一种深水超浅层气开采中积液预警和快速清除装置及方法

By using a liquid accumulation early warning and rapid removal device in deep-water ultra-shallow gas wells, and by monitoring in real time and utilizing the synergistic effect of a bubble agent and plunger liquid drainage components, the problem of liquid accumulation in deep-water ultra-shallow gas wells has been solved, improving production stability and efficiency and reducing costs.

CN122169803BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (EAST CHINA)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Deep-water ultra-shallow gas wells are prone to wellbore fluid accumulation during the extraction process. Existing technologies are difficult to identify and remove in a timely manner, leading to a decrease in gas well production and unstable production. Moreover, operating in deep-water environments is costly and difficult to implement.

Method used

A device for early warning and rapid removal of liquid accumulation in deep-water ultra-shallow gas extraction is adopted, including a riser, casing, blowout preventer and a collaborative control device. It utilizes a critical liquid carrying rate calculation system, a data acquisition device, a liquid accumulation discrimination and intelligent early warning system and a bottom hole liquid dynamic removal device to monitor the wellbore flow status in real time. Through the synergistic action of bubbler injection and plunger liquid discharge assembly, the liquid accumulation is rapidly removed.

Benefits of technology

It enables timely identification and efficient removal of liquid accumulation in the wellbore, improves the production stability and drainage efficiency of gas wells, reduces the cost of deepwater operations, and reduces reliance on manual intervention. It is suitable for deepwater ultra-shallow gas wells and low-yield, low-pressure gas wells.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122169803B_ABST
    Figure CN122169803B_ABST
Patent Text Reader

Abstract

本发明涉及海洋油气资源开发技术领域,特别涉及一种深水超浅层气开采中积液预警和快速清除装置及方法。其技术方案是:临界携液速率计算系统用于依据井筒流动状态和采集到的实时工况参数,计算气井当前工况下将液体从井底连续携带至地面的临界携液速率;数据采集装置实现数据连续获取,积液判别与智能预警系统基于临界携液速率计算结果和实时流动参数,判断井筒是否存在积液风险,并对风险程度进行分级预警;井底积液动态清除装置用于在达到预设条件时对井底及井筒液体进行快速清除;本发明的有益效果是:形成监测‑计算‑预警‑清除‑优化协同的控制体系,可以实现井筒积液风险的及时识别、准确预警和高效清除,提高气井持续稳定生产能力。
Need to check novelty before this filing date? Find Prior Art