directional well profile approximation 定向井剖面接近法 Trajectory control for directional well 定向井轨迹控制 Trajectory quality for directional well 定向井井身轨迹质量 ..
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在定向井轨迹控制中，方位控制是个棘手问题。
The control of azimuth is a knotty problem in controlling directional well trace.
复合式滑动导向钻井方式在定向井、水平井井眼轨迹控制中有其独特的优点。
The compounding slide steering drilling mode has its specific advantages in trajectory control of directional well and horizontal well.
所建立的圆弧模型及求解方法可应用于定向井井眼轨迹控制和中靶质量评价等。
The established arc model and its solving method can be applied to directional well trajectory control and target hitting quality evaluation, etc.
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