Activation of downhole tools
US5819854A · kind A · utility
26Cited by
4References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Feb 6, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1295
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A primarily electronically set permanent or retrievable downhole tool having a hydraulic contingency arrangement to activate the downhole tool in the conventional way in the event electronic communication fails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.