一种防喷无余隙抽油泵

By designing a blowout-proof, gapless oil pump and using a check valve and sealing device to eliminate clearance, the problems of well blowout and pump efficiency were solved, achieving safe and efficient oil well production.

CN224515356UActive Publication Date: 2026-07-17SHAANXI HUAXU ZHIHUI ENERGY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI HUAXU ZHIHUI ENERGY TECHNOLOGY CO LTD
Filing Date
2025-09-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Well blowouts are prone to occur when there is pressure at the wellhead, leading to engineering accidents. At the same time, the clearance of the oil pump affects the pump efficiency. Existing measures such as increasing the pump hanger depth or well control operations are not effective, increasing costs and risks.

Method used

The design incorporates a blowout-proof, gapless oil pump with a single-flow valve structure and sealing device to ensure that fluid can only flow from bottom to top. High-density heavy oil is injected through the storage pipe and plug joint to eliminate gaps and prevent blowouts and gas from affecting pump efficiency.

Benefits of technology

It achieves blowout-free operation when pumping down a high-pressure oil well, avoiding oil layer contamination, improving pump efficiency, reducing safety risks and production costs, and meeting environmental protection requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

一种防喷无余隙抽油泵,出油阀、进油阀为单流阀,出油阀安装在柱塞的下部,柱塞放置在泵筒内,偏置阀体内设置偏通道、联通槽、主通道,所述的偏通道与所述的主通道之间由所述的联通槽联通,偏置阀体里安装进油阀,所述的主通道内安装挡住联通槽的密封装置,泵筒的下部连接在所述的主通道的上部,使泵筒与所述的主通道相通,偏置阀体的下部安装储存管,储存管的下部安装堵塞接头,堵塞接头使储存管的下部封闭,堵塞接头上安装注入口,注入口为单向机构,可从注入口向偏置阀体、储存管内注入密度大于井液的重油。所述的主通道的下部有缩径段,缩径段的直径小于柱塞的外径,所述的密封装置的外径大于缩径段的直径,在缩径段处安装泄油销钉。
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