The intelligent drill pipe samples whose internal pipes expanded successfully have the excellent insulation.
经内管膨胀贴合成功的智能钻杆样件的绝缘性能良好。
As the core technology of smart drilling, intelligent drill pipe has long been a technical problem which can not be solved by domestic research staff.
智能钻杆作为智能钻井的核心技术，一直是国内研究人员久攻不下的技术难题。
Therefore, this article studied the reliability problems involved in the process of design and manufacture of intelligent drill pipe from both the theoretical and experimental aspects.
因此，本文针对智能钻杆设计和加工中所涉及的可靠性问题，分别从理论和实验两个方面入手进行了研究。
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