一种适用于二氧化碳驱油的井下减压阀
By designing a variable-area annular fluid channel and damping orifice in the pressure reducing valve, the problems of sand prevention and clogging in existing pressure reducing valves in high-pressure carbon dioxide oil displacement processes are solved, achieving stable pressure reduction and self-cleaning effects for crude oil containing impurities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG PETROCHEMICAL INST
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pressure reducing valves have weak sand and blockage prevention capabilities in high-pressure carbon dioxide flooding processes, and cannot adapt to complex crude oil containing impurities, leading to instability in the oil production process.
The design incorporates a variable cross-sectional area of the annular fluid channel formed by the connection part of the first valve core and the inner edge of the annular baffle. Combined with a damping orifice and a variable area annular slit, it has a self-cleaning function to prevent the accumulation of impurities and is suitable for complex crude oil containing impurities.
It effectively reduces the pressure on crude oil containing impurities, prevents blockages and jamming, and improves the stability and safety of the oil extraction process.
Smart Images
Figure CN122190680B_ABST