Retrievable straddle packer
US4590995A · kind A · utility
170Cited by
22References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1985 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Mar 26, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1291
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved retrievable compression set straddle packer assembly for use in oil and gas wells. The straddle packer assembly comprises an hydraulic slip assembly, an injection mandrel assembly, a packer assembly, a mechanical slip assembly, a drag block assembly, and a bypass assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.