High-temperature, high-pressure, fluid-tight seal using a series of annular rings
US9719318B2 · kind B2 · utility
1Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2013 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Dec 19, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention is directed to a novel and useful fluid-tight, metal-to-metal, annular seal which can be repeatedly cycled in a high temperature, high pressure environment. More specifically, the invention provides a metal-to-metal, annular, seal on a radially expandable sliding sleeve which moves longitudinally from a reduced ID section of a bore to an enlarged section of the bore. The seal is disengaged at the enlarged bore section resulting in rapid fluid flow and pressure equalization which would destroy many traditional elastomer seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.