Slip mechanism for a well tool
US5101897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1991 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Jan 14, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1293
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A slip mechanism for anchoring a well tool in a well conduit. A first cylindrical wedge member having on its outer surface a plurality of circumferentially extending grooves, preferably forming a helix in which the grooves include an outwardly tapered side. A second cylindrical shaped slip member having a plurality of slips is positioned outside of the first member and includes a plurality of teeth on its outer surface and includes ridges mating with and coacting with the grooves on the first member. The ridges include a tapered side coacting with the tapered sides of said first member for providing radial displacement of the slip when the wedge member and slip member are moved axially to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.