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仿射坐标系在钻柱动力学中的应用

DOI: 10.6052/1000-0879-12-073

Keywords: 钻柱动力学,仿射坐标,三维井眼

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Abstract:

三维井眼中转动钻柱受力分析是钻柱动力学理论研究中的难点,首先要处理三维弯曲井眼中钻柱的初始弯曲,而且在分析过程中要考虑弯曲井眼方位、井斜对钻柱接触力的影响.引入仿射坐标系,建立三维弯曲井眼中转动钻柱力学模型,分析弯曲井眼中转动钻柱变形、接触力及摩阻扭矩,为钻柱动力学理论研究提供一种新的方法.

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