FIELD: drilling equipment.
SUBSTANCE: invention can be used as part of bottom drill string assemblies when drilling directional, horizontal and multilateral wells using the rotary method. The rotary controlled system contains a drill bit, a central shaft connected to the drill bit, a cage made on top of the central shaft, forming a sealed volume underneath, a hinge element that ensures rotation of the axis of the central shaft relative to the axis of the cage, and at least one pusher installed in a sealed chamber. volume. Moreover, the cage is rigidly fixed on the central shaft from the side of the drill bit, and on the opposite side the cage has a hinge element.
EFFECT: improves the reliability, performance and durability of the system.
6 cl, 5 dwg
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