Wire line running and/or pulling tool
US4591197A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1985 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Feb 11, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
These are disclosed three embodiments of a wire line tool for use in running and/or pulling a well tool within a well bore. In each embodiment, latches are carried about a body of the wire line tool and yieldably urged from inner positions, in which their outer ends are adapted to move into the well tool, to outer positions in which their outer ends extend into a groove in the well tool when opposite thereto. The wire line tool may be latched to the well tool at the surface for the purpose of running it into the well tool, or lowered into a well bore and latched to a well tool therein for the purpose of pulling the well tool. The latches are forced inwardly to remove their outer ends from the groove, and then retained against outward movement, in response to downward jarring of the body and subsequent lifting of the body with the wire line to permit the wire line tool to be retrieved from the well tool following running of the well tool into the well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.