Setting tool with retractable torque fingers

Details Setting tool with retractable torque fingers Setting tool with retractable torque fingers

E - Fixed Constructions

21

B

166/59

E21B 23/00 (2006.01)

Patent

CA 1237662

ABSTRACT OF THE DISCLOSURE A setting tool is shown of the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore. The setting tool is designed to set a liner hanger using right hand as well as left hand rotation and is released from the setting sleeve using right hand rotation. A plurality of retractable, spring loaded torque fingers carried on a torque collar are used to transmit torque to the setting sleeve but are moved into a retracted position after the setting sleeve is released to avoid damage to the torque fingers. A plurality of splines and a splined ring within the torque collar are used to latch the tool in the running-in position to perform well bore operations, such as hanging a liner. The splines and splined ring have specially mating surfaces which form a key arrangement to facilitate reinsertion of the splines within the splined ring for subsequent operations as the tool is manipulated between the running-in and weight set down positions.

472958

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