| 钻杆内螺纹接头摩擦热裂原因探讨 |
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| 引用本文： | 刘永刚,练章华,李齐富,李鹏.钻杆内螺纹接头摩擦热裂原因探讨[J].探矿工程,2012,39(Z1):97-99. |
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| 作者姓名： | 刘永刚 练章华 李齐富 李鹏 |
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| 作者单位： | 中国石油集团石油管工程技术研究院;西南石油大学;渤海能克钻杆公司 |
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| 基金项目： | 国家科技重大专项2011ZX05021-002的部分研究成果 |
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| 摘 要： | 钻杆内螺纹接头摩擦热裂失效事故随着近年来深井、超深井和水平井等复杂工况井的增加而时有发生，已成为钻杆内螺纹接头失效的一种重要形式。本文对钻杆内螺纹接头摩擦热裂纹的宏观失效形式，微观断面特征和材料组织相变特征进行了分析，从钻杆接头受力，钻杆接头材料进行了失效机理研究，并从钻杆使用，材料性能和表面处理等方面提出了预防失效的建议和措施。
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| 关 键 词： | 钻杆接头 摩擦 裂纹 失效 |
| 收稿时间： | 2012/7/31 0:00:00 |
The Discussion on Friction Crack of Tool- Joint Box |
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| LIU Yong-gang,LIAN Zhang-hu,LI Qi-fu and LI Peng.The Discussion on Friction Crack of Tool- Joint Box[J].Exploration Engineering(Drilling & Tunneling),2012,39(Z1):97-99. |
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| Authors: | LIU Yong-gang LIAN Zhang-hu LI Qi-fu and LI Peng |
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| Institution: | Research Institution of Tubular Goods of CNPC;Southwest Petroleum University;BOHAI NKK DRILL PIPE CO.,LTD |
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| Abstract: | The failure incidents of friction crack of tool- joint box occur sometimes with the recent deep, ultra-deep wells and horizontal wells in complex working conditions, and has become an important form of failure of tool-joint box. In this paper, the macro-crack failure modes, micro-cross-section characteristics and the characteristics of phase change organizations of friction crack of tool- joint box are analyzed, and the failure mechanism of friction crack of tool-joint box is discussed by the force on the drill pipe joints, drill pipe joint materials performance , and put forward proposals and measures on how to prevent failure from the using, material properties and surface treatment of tool-joint box. |
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| Keywords: | tool-joint box friction crack failure |
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