Two line operation of two hydraulically controlled downhole devices
US9051830B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2014 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Jun 24, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole hydraulic control system includes a hydraulic control module positioned in a well. First and second hydraulically controlled devices are positioned in the well. The first hydraulically controlled device has a first actuator and the second hydraulically controlled device has a second actuator. First and second hydraulic control lines extend uphole of the hydraulic control module in the well. In a first configuration of the hydraulic control module, pressure variations in the first and second hydraulic control lines are operable to independently shift the first and second actuators in respective first directions. In a second configuration of the hydraulic control module, pressure variations in the first and second hydraulic control lines are operable to shift the first and second actuators in respective second directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.