Well packer valve arrangement
USRE32438E · kind E · reissue
0Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1984 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Jun 21, 2004 |
Classification
- Technology area (CPC —)General
Abstract
A valve system for use in inflating packers mounted on mandrels. The valve system uses one or more valves 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. The differential pressure across reciprocating seals is minimized through exposure of one or both sides, directly or indirectly, to the external pressure of the mandrel and packer, the exposure including the use of a check valve to permit flow from the exterior of the mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.