Anti-corrosion oil well valve and using method thereof

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AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By designing a lifting gate and sealing strip, the problem of insufficient sealing performance of oil well valves due to corrosion is solved, achieving self-repair and continuous sealing effect, thus improving the reliability of valve use.

CN120925802AActive Publication Date: 2025-11-11XIAN MAURER PETROLEUM ENG LAB

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Patent Information

Application Number: CN202511467640.8
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2025-10-15
Publication Date: 2025-11-11
Estimated Expiration: 2045-10-15

Application Information

Patent Timeline

15 Oct 2025

Application

CN202511467640.8

11 Nov 2025

Publication

CN120925802A

IPC: E21B34/02

CPC: E21B34/02; E21B2200/05

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Application Domain

Constructions Well/borehole valve arrangements

Technology Topics

Corrosion resistant Oil well

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AI Technical Summary

Technical Problem

Existing oil well valve gates are prone to corrosion during use, leading to insufficient sealing, damage to rubber components, and leakage problems.

Method used

A corrosion-resistant oil well valve was designed, which adopts a lifting gate structure and is equipped with multiple sealing strips and pressure-sensitive expansion components. It achieves self-repair through the expansion and compression mechanism of the sealing strips to ensure sealing effect.

Benefits of technology

When the sealing strip is corroded or damaged, the third sealing strip opens in time to prevent leakage, thus improving the valve's sealing performance and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of oil well valves, and discloses an anti-corrosion oil well valve and a using method thereof.The anti-corrosion oil well valve comprises an oil well pipeline and a valve body arranged on the oil well pipeline, a movable cavity is formed in the valve body and communicates with the oil well pipeline, and a lifting flashboard for cutting off a circulation channel of the oil well pipeline is movably arranged in the movable cavity; the outer side wall of the lifting gate plate is provided with a strip-shaped blocking and blocking strip assembly tightly attached to the side wall of the movable cavity. The strip-shaped blocking and blocking strip assembly comprises a first blocking strip and a second blocking strip. The first plugging strip is damaged and collapsed, at the moment, the first plugging strip loses the sealing effect, liquid in the oil well pipeline enters the communicating hole from the first plugging strip mounting groove and reaches the upper portion of the second plugging strip, and therefore the pressure of the liquid originally located in the oil well pipeline can act on the second plugging strip; and meanwhile, the second plugging strip extrudes the inner wall of the movable cavity, and the plugging effect of the lifting flashboard on the oil well pipeline is improved.

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