Downhole actuation system utilizing electroactive fluids
US6926089B2 · kind B2 · utility
26Cited by
27References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S137/909
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Downhole wellbore tools are actuated by electrically controllable fluids energized by a magnetic field, for example. When energized, the viscosity state of the fluid may be increased by a degree depending on the fluid formulation. Reduction of the controllable fluid viscosity by terminating a magnetic field acting upon the fluid may permit in situ wellbore pressure to actuate a downhole device, such as a wellbore packer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.