Secure activation of a downhole device
US7347278B2 · kind B2 · utility
110Cited by
68References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Feb 22, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system includes a well tool for deployment in a well, a controller, and a link coupled between the controller and the well tool. The well tool comprises plural control units, each of the plural control units having a microprocessor and an initiator coupled to the microprocessor. Each microprocessor is adapted to communicate bi-directionally with the controller. The controller is adapted to send a plurality of activation commands to respective microprocessors to activate the respective control units. Each activation command containing a unique identifier corresponding to a respective control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.