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油田零碳注汽锅炉给水真空除氧系统优化改造
Optimization and retrofit of vacuum deaeration system for feed water in zero-carbon steam injection boilers in oilfields
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- DOI:
- 作者:
- 韩登州, 贺吉涛, 王恩卫, 张瑶, 马一歌
HAN Dengzhou, HE Jitao, WANG Enwei, ZHANG Yao, MA Yige
- 作者单位:
- 1. 中油(新疆)石油工程有限公司设计分公司, 新疆克拉玛依 834000;2. 新疆油田公司采油一厂, 新疆克拉玛依 834000;3. 中国石油大学(华东), 山东青岛 266580
1. CPECC Xinjiang Petroleum Engineering Co., Ltd., Karamay 834000, China;2. No. 1 Oil Production Plant of Xinjiang Oilfield Company, Karamay 834000, China;3. China University of Petroleum (East China), Qingdao 266580, China
- 关键词:
- 零碳注汽锅炉; 水处理; 真空除氧系统; 系统失效; 管路气密性; 优化改造
zero-carbon steam injection boiler;water treatment;vacuum deaeration system;system failure;pipeline airtightness;optimization and retrofit
- 摘要:
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新疆油田为推广零碳注汽锅炉的应用，需配套改造大量停运已久的高位真空除氧塔，以保障除氧水供给。然而，受限于站场空间与老系统条件，改造中频繁出现因除氧水外输泵与高位真空除氧塔系统设计不合理而导致的项目投运失败。以新疆油田某区域零碳注汽锅炉给水真空除氧系统改造项目为研究对象，结合现场试验及运行数据，经系统剖析找出了失效根源：一是除氧水外输泵与除氧塔之间管道距离过长且上翻较多，导致系统密封性难以保障、摩阻过大及真空度控制失效；二是外输泵参数存在虚标现象，性能不达标。针对上述问题，提出更换达标设备、重构核心设备布局、优化管路及强化系统气密性等综合优化改造方案，最终实现除氧系统成功投运。研究结果可为同类真空除氧塔系统改造的设计、施工安装及故障诊断提供理论支撑和实践路径。
To promote the application of zero-carbon steam injection boilers in Xinjiang Oilfield, a large number of long-dormant elevated vacuum deaeration towers require retrofitting to ensure the supply of deaerated water. However, due to limited station space and aging system conditions, failures frequently occur during retrofitting, primarily caused by irrational design of the deaerated water transfer pump and the elevated vacuum deaeration tower system. This study examined a retrofit project of the vacuum deaeration system for feed water in zero-carbon steam injection boilers in a specific area of Xinjiang Oilfield. Through field tests and operational data, the root causes of system failure were systematically analyzed: Firstly, the excessive pipeline distance and multiple upward bends between the transfer pump and the deaeration tower resulted in poor system sealing, excessive friction resistance, and loss of vacuum control; secondly, the performance of the transfer pump fell short of specifications due to misleading parameter claims. To address these issues, a comprehensive optimization and retrofit solution was proposed, including replacing substandard equipment, redesigning the layout of core components, optimizing pipeline routing, and enhancing system airtightness. Ultimately, the deaeration system was successfully commissioned. The research findings provide theoretical support and practical guidance for the retrofit design, installation, and fault diagnosis of similar vacuum deaeration tower systems.