Packing assembly for use with reeled tubing and method of operating and removing same
US5146994A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 1990 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1295
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A packing assembly which is connectable to reeled tubing and which can be inserted in and pushed through a wellbore tube by the reeled tubing. The packing assembly is hydraulically set in a locking and sealing position in the wellbore by fluid introduced from the reeled tubing and, after use, is hydraulically released and removed from the wellbore. An actuating apparatus is provided for hydraulically actuating the packing assembly and can be converted in a manner to pull the packing assembly from the wellbore. Prior to the removal of the packing assembly from the wellbore, the wellbore fluid pressure is equalized across the packing assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.