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讨论了延长连续油管（ＣＴ）工作管柱寿命的方法。集中考虑了六个方面的问题：连续油管的疲劳控制、连续油管管柱设计选择、数据采集系统、连续油管腐蚀防护、连续油管机械损伤防护以及设备的选择。通过几个典型例证，说明了连续油管集中控制方案（ＴＭＰ）能明显降低连续油管的疲劳程度。连续油管的疲劳速度降低３００％。而且，研究人员、培训人员和现场操作人员共同努力有助于防止连续油管三种主要疲劳断裂──循环断裂、内部腐蚀和外部腐蚀的发生。文中用以疲劳算法为基础的电脑程序来跟踪连续油管使用过程中所有管柱的疲劳。此外，还讨论了连续油管在高－低压力环境下作业时对管柱设计选择的影响。最后讨论了选择适当的设备和对设备进行适当维护，将连续油管循环疲劳降到最小及防止连续油管产生机械损伤的方法。
Discusses ways to extend the life of coiled tubing in coiled tubing (CT). Focus on the six aspects of the problem: coiled tubing fatigue control, coiled tubing string design selection, data acquisition system, coiled tubing corrosion protection, coiled tubing mechanical damage protection and equipment selection. Through several typical examples, it is demonstrated that the coiled tubing centralized control scheme (TMP) can significantly reduce the coiled tubing fatigue. Coiled tubing reduces fatigue by 300%. Moreover, working together with researchers, trainers and field operators helps prevent the three main types of coiled tubing failure - cyclic cracking, internal corrosion and external corrosion. The article uses a fatigue-algorithm-based computer program to track the fatigue of all the tubing strings used in the coiled tubing. In addition, the effect of coiled tubing on column design choices is discussed when working in high-low pressure environments. Finally, the methods of selecting the proper equipment and properly maintaining the equipment, minimizing the cyclic fatigue of the coiled tubing and preventing the coiled tubing from mechanical damage are discussed.