Ring member for a swellable downhole packer
US8074723B2 · kind B2 · utility
5Cited by
6References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Apr 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ring member for a downhole apparatus includes a swellable material selected to increase in volume on exposure to at least one triggering fluid. The ring member is configured to cooperate with a swellable member disposed on a body of the apparatus, and may function as a gauge ring or a retaining member. The ring member is secured to the apparatus via a coupling arrangement which couples the body to an adjacent well string section. The ring member may be threaded into the well string. Alternately, the ring member may be disposed over an upstanding formation such as a coupling sleeve by clamping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.