Sequential inflatable packer
US4577695A · kind A · utility
5Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Apr 4, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1243
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a completion of an oil well where the well bore traverses the earth formations, a multiple series of inflatable packer elements are employed with each packer element having a defined sequential dependency of inflation to inflate the lowermost packer first then to inflate the packers in a sequence from the lowermost packer upwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.