Metal-to-metal seal with retention device
US8607861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Oct 28, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/0887
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A downhole tool includes a first portion having a first metal protrusion configured to seal against a first metal surface and a second portion having a second metal protrusion configured to seal against a second metal surface. A ratcheting device includes a first element having a plurality of grooves, and a second element having at least two sets of teeth, wherein one of the at least two sets of teeth engages the plurality of grooves. Additionally, a method of forming a downhole seal includes disposing in a wellbore a downhole tool including an inner tubular, a lock ring, a lower ring, an upper ring, an insert ring, and a deformable element. The method further includes moving a wedge sleeve axially downward with respect to the downhole tool such that the wedge sleeve engages the deformable ring and forces a first metal protrusion on the deformable element into contact with an outer tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.