Abstract:
钻柱是钻井工程中必不可少的重要工具。本文基于现代动力学理论,首次得到了斜井段钻柱发生正弦屈曲的半波数、半波长度及临界钻压表达式。将斜直井段钻柱在波动钻压激励下的振动转化成一个参数激励系统,得到了描述该系统的Mathieu方程,通过级数解法,分别得到了无阻尼和线性阻尼情况下的动力分岔值曲线及其包围的动力不稳定区。
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Year: 2009
Language: Chinese
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WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 6
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