摘要
通过对API 73.0×5.51mmEUN80圆螺纹油管接头螺纹参数进行检测,分析了 API螺纹中J值与螺纹各项参数及上扣扭矩的关系。认为在最佳上扣扭矩条件下,J值大小随螺纹参数变化而改变,用控制J值来控制螺纹的上紧程度是不能保证螺纹连接处于最佳状态的。用户以J值判定油、套管螺纹连接松紧程度是否合格是不科学的。
The relation of J - value to other parameters and torque wrench moment of API round threaded connection is analysed based on the detection to thread parameters of \PI 73. 0×5. 51mm EUN80 tubing connection. The conclusion that J-value changes with the change of thread parameters in optimum torque wrench moment. Controlling slack level of threaded connection by controlling J-value cannot ensure threaded connection is in optimum state. Therefore, it is unscientific that for user to judge slack level of threaded connection of tubing or casing by J-value.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1995年第5期53-59,共7页
Oil Drilling & Production Technology
关键词
J值
螺纹连接
扭矩
油管
接头
井下设备
J-value API thread threaded connection torque optimization
