Rolling cone drill bit having cutter elements positioned in...

Details Rolling cone drill bit having cutter elements positioned in... Rolling cone drill bit having cutter elements positioned in...

E - Fixed Constructions

21

B

E21B 10/16 (2006.01) E21B 10/00 (2006.01)

Patent

CA 2569451

A drill bit for drilling through earthen formations and forming a borehole. In an embodiment, the bit comprises a bit body having a bit axis. In addition, the bit comprises a plurality of cone cutters, each of the cone cutters being mounted on the bit body and adapted for rotation about a different cone axis. Further, at least one cone cutter on the bit comprises an array of cutter elements mounted in a band. Still further, the cutter elements in the array are mounted in a plurality of differing radial positions relative to the bit axis.

Trépan pour percer des couches géologiques et former un puits. Dans un mode de réalisation, le trépan comprend un outil de forage possédant un axe. De plus, le trépan a plusieurs molettes, chacune montée sur l'outil de forage et adaptée pour tourner sur un axe conique différent. De plus, au moins une molette du trépan comprend une série d'éléments tranchants montés en bande. Ces éléments tranchants sont montés selon de nombreuses positions radiales différentes par rapport à l'axe du trépan.

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