Anchor and anchor positioner assembly
US4369840A · kind A · utility
25Cited by
21References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1979 |
| Grant date | Jan 25, 1983 |
| Priority date | — |
| Expiry date | Dec 27, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An anchor tool and cooperating anchor positioner for use in a well bore are disclosed. The anchor tool may be employed as part of a well casing or liner, while the anchor positioner is part of a tool string run inside the casing or liner. The anchor positioner locates and anchors the tool string at a desired level in the well bore by engagement with the anchor tool placed at that location. Multiple anchor tools may be employed if it is desired to deploy the tool string at different levels. All operation of the anchor positioner is effected by mechanical force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.