The technology may control the direction of trajectory of a hole to make it to fit the different requirement of underground engineering projects.
该技术经人为控制钻孔轨迹的走向，使钻孔符合地下工程不同的要求。
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.
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。
By using the algorithm for generating control commands, a downhole tool manipulated on the surface was designed to meet the requirements of the well trajectory control technology.
根据控制原理，设计了一套从地面控制井下的工具，以实现轨迹控制的指令算法。
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