Method for signalling a downhole device in a flowing well
US7673680B2 · kind B2 · utility
7Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2005 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for controlling the operation of a flowing or producing well utilising: a downhole located pressure monitoring device which is operative to monitor a characteristic pressure profile of the flowing well, and to respond when a significant deviation to the pressure profile is introduced into the well as a control signal to the monitoring device; and an actuator which is initiated into operation to control any required operation of the well when the monitoring device responds to the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.