海上油田水下增压泵电机冷却系统分析

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中图分类号：TE952 文献标志码：A doi：10.3969/j.issn.1001-3482.2025.04.010

Analysis of Cooling System for Subsea Booster Pump Motor in Offshore Oilfield

AN Weizheng'，WANG Yi2 ，MA Qiang1，ZHANG Rende²，DUAN Qingfeng'， DENG Zhuoyuan²，PENGHuafu²，DUQifei² （1.CNOOCResearch InstituteCo.，Ltd.，BeijingOo28，China;2.CoegeofSafetyandOcean Engineering，Cina University of Petroleum（Beijing），Beijing 102249，China）

Abstract： The subsea booster pump is the core component of the subsea booster system， which is widely used in deep-sea oil and gas exploitation，especially in scenarios such as enhanced oil recovery，long distance oil and gas transportation，and deepwater operations in old oilfields. Due to the large water depth， low wellhead fluid pressure，and long return distance，subsea booster pumps are critical to deepwater oil and gas development.The drive motor usually adopts a highly integrated permanent magnet motor. However，due to the narrow internal space of the motor and the difficultyin heat dissipation，the temperature can easily and rapidly rise，which affects the performance and life of the motor.Therefore， motor cooling becomes a critical issue in the design of subsea booster pumps.In this paper，the composition of the motor cooling system of the underwater booster pump was analyzed，and the coling was conducted by means of spacer circulation and external seawater heat exchange.The heat flux coupling of the internal and external cooling pipes of the motor was simulated by numerical methods，and the heating power of the main components of the motor was analyzed.The effects of diferent cooling schemes were evaluated.The results show that the optimized cooling system can effectively reduce the temperature rise of the motor and ensure its stable operation in the deep-sea environment.This study provides a theoretical basis for the design of the motor cooling system of the undersea booster pump and important technical support for the localization of the undersea booster system and the development of deepwater oil and gas in China.

Key words： offshore oilfield; underwater booster pump; cooling pipe; spacer

在全球油气能源发展热点逐渐向深水挺进的背景下，具有克服长距离输油管线和举升带来的压力损失、以及降低水下井口背压而提高原油产量等优点的水下增压技术被广泛应用。（剩余8691字）