| J值在API圆螺纹连接中含义初探 |
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| 引用本文： | 吕拴录,宋治.J值在API圆螺纹连接中含义初探[J].石油钻采工艺,1995,17(5):53-59. |
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| 作者姓名： | 吕拴录 宋治 |
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| 作者单位： | 1.中国石油天然气总公司石油管材研究所 |
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| 摘 要： | 通过对API73.0×5.51mmEUN80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。
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| 关 键 词： | J值 API螺纹 螺纹连接 扭矩 最优化 |
| 收稿时间： | 2019-05-19 |
PRELIMINARY DISCUSSION ON IMPLICATION OF J-VALUE IN API ROUND THREADED CONNECTION |
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| Lu Shuanlu,Song Zhi.PRELIMINARY DISCUSSION ON IMPLICATION OF J-VALUE IN API ROUND THREADED CONNECTION[J].Oil Drilling & Production Technology,1995,17(5):53-59. |
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| Authors: | Lu Shuanlu Song Zhi |
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| Abstract: | 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 \API73.0×5.51mm 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. |
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| Keywords: | J-value API thread threaded connection torque optimization |
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