| 径向水平井转向器内柔性管力学模型研究 |
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| 引用本文： | 郭瑞昌,李根生,刘明娟,黄中伟. 径向水平井转向器内柔性管力学模型研究[J]. 石油机械, 2010, 38(3) |
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| 作者姓名： | 郭瑞昌 李根生 刘明娟 黄中伟 |
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| 作者单位： | 1. 中国石油大学(北京)油气资源与探测国家重点实验室
2. 中海油田服务股份有限公司油田生产事业部 |
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| 基金项目： | 国家863高技术研究计划项目“水力喷射侧钻径向微小水平井眼技术研究”(2007AA09Z315); 国家重大专项“煤层气水平井、多分支水平井钻井、录井和测井技术”(2008ZX05000-036-002) |
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| 摘 要： | 准确预测柔性管在转向器内的受力状况是实现超短半径顺利转向的重要保障,也是转向器轨道设计及施工工艺参数设计的重要依据。在刚杆模型的基础上,考虑了管内流体作用力及柔性管与转向器轨道粘卡力等因素,建立了转向器内柔性管的受力分析模型。同时也考虑了轨道偏差对摩阻系数的影响,对摩阻系数进行了修正。模型采用有限差分方法进行计算,并编制了计算程序。模型计算值与室内试验测量值有一定误差,但误差值仅为4.5%,计算精度在允许的范围之内。建立的模型可以用于预测转向器内柔性管的轴向力。
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| 关 键 词： | 径向水平井 转向器 柔性管 摩阻系数 |
Mechanical model for analyzing force conditions of flexible pipe in the whipstock of radial drilling system |
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| Guo Ruichang,Li Gensheng,Liu Mingjuan,et al.. Mechanical model for analyzing force conditions of flexible pipe in the whipstock of radial drilling system[J]. China Petroleum Machinery, 2010, 38(3) |
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| Authors: | Guo Ruichang Li Gensheng Liu Mingjuan et al. |
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| Affiliation: | Guo Ruichang(State Key Laboratory of Petroleum Resource , Prospecting,China University of Petroleum,Beijing),Li Gensheng,Liu Mingjuan,et al. |
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| Abstract: | An exact prediction of the force conditions of the flexible pipe in the whipstock is an important guarantee for achievement of the smooth diversion of ultra-short radius as well as an important basis for the design of the whipstock's track and operation technological parameters.On the basis of the rigid-rod model and considering some factors such as the tubular fluid acting force and the viscous sticking force between the flexible tube and the steering track,a force analysis model of the flexible pipe in th... |
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| Keywords: | radial horizontal well whipstock flexible pipe friction coefficient |
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