运用纵横弯曲连续梁理论和达朗伯原理，建立了偏轴钟摆钻具组合动力学分析模型。
A mechanical model for the offset-axes pendulum drill assembly (OAPDA) was established according to the continuous beam theory and the d.
与邻井常规钟摆钻具组合相比，这种钻具组合的钻压提高50%以上，机械钻速则提高120%。
The bit pressure of the BHA can increase more than 50% and the penetration rate can increase 120% comparing with the adjacent Wells using conventional pendulum drilling assembly.
倒装钟摆钻具组合是一种新型的直井防斜钻具组合，在小井斜角高钻压下表现出了较好的防斜特性。
Pendulum assembly is a kind of BHA for hole straightening, which is applied widely in drilling practice.
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