Swellable downhole device of substantially constant profile
US8651179B2 · kind B2 · utility
3Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | May 26, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A swellable packer device upon exposure to brine in a well. The device may be swellable to a substantially constant profile in spite of significant fluctuations in brine concentrations. Thus, the likelihood of packer failure due to under-swelling or over-swelling is reduced. Indeed, the packer may be employed for long-term operations or isolations ranging from a couple of weeks to twenty years or more without undue concern over packer failure from under or over swelling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.