一种具有防砂耐磨双重特性的井下筛管
By combining inner and outer tubes and designing a wear-resistant layer, the shortcomings of downhole screen pipes in terms of sand control and wear resistance are solved, enabling dynamic adjustment of the aperture and extension of service life, making it suitable for sand control operations under complex working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINHUAXIA INT ENERGY DEV CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing downhole screens are inadequate in terms of sand control and wear resistance, especially when dealing with different flow rates and orifice sizes, where their wear resistance is limited and replacement is frequent.
It adopts a combination structure of inner and outer tubes. The outer wall of the inner tube is provided with ribs and a ceramic layer, while the inner wall of the outer tube is provided with grooves and a chrome-plated layer. The orifice diameter is adjusted by axial movement of the inner and outer tubes. Combined with the wear resistance of the ceramic layer and the chrome-plated layer, it achieves the dual characteristics of sand prevention and wear resistance.
It enables dynamic adjustment of the orifice diameter, adapting to different flow rates and orifice diameters, improving ease of use and work efficiency, extending service life, and reducing replacement frequency.
Smart Images
Figure CN224515169U_ABST