Its characteristics include that the counterforce is proportional with the horizontal distance of a vertical line where BHA is offset from an open hole.
新的纠斜控制方法以减小测量点与开孔点垂线间的水平距离为目标,可以提高垂钻轨迹的垂直精度。
3
The counter-force apparatus system which provides the counterforce for the model is consists of model counter-force rack, flange plates and counter-force transferring plates.