Zero-gap hanger systems and methods
AssigneeCameron International Corporation
InventorsKirk Guidry, Dennis P. Nguyen, Barret Heinrich
Life of this patent
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Abstract
A hanger system for use with a housing of a wellhead includes a hanger assembly. The hanger assembly includes a hanger having a respective radially-outer surface and a radially-extending surface, as well as a first annular wedge having a respective radially-outer surface with a first annular wedge surface texture. The radially-extending surface is configured to engage a shoulder of the housing of the wellhead while the hanger assembly is in a landed position within the housing of the wellhead, and the first annular wedge surface texture is configured to engage a respective-radially inner surface of the housing of the wellhead while the hanger assembly is in a sealed position within the housing of the wellhead.
Claims20
A hanger system for use with a housing of a wellhead, the hanger system comprising:
- a hanger assembly, comprising:
- a hanger comprising a respective radially-outer surface and a radially-extending surface;
- and
- a first annular wedge comprising a respective radially-outer surface with a first annular wedge surface texture;
- wherein the radially-extending surface is configured to engage a shoulder of the housing of the wellhead while the hanger assembly is in a landed position within the housing of the wellhead, and the first annular wedge surface texture is configured to engage and seal against a respective radially-inner surface of the housing of the wellhead while the hanger assembly is in a sealed position within the housing of the wellhead.
A hanger system for use with a housing of a wellhead, comprising:
- a hanger assembly, comprising:
- a hanger;
- and
- a first annular wedge and a second annular wedge, wherein the second annular wedge circumferentially surrounds the hanger, the first annular wedge circumferentially surrounds the second annular wedge, and the first annular wedge comprises a respective radially-outer surface with a first annular wedge surface texture;
- and
- a clamp configured to compress the housing of the wellhead toward the hanger assembly to form a respective seal between the first annular wedge surface texture and the housing of the wellhead.
A method, comprising:
- running, with a hanger running tool, a hanger assembly into a housing of a wellhead, wherein the hanger assembly comprises a hanger and a first annular wedge with a first annular wedge surface texture;
- setting the hanger assembly in a landed position within the housing of the wellhead via contact between a radially-extending surface of the hanger assembly and a shoulder of the housing of the wellhead;
- and
- subsequently actuating a clamp to compress the housing of the wellhead toward the hanger assembly to form a respective seal between the first annular wedge surface texture and the housing of the wellhead.
Dependencies are inferred from the claim text.