一种深水生产立管系统

The deep-water production riser system, designed with a multi-layered composite structure and an internal closed heating circuit, solves the problems of reliability and annular leakage monitoring in electric heating systems, achieving stable operation and efficient heating, reducing electromagnetic interference and corrosion risks, and extending system life.

CN122407879APending Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (BEIJING)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing deepwater production riser systems suffer from poor reliability of electric heating systems, severe electromagnetic interference, delayed annular leakage monitoring, and a high risk of seawater intrusion, which affect system safety and service life.

Method used

The deep-water production riser system adopts a multi-layer composite structure, integrating electric heating, distributed fiber optic temperature monitoring, and annular space visualization monitoring. Through an internal closed heating circuit and multiple electrical protection designs, it achieves stable operation of electric heating and real-time visualization monitoring of the annular space status.

Benefits of technology

It improves the operational safety and service life of deepwater production riser systems in extreme environments, reduces electromagnetic interference and corrosion risks, achieves efficient heating and early leak detection, and supports convenient maintenance.

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Abstract

本发明公开了一种深水生产立管系统,属于海洋工程装备技术领域。该系统包括深水生产立管本体、一体式端部接头和电加热配件箱三部分,深水生产立管本体采用多层复合结构,内部形成封闭环空区域;一体式端部接头实现各层结构的固定与连接,内部开设与环空连通的环空通道;电加热配件箱集成供电、温控和温度监测模块,采用骨架层作为去程导体、抗拉铠装层作为回程导体的内部闭合加热回路,实现高效电加热与低电磁辐射。本发明同时具备高效电加热、实时环空监测、多重电气防护功能,显著提升了深水生产立管系统的运行安全性和使用寿命,适用于深水及超深水油气输送场景。
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