《石油管工程》2012年第4期目录、摘要 关键词：钻柱；完整性；管理 [gap=335]Key Words：drilling string；integrity；management
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钻杆柱 drill column; drill pipe string; drill string; drill-pipe string; drilling string; drillpipestring; line of rods; string ..
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drilling string stabilizer 钻柱稳定器
maximum drilling string load [油气] 最大钻柱载荷
drilling string working status 钻柱的工作状态
Vibration absorber for drilling string 钻柱减震器
Casing Drilling String 套管钻井管柱
The main factors resulting in the“U-Tube”effect in the DGD are analyzed, and a drilling string value is designed for eliminating“U-Tube”effect.
分析双梯度钻井中“U型管效应”的主要影响因素,设计“U型管效应”抑制工具—钻柱阀。
参考来源 - 新型深水双梯度钻井系统原理、方法及应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Dynamic vibration equation of drilling string is established based on the theory of dynamics.
根据动力学理论建立钻柱动力学振动方程。
The rule of lateral vibration under axial load was studied in theory, the inherent frequency of drilling string was obtained.
从理论上分析了轴向载荷存在的情况下钻柱横向自由振动的规律，获得了钻柱横向振动固有频率。
This paper analyzed the practical situation of drilling string lateral vibration during drilling, established mechanical model.
文章针对钻井工程中钻柱横向振动的实际情况，建立力学模型。
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