Wireline set/tubing retrieve packer type bridge plug
US4648446A · kind A · utility
19Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Jun 27, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/134
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A packer type bridge plug for use in wells which may be set upon a wireline and retrieved upon a tubing string. The retrieval of the bridge plug is facilitated by the positive retraction of the upper and lower wedge members from beneath the slips during the retrieval process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.