High torque actuated tubing hanger orientation
AssigneeFMC Kongsberg Subsea AS
InventorsThomas Doran, Graham Ford, Alexey Voronezhev, Marcel Rozek, Frank Wergeland
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Abstract
Systems, methods, and devices for blowout preventer independent alignment and installation of a tubing hanger within a subsea well system. A tubing hanger orientation assembly may be included with a rotary actuator that provides high torque adjustment and fine alignment of the tubing hanger with respect to other subsea equipment. At least one sensor may be included to measure and confirm an orientation of the tubing hanger for proper alignment and connection to a subsea wellhead.
Claims20
A tubing hanger orientation assembly for coupling a tubing hanger assembly to a wellhead, the tubing hanger orientation assembly comprising:
- a tubing hanger orientation mandrel operable to be placed within an internal bore of a blowout preventer (BOP) associated with the wellhead;
- a rotary actuator operable to drive rotation of the tubing hanger orientation mandrel with respect to the BOP, the rotary actuator comprising a two stage piston assembly,
- wherein the two stage piston assembly comprises:
- a plurality of first stage pistons;
- a first stage plate structure coupled to the plurality of first stage pistons;
- a plurality of second stage pistons;
- and
- a second stage plate structure coupled to the plurality of second stage pistons;
- a reaction point for rotation of the tubing hanger orientation mandrel with respect to the BOP;
- and
- at least one sensor operable to measure an orientation of the tubing hanger assembly.
A tubing hanger orientation assembly for coupling a tubing hanger assembly to a wellhead, the tubing hanger orientation assembly comprising:
- a tubing hanger orientation mandrel operable to be placed within an internal bore of a blowout preventer (BOP) associated with the wellhead;
- a rotary actuator operable to drive rotation of the tubing hanger orientation mandrel with respect to the BOP, the rotary actuator comprising a two stage piston assembly comprising:
- a plurality of first stage pistons;
- a first stage plate structure coupled to the plurality of first stage pistons;
- a plurality of second stage pistons;
- and
- a second stage plate structure coupled to the plurality of second stage pistons;
- a brake operable to interface with a portion of the BOP such that a reaction point is provided for rotation of the tubing hanger orientation mandrel with respect to the BOP;
- and
- at least one gyroscopic sensor operable to measure an orientation of the tubing hanger assembly.
A tubing hanger orientation assembly for coupling a tubing hanger assembly to a wellhead, the tubing hanger orientation assembly comprising:
- a tubing hanger orientation mandrel operable to be placed within an internal bore of a blowout preventer (BOP) associated with the wellhead;
- a rotary actuator operable to drive rotation of the tubing hanger orientation mandrel with respect to the BOP, the rotary actuator comprising a two stage piston assembly, wherein the two stage piston assembly comprises:
- a plurality of first stage pistons;
- a first stage plate structure coupled to the plurality of first stage pistons;
- a plurality of second stage pistons;
- and
- a second stage plate structure coupled to the plurality of second stage pistons;
- a BOP pin receiving structure that interfaces with a BOP pin of the BOP, thereby providing a reaction point for rotation of the tubing hanger orientation mandrel with respect to the BOP;
- and
- at least one gyroscopic sensor operable to measure an orientation of the tubing hanger assembly.
Dependencies are inferred from the claim text.