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Working principle of tricone bit

Working principle of tricone bit

  • Categories:Company news
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  • Time of issue:2021-06-21
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(Summary description)Under the effect of the weight on bit and the rotation of the drill string, the teeth are crushed and eat into the rock, and at the same time there is a certain

Working principle of tricone bit

(Summary description)Under the effect of the weight on bit and the rotation of the drill string, the teeth are crushed and eat into the rock, and at the same time there is a certain

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2021-06-21
  • Views:0
Information

Under the effect of the weight on bit and the rotation of the drill string, the teeth are crushed and eat into the rock, and at the same time there is a certain amount of sliding and shearing of the rock. Roll on it at the bottom, the top teeth will, in turn, the impact and pressure into the formation, the effect will be able to make bottom hole rock crushing part, at the same time, relying on its sliding makes teeth have weakened the effect of the shear between the rocks of the rest of the other, in bottom hole rock crushing comprehensively, borehole is able to extend.

Rock crushing by tricone bit

Main ways -- Impact and crushing:

The impact force and static pressure of the longitudinal oscillation all lead to the impact and crushing effect of the teeth on the land, forming the volume crushing pit.

Auxiliary method -- sliding and shear action:

The radial and tangential movement of the teeth creates a shear effect downhole, shattering the intertooth rock.

Erosion effect of jet:

Through the nozzle spewed out the rapid jet impact effect on the rock downhole, to assist the fragmentation of rock.

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