Fluid density valve, method, and system
US12410680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jan 6, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3006
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid density valve housing includes a pilot fluid inlet and outlet and a primary fluid inlet and outlet. A shuttle is disposed within the housing. The shuttle comprises a portion having a reference density and a portion defining a cavity fluidically connected to the pilot fluid inlet, the shuttle permitting or denying primary fluid flow depending upon a density of a pilot fluid flowing through the cavity versus the reference density. A method for controlling flow, including comparing density of a pilot flow with a reference density, moving a valve between fully open, fully closed, and choked depending upon the differential density between the pilot fluid and the reference density. A borehole system, including a borehole in a subsurface formation, a string in the borehole, and a fluid density valve disposed within or as a part of the string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.