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US 10,895,125 B2Granted
Completion interface systems for use with surface BOPS
AssigneeTrendsetter Vulcan Offshore, Inc.
InventorsJames V. Maher, Daniel McCelvey
Life of this patent
Estimating the term…
Abstract
A surface joint provides a sealing interface between pipe rams or variable-bore rams of a surface blowout preventer and a landing string. The surface joint may be used in a system including the surface blowout preventer, a subsea mudline closure device having a conventional configuration without additional pipe rams or variable-bore rams used to close on a slip joint, and a high-pressure riser.
Claims23
A completion interface for use with a surface blowout preventer, comprising:
- a portion of a landing string;
- and
- a surface joint including:
- a cylindrical body having an outer radial surface and a central longitudinal axis, the cylindrical body including a first axial passageway traversing through the cylindrical body, the first axial passageway being sealed against the portion of the landing string, wherein the cylindrical body further includes a second axial passageway traversing through the cylindrical body, and wherein the second axial passageway is radially offset from the first axial passageway;
- and
- castellations projecting radially outward from the outer radial surface of the cylindrical body to an outer diameter of the surface joint,
- wherein the castellations are spaced along the central longitudinal axis, and
- wherein the castellations define a plurality of grooves.
5 more elements
A system for use in completion operation, comprising:
- a surface blowout preventer having at least one variable-bore ram;
- a landing string;
- and
- a surface joint including:
- a cylindrical body having an outer radial surface and a central longitudinal axis, the cylindrical body including a first axial passageway traversing through the cylindrical body, the first axial passageway being sealed against a portion of the landing string;
- and
- castellations projecting radially outward from the outer radial surface of the cylindrical body to an outer diameter of the surface joint,
- wherein the castellations are spaced along the central longitudinal axis,
- wherein the castellations define a plurality of grooves,
- wherein any of the plurality of grooves is configured to be sealingly engaged by the at least one variable-bore ram.
7 more elements
A method for performing completion operation, comprising:
- lowering a lower portion of a landing string in a subsea well;
- providing a surface joint comprising:
- a cylindrical body having an outer radial surface and a central longitudinal axis,
- the cylindrical body including a first axial passageway traversing through the cylindrical body, the first axial passageway being sealed against an upper portion of the landing string;
- and
- castellations projecting radially outward from the outer radial surface of the cylindrical body to an outer diameter of the surface joint,
- wherein the castellations are spaced along the central longitudinal axis,
- wherein the castellations define a plurality of grooves;
- connecting the upper portion of the landing string to the lower portion of the landing string;
- inserting the surface joint in a surface blowout preventer having at least one variable-bore ram;
- and
- sealingly engaging one of the plurality of grooves with the at least one variable-bore ram.
9 more elements
Dependencies are inferred from the claim text.