A Jet Type Torsional Drag Reducing Oscillator
An oscillator and jet-type technology, applied in the direction of vibration drilling, etc., can solve the problems of short service life of PDC bit and low drilling efficiency, and achieve the effect of improving drilling efficiency, increasing drilling speed and reducing slipping effect
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.
[0019] Such as figure 1 as shown, figure 1 It is a jet-type torsional drag-reducing oscillator provided by the embodiment of the present invention. see figure 1 , figure 2 , image 3 , Figure 4 , the jet-type torsional drag-reducing oscillator includes an upper joint, an outer cylinder, an upper end cover, a bistable jet element, an alternating pressure flow channel, a torque cylinder, a torque piston, a bearing, a fast card, and a drill sleeve; the outer cylinder The upper end cover, the bistable jet element, the alternating pressure flow channel, the torque cylinder, the torque piston and the bearing are arranged in sequence in the interior; the upper end of t...
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