Rotary Steerable Drilling Tools
A rotary steerable drilling and tool technology, applied in directional drilling and other directions, can solve the problems that the tool face is not easy to stabilize, support pressure, and cannot be provided by the turntable.
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[0009] Depend on figure 1 It can be seen that the present invention is composed of non-rotating overcoat 3, rotating mandrel, guide, and orientation control mechanism. Non-rotating overcoat 3 is a hollow tubular body, and the upper and lower ends are diameter-reducing sections. A guide and a fixed centralizer 20 are installed on the wall from top to bottom; the rotating mandrel is composed of an upper rotating mandrel 26 and a lower rotating mandrel 31, and there is a Sealing ring 1 and ball 2, the lower part of the upper rotating mandrel 26 has an inner card slot 29, and the outer part is set with a ring-shaped pusher 23 through the ball 9, the lower part of the ring-shaped pusher 23 is a tapered pusher 12, and the upper part is a stopper 10. The conical push block 12 is suspended on the lower part of the stopper 10 through the spring 11; the middle part of the lower rotating mandrel 31 is the inserting rod 30 corresponding to the slot 29 in the lower part of the upper rotati...
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