High expansion slip system
US6026899A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Sep 27, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A high expansion slip system for anchoring a tool to a downhole wellbore surface. A slip is initially retained within the interior volume of a tool body for installation downhole in the wellbore. The slip has an inclined surface which moves the slip radially outwardly when the slip is move axially along a longitudinal axis through the tool body. Two opposing slips can be operated to center the tool body within the wellbore, and the setting of the two slips can be synchronized to control the tool body position and setting force on each slip. After the slips have been moved from the interior space to engage the wellbore surface, the hollow interior space within the tool body is unobstructed to open an unobstructed flow path for passage of fluids or well tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.