Pendulum assembly is a kind of BHA for hole straightening, which is applied widely in drilling practice.
钟摆钻具是一种常用的纠斜钻具组合，在钻井中应用极为广泛。
Pendulum assembly is a kind of BHA for hole straightening, which is applied widely in drilling practice.
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。
A mechanical model for the offset-axes pendulum drill assembly (OAPDA) was established according to the continuous beam theory and the d.
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。
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.
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%。
It has an extra contact assembly on the right, so the dash pendulum can be locked and the GN907 will operate as a traditional semi-automatic bug.
它的右侧有一个特别的接触模块，因此“划”的钟摆可以被锁定，使GN907变成一款传统的半自动BUG键。
Numerical simulation shows that the new method is more effective for the drill-string assembly unsuitable to be simplified as a torsion pendulum.
数值模拟结果表明，对不适于简化为扭转摆的钻柱系统，采用基于钻柱扭转杆模型的新方法进行设计可以取得相对较好的减振效果。
Oblong shape assembly mark:The shape of the most universal cabaret banquet hall, the table bit pendulum puts degree of freedom higher -, the main time of the guest distinguish non constat.
长方形会场：最普遍的酒店宴会厅的形状，桌位摆放自由度吧高，宾客的主次分别不明显。 。
Oblong shape assembly mark:The shape of the most universal cabaret banquet hall, the table bit pendulum puts degree of freedom higher -, the main time of the guest distinguish non constat.
长方形会场：最普遍的酒店宴会厅的形状，桌位摆放自由度吧高，宾客的主次分别不明显。 。
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