Underground rotational flow solid-liquid separation well drilling speed increasing tool
A liquid separation and tool technology, which is applied in the field of downhole swirling solid-liquid separation drilling speed-increasing tools, achieves the effects of small impact, good stability, and prolonging the life of the drill bit
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[0020]The main structure of the downhole swirling solid-liquid separation drilling speed-up tool in this embodiment includes an upper joint 1, an outer cylinder 2, an overflow pipe suspension seat 3, an overflow pipe 4, a guide vane 5, a cone 6 and a positioning bolt 7. Lower splitter seat 8, lower joint 9, nozzle seat 10 and lateral nozzle 11, upper joint 1 and lower joint 9 are threadedly connected to both ends of tool outer cylinder 2, upper joint 1 is connected to an external drill string, and lower joint 9 Connected to an external drill bit; an inlet flow passage 12 is opened in the middle of the upper joint 1 and an outlet flow passage 19 is opened in the middle of the lower joint 9; the upper joint 1 presses the overflow pipe suspension seat 3 on the boss in the outer cylinder 2; The overflow pipe 4 is fixed to the lower end of the overflow pipe suspension seat 3 by bolts. The outer side of the overflow pipe 4 is provided with an annulus flow channel 14; the ou...
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