US 12,031,388 B1
Alignment sub-system with running tool and knuckle joint
Saeed M. Gahtani, Dhahran (SA); and Mohammed K. Muqri, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Dec. 29, 2022, as Appl. No. 18/091,225.
Int. Cl. E21B 17/05 (2006.01); E21B 33/04 (2006.01); E21B 19/06 (2006.01)
CPC E21B 17/05 (2013.01) [E21B 33/04 (2013.01); E21B 19/06 (2013.01)] 31 Claims
OG exemplary drawing
 
1. An oil rig system comprising:
a rotary table aligned with a wellhead opening, the rotary table centered on a first axis;
an elevator; and
an alignment subsystem comprising:
a running tool having a first end and a second end, the running tool configured to attach to a packoff body; and
a knuckle joint attached to the first end of the running tool and attached to the elevator, the knuckle joint configured to angularly deflect.