Filler rings for swellable packers and method for using same
US8800670B2 · kind B2 · utility
2Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jan 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A swellable packer with an enhanced sealing ability comprises a tubular body, a swellable element, and a filler ring disposed about the tubular body between the tubular body and the swellable element. The filler ring is formed of a material harder than the swellable element. The filler ring enhances the sealing ability of the swellable packer. Any number of filler rings may be used. The filler ring or rings may be fixed to the tubular body or may be unfixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.