常规的、不可变径的钻柱稳定器现在依然是井斜控制井底钻具组合中不可缺少的组件。
The ordinary non-adjustable stabilizer is still now an indispensable element of DHA(Down-Hole Assembly) for controlling well inclination.
本文着重论述了井下闭 环 可变径稳定器的结构、工作原理及其控制井眼轨迹的方法。
The structure and principle of operation of the stabilizer, and method for controlling borehole trajectory with the close_loop adjustable stabilizer at downhole are described in detail.
钻成大位移井必须依靠井眼轨迹控制技术，研制的井下闭环可变径稳定器是实现该项技术的关键。
It is necessary to depend on the control technology of borehole trajectory to drill the extended-reach well successfully. A closed-loop adjustable stabilizer at downhole is developed.
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