Tool using outputs of sensors responsive to signaling
US7775273B2 · kind B2 · utility
9Cited by
23References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Sep 17, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for use in a wellbore includes a tool string and a plurality of sensors, which include at least a first sensor to detect pressure signals in an inner conduit of the tool string and at least a second sensor to detect pressure signals in an annulus outside the tool string. A controller actuates a tool in the tool string in response to a logical combination of outputs from the sensors, where the outputs of the sensors are responsive to the respective pressure signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.