Wellbore percussion adapter and tubular connection

Details Wellbore percussion adapter and tubular connection Wellbore percussion adapter and tubular connection

E - Fixed Constructions

21

B

E21B 1/14 (2006.01) E21B 6/02 (2006.01) E21B 17/042 (2006.01)

Patent

CA 2714704

A percussion adapter that is driven to generate a percussive axial motion on a wellbore structure. One percussion adapter includes a drive connection to mechanically convert rotational drive to axially directed percussive motion. Another percussion adapter employs a valve that creates back pressure causing 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.

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