Patent ID: 7331395
Filing Date: 2008-02-19
Classification: E21B,Y10S,Y10T

Abstract:
1. A make-up tool for making up a coupling between two riser joints, the coupling having a cam ring that moves axially to move a locking element radially between locked and unlocked positions, the tool comprising: a riser deploying floor having an opening through which the riser joints may pass; a retractable spider mounted to the riser deploying floor for supporting one of the riser joints in the opening; at least one make-up unit supported on the riser deploying floor at the opening, comprising: an engaging member; a positioning device for moving the engaging member inward relative to the opening from a retracted position to an engaged position in engagement with the ring of the coupling; and an actuating device for moving the engaging member to cause the cam ring of the coupling to move axially between the unlocked and the locked positions.