Single trip positive lock adjustable hanger landing shoulder device
AssigneeCameron International Corporation
InventorDennis P. Nguyen
Life of this patent
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Abstract
A system, in certain embodiments, includes a landing assembly. The landing assembly includes a top ring. The landing assembly also includes a bottom ring disposed axially below the top ring. A radially interior surface of the top ring is configured to engage a radially exterior surface of the bottom ring via first threading. The landing assembly also includes a lock ring disposed between the top ring and the bottom ring on a radially exterior side of the landing assembly. The landing assembly further includes a landing ring disposed axially below the bottom ring.
Claims27
A system, comprising:
- a landing assembly, comprising:
- a top ring;
- a bottom ring disposed axially below the top ring, wherein a radially interior surface of the top ring is configured to engage a radially exterior surface of the bottom ring via first threading;
- a lock ring disposed between the top ring and the bottom ring on a radially exterior side of the landing assembly;
- and
- a landing ring disposed axially below the bottom ring.
A system, comprising:
- a wellhead;
- a hanger disposed within the wellhead;
- and
- a landing assembly configured to be lowered into the wellhead between the wellhead and the hanger and to lock into place between the hanger and the wellhead via a lock ring which is configured to expand radially from the landing assembly and mate with a recess in the wellhead, wherein the radial expansion of the lock ring is caused by rotation of a top ring and a bottom ring of the landing assembly relative to each other.
A method for locking a landing assembly in place within a wellhead, comprising:
- rotating a landing assembly about a longitudinal axis of a wellhead in a first rotational direction;
- breaking a shear pin between a top ring and a bottom ring of the landing assembly;
- and
- rotating the bottom ring of the landing assembly about the longitudinal axis relative to the top ring of the landing assembly in a second rotational direction opposite to the first rotational direction;
- wherein rotation of the bottom ring of the landing assembly relative to the top ring of the landing assembly causes a lock ring of the landing assembly to radially expand, locking the landing assembly in place within the wellhead.
Dependencies are inferred from the claim text.