Seal ring for well completion tools
US6843480B2 · kind B2 · utility
26Cited by
47References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Aug 7, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A high pressure ring seal for tube assembly joints provides structural foundation ring having inside and outside circumferential channels between end rims. The channels and rims are separated by a web of integral ring material. This web is perforated by a plurality of apertures. As an integral coating within both channels and integrally tied through the web apertures is a coating of polymer sealant material. Inside and outside faces of the sealant are pressure equalized by vent apertures through the web apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.