Method and apparatus for production using a pressure actuated circulating valve
US6397949B1 · kind B1 · utility
45Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Aug 20, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/102
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a pressure actuated valve for use in well completion assemblies. The valve is operable by pressure between three configurations. In a first configuration, the valve is in a locked-closed configuration. In a second configuration, the valve remains closed but is unlocked. In a third configuration, the valve is open. Also disclosed is a method of installing and operating a three pressure actuated valve in a well completion operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.