Wireline hydraulic isolation packer system
US4852654A · kind A · utility
16Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | May 13, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/124
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A unitary assembly (10); is disclosed for isolating a leak in a side pocket mandrel (12) between the tubing annulus (16) about a tubing string (14) and the interior (20) of the tubing string. The unitary assembly includes an upper packer (22), and a lower packer (24) interconnected by a tailpipe (26). The upper packer (22) is preferably set by a wireline tool and the lower packer is preferably set hydraulically. This eliminates the need for a drilling or workover rig to be setup over the well when patching a leak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.