油套管联接过程中，拧紧扭矩是影响油套管联接质量的主要因素之一。
Tightening torque is one of the main factors that affect the connection quality in threaded connections.
本文对V形圆扣套管联接强度失效的主要形式，即套管联接螺纹滑扣(或滑脱)失效的机理进行了分析研究。
The main failure form of V-round-thread casing, that is, the mechanism of thread connection slipping off, is analyzed in this paper.
在下套管作业过程中 ，对套管紧螺纹扭矩的实时监控是提高套管螺纹联接质量的重要方法之一。
Real time monitor of casing thread makeup torque is one of important means to improve the quality of casing threaded connection during the process of casing-runing.
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