Packer valve arrangement
US4527625A · kind A · utility
8Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1984 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Jun 6, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/127
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A valve system for use in inflating packers mounted on mandrels is disclosed. The valve system uses one valve to permit, through the use of seals, the flow of fluid from the interior of a tubular mandrel to the interior of the inflatable packer when pressure applied in the mandrel exceeds at least a minimum pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.