Ultra-high pressure drilling valve for offshore oil exploitation
By adopting inclined throttling orifices, annular groove structures, and spiral turbulence ribs in ultra-high pressure drilling valves, cavitation cavitation and erosion wear problems are solved, achieving high stability and easy maintenance of the valves, making them suitable for offshore oil extraction.
Patent Information
- Application Number
- CN202610642524.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ultra-high pressure drilling valves suffer from severe cavitation erosion and severe wear due to pressure differentials in offshore oil extraction. Furthermore, their traditional structures are complex and difficult to maintain, making it difficult to meet the high reliability and easy maintenance requirements of offshore platforms.
An ultra-high pressure drilling valve was designed, which adopts an inclined throttling orifice and an annular groove structure, combined with a spiral turbulence rib. The energy is consumed by the collision and turbulence of the fluid in the annular groove, which reduces the flow velocity and disperses the impact force, avoiding direct impact on the valve core assembly. At the same time, high-hardness alloy materials and intelligent control system are used to improve sealing performance and reliability.
It significantly reduces cavitation cavitation and erosion wear, extends valve service life, improves stability and durability, simplifies the maintenance process, and reduces maintenance costs.
Smart Images
Figure CN122407108A_ABST