Hydraulic locking mechanism for downhole valve
US12385372B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2023 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Aug 11, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/1423
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bi-directional valve with valve elements having compliant features biasing them together to maintain a sealing interface that defines a fluid communication barrier within the valve. Parting the valve elements from one another removes the sealing interface allow fluid communication across the valve elements. The valve includes a side port and a choke member that selectively blocks fluid flow through the valve when moved adjacent the side port and selectively opens the valve to fluid communication when moved away from the side port. The choke member remains adjacent the side port until the valve elements are spaced a distance apart greater than that at which valve erosion or fluid cavitation occurs. Also included with the valve are systems for counterbalancing forces exerted onto the valve from differential pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.