Single line control module for well tool actuation
US7503385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2006 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Dec 27, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A single line control module for well tool actuation. A well tool control system includes an actuator, a control module for controlling pressure applied to the actuator, and a single line extending between the control module and a remote location, elevated pressure being applied to the line and exhausted from the line at the remote location to operate the actuator. Another well tool control system includes an actuator having first and second chambers, a line for applying elevated pressure to the actuator to operate the actuator, and a control module including an accumulator, and a valve. The valve has a first position in which the line is connected to the first chamber and the accumulator is connected to the second chamber, and a second position in which the line is connected to the second chamber and the accumulator is connected to the first chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.