一种深井用具有双向补偿功能的补偿器

By using bidirectional compensators with components such as graphite sealing rings and barrier cloth in deep well reservoir development, the problem of sealing ring wear has been solved, achieving self-cleaning and simplified maintenance, reducing maintenance costs and frequency.

CN122169724BActive Publication Date: 2026-07-17DONGYING ZHAOXIN IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGYING ZHAOXIN IND & TRADE CO LTD
Filing Date
2026-05-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In deep well oil reservoir development, packers suffer severe wear of the sealing rings due to bidirectional expansion and contraction deformation of the downhole tubing and gravel intrusion, affecting sealing life and production progress, resulting in high maintenance frequency and high costs.

Method used

A bidirectional compensator for deep wells is designed, which uses components such as graphite sealing rings, barrier cloth, elastic strips and guide ring frames to form a physical barrier to block sand and gravel. The reciprocating drive component drives the limit ring to rotate, achieving self-cleaning, reducing the wear of the sealing ring, and simplifying the maintenance process.

Benefits of technology

It effectively prevents sand and gravel from entering the sealing area, reduces the wear rate of the sealing ring, extends the seal life, reduces maintenance frequency and cost, and simplifies the maintenance process.

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Abstract

本发明涉及补偿器技术领域,尤其涉及一种深井用具有双向补偿功能的补偿器。包括有外套管,所述外套管内安装有对称分布的固定环,对称分布的所述固定环之间设置有石墨密封圈,对称分布的所述固定环共同滑动连接有内套筒,所述外套管和所述内套筒均与所述石墨密封圈密封接触,所述外套管设置有滑动筒,所述内套筒设置有限位环,所述滑动筒与所述限位环之间固接有阻隔布,所述阻隔布用于对砂砾进行阻挡。本发明通过阻隔布在石墨密封圈朝向含砂流体进入方向的上游形成一道物理屏障,将砂砾阻挡在密封区域之外,减少砂砾进入石墨密封圈和内套筒之间与石墨密封圈的磨损接触,降低了石墨密封圈的磨损速率。
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