电热熔盐储能注汽技术研究及实验

doi:10.3969/j.issn.1006-6535.2025.04.015

特种油气藏 ›› 2025, Vol. 32 ›› Issue (4): 130-135.DOI: 10.3969/j.issn.1006-6535.2025.04.015

电热熔盐储能注汽技术研究及实验

刘建峰¹, 张馨², 王延涛², 赵兴罡², 刘兵²

1.中国石油辽河油田分公司,辽宁盘锦 124010;
2.中国石油辽河工程有限公司,辽宁盘锦 124010

收稿日期:2025-03-21 修回日期:2025-05-16 出版日期:2025-08-25 发布日期:2025-09-03
通讯作者: 张馨(1989—),男,高级工程师,2011年毕业于大连理工大学热能与动力工程专业,2014年毕业于天津大学制冷及低温工程专业,获硕士学位,现主要从事油田注汽系统地面工程设计研究与管理工作。
作者简介:刘建峰(1982—),男,教授级高级工程师,《特种油气藏》编委会副主任,2004年毕业于石油大学(华东)油气储运工程专业,2014年毕业于西南石油大学石油与天然气工程专业,获硕士学位,现主要从事石油天然气勘探开发综合研究及油气与新能源业务管理工作。
基金资助:
中国石油科技专项“稠油大幅度提高采收率关键技术研究”(2023ZZ23YJ07);辽宁省首批产业技术创新重点攻关任务“揭榜挂帅”项目“15MW级电热熔盐储能注汽系统示范工程”(辽工信投资〔2023〕124号);辽宁省兴辽英才计划项目“电热熔盐储能注汽技术攻关”(XLYC2404003)

Research and experiment on electric thermal molten salt energy storage steam injection technology

LIU Jianfeng¹, ZHANG Xin², WANG Yantao², ZHAO Xinggang², LIU Bing²

1. PetroChina Liaohe Oilfield Company, Panjin, Liaoning 124010, China;
2. PetroChina Liaohe Petroleum Engineering Co., Ltd., Panjin, Liaoning 124010, China

Received:2025-03-21 Revised:2025-05-16 Online:2025-08-25 Published:2025-09-03

摘要/Abstract

摘要： 针对稠油注汽系统高耗能、高碳排放的问题,开展适用于稠油注汽的电热熔盐储能注汽技术研究,以实现稠油绿色开发。利用Abaqus软件模拟方法和系统综合热效率评价方法对系统工况进行优化设计,并开展现场试验。研究表明:电热熔盐储能注汽技术通过消纳绿电/谷电替代燃烧化石能源生产稠油注汽用湿饱和蒸汽的技术可行;蒸汽预热系统的蒸汽流量随蒸汽压力变化波动范围小,有利于系统稳定运行,是电热熔盐储能注汽系统的优选预热工艺;电热熔盐储能注汽系统负荷率为60%～100%时,系统综合热效率为92.61%～94.34%,且系统综合热效率随系统运行负荷的增加而提升;系统综合热效率的试验值平均数比理论计算值平均数低0.44个百分点,偏差小;与现有燃气注汽锅炉相比,试验站年产蒸汽4.8×10⁴ t,替代天然气313×10⁴ m³,CO₂减排6 768 t。该技术可为稠油注汽系统实现绿色转型发展提供技术支撑和实践指导,系统综合热效率评价方法可用于指导工程设计。

关键词: 熔盐储能, 稠油, 注汽, 系统综合热效率

Abstract: To address the problems of high energy consumption and high carbon emissions in heavy oil steam injection systems, research on electric thermal molten salt energy storage steam injection technology suitable for heavy oil steam injection was carried out to achieve green development of heavy oil. Using Abaqus software simulation methods and system comprehensive thermal efficiency evaluation methods, the system operating conditions were optimized and designed, and field tests were conducted. The study shows that the technology of using electric thermal molten salt energy storage steam injection, which utilizes green electricity/off-peak electricity to replace fossil fuel combustion for producing wet saturated steam for heavy oil steam injection, is technically feasible; the steam flow rate of the steam preheating system fluctuates within a small range with changes in steam pressure, which is conducive to stable system operation and is the preferred preheating process for electric thermal molten salt energy storage steam injection systems; when the load rate of the electric thermal molten salt energy storage steam injection system is 60%~100%, the system comprehensive thermal efficiency is 92.61%~94.34%, and it increases with increasing system operating load; the average experimental value of system comprehensive thermal efficiency is 0.44 percentage points lower than the average theoretical calculation value, indicating a small deviation; compared with existing gas-fired steam injection boilers, the test station produces 4.8×10⁴ t annually, replacing 313×10⁴ m³/a of natural gas, and reducing CO₂ emissions by 6 768 t/a. The research on this technology can provide technical support and practical guidance for the green transformation of heavy oil steam injection systems, and the system comprehensive thermal efficiency evaluation method can be used to guide engineering design.

Key words: molten salt energy storage, heavy oil, steam injection, system comprehensive thermal efficiency

中图分类号:

TE357.44

刘建峰, 张馨, 王延涛, 赵兴罡, 刘兵. 电热熔盐储能注汽技术研究及实验[J]. 特种油气藏, 2025, 32(4): 130-135.

LIU Jianfeng, ZHANG Xin, WANG Yantao, ZHAO Xinggang, LIU Bing. Research and experiment on electric thermal molten salt energy storage steam injection technology[J]. Special Oil & Gas Reservoirs, 2025, 32(4): 130-135.

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电热熔盐储能注汽技术研究及实验

Research and experiment on electric thermal molten salt energy storage steam injection technology

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