绝套管因出厂时质量问题带来的工程事故隐患。

Abstract: In order to solve the problem that the buckling of hydraulic torque tongs mainly depends on manual control of the buckling state and the problem that it is not convenient to measure the length of tubing directly at a long distance of about 10 m in domestic oil field, the torque monitoring system and tubing length measuring device of hydraulic torque tongs were developed by applying the torque and pipe length measuring technology. The results show that the tubing torque monitoring system can intuitively analyze the quality of buckling torque, effectively monitor the buckling torque, and manage the running process of the pipe, and timely analyze and solve the problems. The pipe length detection device realizes the measurement and record of each pipe length. The innovation points are: the torque-turn number model is established to realize the ac-curate measurement of tubing torque. The accurate measurement of tubing length is realized by using sensor technology. This technology can manage the operation process of pipe running and eliminate engineering accidents caused by the quality problems of casing before delivery.