| LG351井油管粘扣原因分析及预防 |
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| 引用本文： | 吕拴录,杨成新,吴富强,张锋,秦世勇,姜学海,张浩.LG351井油管粘扣原因分析及预防[J].钢管,2011,40(Z1):33-36. |
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| 作者姓名： | 吕拴录 杨成新 吴富强 张锋 秦世勇 姜学海 张浩 |
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| 作者单位： | 1. 中国石油大学机械与储运工程学院,北京102249;中国石油塔里木油田公司,新疆库尔勒841000
2. 中国石油塔里木油田公司,新疆库尔勒,841000 |
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| 摘 要： | 对LG351井油管下井全过程进行了调查研究.通过调查研究和实际应用认为,油管引扣不到位,则容易发生粘扣和错扣；上扣控制方法不当,上扣扭矩过大,则容易发生粘扣.要保证油管下井质量,应严格执行油管使用及维护作业规程,在螺纹接头保护、清洗、检查、修理、螺纹脂、对扣、引扣、上扣速度、上扣扭矩、上扣控制方法等方面严格把关.
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| 关 键 词： | 油管 特扣 错扣 原因分析 预防措施 |
Cause Analysis on and Prevention of Thread Galling of Tubing Running in Well LG351 |
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| Lv Shuanlu
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Yang Chengxin
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Wu Fuqiang
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Zhang Feng
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Qin shiyong
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Jiang Xuehai
,
Zhang Hao.Cause Analysis on and Prevention of Thread Galling of Tubing Running in Well LG351[J].Steel Pipe,2011,40(Z1):33-36. |
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| Authors: | Lv Shuanlu Yang Chengxin Wu Fuqiang Zhang Feng Qin shiyong Jiang Xuehai Zhang Hao |
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| Affiliation: | 2 ( 1. College of Mechanical and Transportation Engineering,China University of Petroleum, Beijing 102249,China;2. CNPC Tarim Oil Field Company,Korla 841000,China ) |
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| Abstract: | The investigation and study on the overall process of tubing lowering in Well LG351 are carried out. The results of the said investigation and study, and also relevant field application show that thread galling or wrong make-up easily occurs, if the guiding screw operation fails to make the threads in place, and that thread galling also occurs with high probability in case of improper make-up control method or over torque. In order to ensure successful tubing lowering operation,relevant operation and maintenance procedures for tubing running shall be strictly followed with focus on such aspects as protecting,cleaning,inspecting,and repairing of the thread connection,compound applying,thread stabbing,guiding screw, making-up,and make-up speed and torque control as well as make-up control method. |
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| Keywords: | Tubing Thread galling Wrong make-up Cause analysis Preventative action |
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