Packer releasing system
US6629563B2 · kind B2 · utility
42Cited by
16References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jun 27, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a release system for a packer the release ring is minimally exposed in the wellbore and is actuated by a release tool, which comprises a collet and cone with a relative movement feature. In the preferred embodiment, the release ring has alternating cuts and a built in radially outward bias. The ring is held in locked position by bands, which are broken by the action of the releasing tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.