Rotary jet flow PDC drill bit
A drill bit and jet technology, applied in drill bits, drill pipes, drill pipes, etc., can solve the problems of secondary wear and reduced work efficiency, and achieve the effects of increasing the ROP, prolonging the service life, and reducing the possibility of
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[0024] The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.
[0025] Such as Figure 1-2 As shown, a rotary jet PDC bit of the present invention includes a bit body 1, a blade 2, PDC cutting teeth 3, a nozzle, a runner, a chip flute 6 and a reverse nozzle joint 7, and the blade 2 is arranged on the bit body 1. In the crown, the PDC cutting teeth 3 are arranged on the blade 2. The runner 5 penetrates the bit body 1 and the reverse nozzle joint 7. The bit body 1 drives the blade 2 to rotate, the PDC cutting teeth 3 cut the rock formation, and then cooperate with the passing flow. The high-pressure jet of the tunnel scoured the remaining cuttings and finally completed the entire drilling operation.
[0026] The structure and principle of the present invention are described in detail below.
[0027] Such as Figure 1-4 As shown, the present invention provides a rotary jet PDC drill bit (PDC or Polycrystalline...
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