Sealing spring mechanism for a subterranean well
US7428928B2 · kind B2 · utility
6Cited by
11References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Aug 8, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A technique includes deploying a spring downhole, energizing the spring and using the energized spring to form an annular barrier in the well. The spring may be energized prior to being run downhole or after being run downhole, depending on the particular embodiment of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.