Wellbore drilling accelerator and tubular connection

Details Wellbore drilling accelerator and tubular connection Wellbore drilling accelerator and tubular connection

E - Fixed Constructions

21

B

E21B 17/042 (2006.01) E21B 6/00 (2006.01) E21B 17/07 (2006.01)

Patent

CA 2717484

A drilling accelerator that is driven from a rotational drive to generate a percussive axial motion on a drill bit. The drilling accelerator includes a drive connection to mechanically convert rotational drive to axially directed percussive motion. A wellbore tubular connection is also disclosed that transitions torque to resist back off when left hand or right hand torque is applied.

L'invention porte sur un accélérateur de forage entraîné par un entraînement rotatif et produisant un mouvement axial de percussion sur le trépan. Ledit accélérateur comprend une connexion qui convertit mécaniquement le mouvement rotatif en mouvement axial de percussion dirigé. L'invention porte également sur une connexion tubulaire de puits qui modifie les couples pour résister au dévissage lors de l'application d'un couple droit ou d'un couple gauche.

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