Multi-component tubular coupling for wellhead systems
AssigneeCameron International Corporation
InventorDennis P. Nguyen
Life of this patent
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Abstract
A multi-component tubular coupling is provided for wellhead assemblies. In one embodiment, the multi-component tubular coupling may include a first tubular member, a landing ring, and a second tubular member. The second tubular member may include internal threads, lock screws, or any combination thereof to couple to a wellhead component. In another embodiment, the multi-component tubular coupling may only include the first tubular member and the landing ring. In such an embodiment, a wellhead component may be secured to the coupling via lock screws.
Claims23
A coupling for wellhead components, comprising:
- a first tubular member comprising first internal threads, an inlet and an outlet;
- a landing ring comprising external threads and an external annular protrusion extending radially outward over a first axial end of the first tubular member, wherein the landing ring extends axially into the first tubular member, and the landing ring is coupled to the first tubular member;
- and
- a second tubular member comprising second internal threads and an internal protrusion extending radially inward under the external annular protrusion of the landing ring, wherein the landing ring is axially stacked on the first tubular member and the second tubular member is stacked on the first tubular member.
A wellhead system, comprising:
- a first component coupled to a second component via a coupling;
- wherein the coupling comprises:
- a first tubular member disposed at least partially around the second component;
- a landing ring comprising a portion extending axially into an annulus of the first tubular member, wherein the landing ring comprises a flanged portion extending radially over a first axial end of the first tubular member;
- and
- a second tubular member disposed at least partially around the first tubular member, the landing ring, and the first component, wherein the second tubular member comprises internal threads configured to couple to external threads of the first component.
A system, comprising:
- a first component;
- a multi-component tubular coupling coupled to the first component, wherein the multi-component tubular coupling comprises:
- a first tubular member comprising an annular wall and first internal threads disposed on the annular wall, wherein the first tubular member is coupled to the first component via the first internal threads;
- and
- a landing ring extending axially into the first tubular member, wherein the landing ring comprises a flanged portion extending radially over a first axial end of the annular wall, wherein the flanged portion comprises a contoured surface configured to engage a lock down screw.
Dependencies are inferred from the claim text.