Tubing pressure operated downhole fluid flow control system
US9816352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2013 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole flow control system utilizes a tubing pressure operated valve to selectively open and close fluid flow across the system. The tubing pressure operated valve includes a piston responsive to tubing pressure, and a valve element responsive to piston movement. The valve element can be moved rotationally, longitudinally, or both, in response to the piston movement. The valve is movable between a closed and at least one open position. The piston and valve elements can be releasably attachable, such as by a one-way ratchet. The valve element can be a rotating valve operable by a J-slot mechanism to rotate to multiple positions in response to movement of the piston element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.