Systems, methods, and devices for isolating portions of a wellhead from fluid pressure
AssigneeCameron International Corporation
InventorsDennis P. Nguyen, Jay Patrick Painter
Life of this patent
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Abstract
A wellhead system is provided. In one embodiment, the wellhead system includes a bypass sleeve for temporarily isolating portions of a wellhead assembly from pressurized fracing fluid. The bypass sleeve may include a generally tubular body having a tool interface, a lock ring disposed at least partially around the body, and an anti-rotation device coupled to the body. In some embodiments, the anti-rotation device includes a resilient member disposed in a cavity in the body, and an anti-rotation member biased away from the body by the resilient member. The anti-rotation member of some embodiments extends radially outward from the body.
Claims23
-4. (canceled)
A device, comprising:
- a bypass sleeve configured to fit at least partially within a wellhead assembly;
- and
- an anti-rotation device coupled to the bypass sleeve, wherein the anti-rotation device is configured to impede the bypass sleeve from rotating relative to the wellhead assembly.
-21. (canceled)
A system, comprising:
- a wellhead assembly comprising:
- a tubing head having a flange configured to couple to a blowout preventer through a top surface of the flange;
- and
- a bypass sleeve disposed substantially entirely within the tubing head and below the top surface of the flange.
-65. (canceled)
A device, comprising:
- a bypass sleeve configured to be secured within a wellhead assembly;
- and
- a removable bushing configured to be secured within the bypass sleeve, wherein the removable bushing is configured to secure a pressure barrier within the removable bushing.
Dependencies are inferred from the claim text.