System and method for downhole operation using pressure activated and sleeve valve assembly
US7665526B2 · kind B2 · utility
3Cited by
68References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An isolation system for producing oil and gas from one or more formation zones and methods of use are provided comprising one or more pressure activated and tool shiftable valve assemblies. The tool shiftable valve may be actuated before or after actuation of the pressure activated valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.