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US 2016/0237777 A1Published application
Metal Chevron Seal
AssigneeHalliburton Energy Services, Inc.
InventorAlfred Ronald Curington
Life of this patent
Estimating the term…
Abstract
A well tool has an elongate, metal outer tubing and an elongate, metal inner tubing received in the outer tubing to move axially with respect to the outer tubing. A metal annular seal assembly is provided between the outer and inner tubings residing in a seal chamber of the outer or inner tubing. The seal assembly has a center ring, a chevron seal ring on each side of the center ring and an end ring at each axial end of the seal assembly. The seal chamber is tight to the seal assembly.
Claims20
A well tool, comprising:
- an elongate, metal outer tubing;
- an elongate, metal inner tubing received in the outer tubing to move axially with respect to the outer tubing;
- and
- a metal annular seal assembly between the outer and inner tubings residing in a seal chamber of the outer or inner tubing and contacting the other of the outer or inner tubing, the annular seal assembly comprising a center ring, a chevron seal ring on each side of the center ring and an end ring at each axial end of the seal assembly, and the seal chamber being tight to the axial ends of the annular seal assembly.
1 more element
A method, comprising:
- supporting a metal chevron seal assembly tightly between end walls of a seal chamber of a first elongate, metal tubing in a well;
- and
- sealing, with the metal chevron seal assembly, between first tubing and a second, elongate metal tubing nested with the first tubing, while the tubings are moving relative to one another.
A well device for use in a well, comprising:
- a first and second nested metal tubing;
- and
- an annular seal chamber associated with the first tubing and comprising an annular metal chevron seal assembly in the seal chamber, the seal chamber having no substantial gap between the axial ends of the seal assembly and the seal chamber.
Dependencies are inferred from the claim text.