High expansion downhole packer
US6041858A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1997 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Sep 27, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An expandable apparatus for sealing a space downhole in a wellbore. The apparatus has an expandable body having a hollow interior for defining an open flow path. A deformable material within the hollow body interior partially obstructs the flow path when the body is run into the wellbore, and the deformable material is displaceable to expand the body into the downhole space and to open the body flow path. Such material can be displaced with a setting tool or with mechanical movement of the body components. A second body section can be moved relative to a first body section to displace the deformable material from the body interior. The second body section can initially be discontinuous with the first body section to permit installation through narrow wellbore spaces and can be connected downhole to create a unitary body structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.