油水混输管道CO_(2)腐蚀特性研究进展  

Corrosion characteristics of transportation pipelines in oil-water emulsion with CO_(2):A review

作　　者：付璇 邢晓凯[1,2,3] 李欣泽 FU Xuan;XING Xiaokai;LI Xinze(College of Mechanical and Transportation Engineering,China University of Petroleum(Beijing),Beijing 102249,China;School of Engineering,China University of Petroleum(Beijing)at Karamay,Xinjiang,Karamay 834000,China;Xinjiang Key Laboratory of Multi-Medium Pipeline Safety Transportation,Urumqi 830000,Xinjiang,China)

机构地区：[1]中国石油大学(北京)机械与储运工程学院,北京102249 [2]中国石油大学(北京)克拉玛依校区工学院,新疆克拉玛依834000 [3]新疆多介质管道安全输送重点实验室,新疆乌鲁木齐830000

出　　处：《化工进展》2024年第10期5353-5368,共16页Chemical Industry and Engineering Progress

基　　金：新疆维吾尔自治区2023年度自然科学基金面上项目;克拉玛依市创新环境建设计划(创新人才)(20232023hjcxrc0039)。

摘　　要：CO_(2)油水混输管道所处的酸性环境极易引起管道内腐蚀,成为限制二氧化碳捕集与驱油封存技术发展的关键问题之一。目前,油水体系CO_(2)腐蚀行为研究已经成为管道安全和低碳技术领域广泛关注的重点问题。本文着眼于油水体系中钢材的CO_(2)腐蚀行为,分析总结了油水共存环境中CO_(2)腐蚀的行为特点和研究方法,比较了实验研究常用装置的优缺点及其腐蚀速率的表征方法,系统阐述了油气水多相环境中流动条件、水相组成、乳状液含水率及稳定性、流动形态和腐蚀产物膜等环境和组成条件对CO_(2)腐蚀行为的作用规律及腐蚀速率定量表征模型的发展现状。总体来看,对油水体系中CO_(2)腐蚀行为影响因素的定性分析和定量表征正逐步深入,但油相组成及乳状液微观形态与腐蚀速率的关联性仍不明确,可在现有宏观装置中耦合在线粒度分析仪等微观仪器进行原位数据采集,探究原油组成、界面润湿特性、乳状液微观结构及反相点等油相因素对CO_(2)腐蚀速率及产物膜性质的影响机理,建立考虑油相和乳状液特性的普适性腐蚀速率机理模型并逐步应用于工程实践。The multiphase transport pipelines with oil and water are extremely susceptible to internal corrosion in the acidic environment with CO_(2),which has become one of the key issues limiting the development of CO_(2) capture and storage by the enhanced oil recovery technology.At present,the study of CO_(2) corrosion behavior in oil-water system has become a hot issue widely focused on the field of pipeline safety and low carbon technology.Focusing on CO_(2) corrosion behavior of steel in oil-water system,this paper summarized the behavior characteristics and research methods of CO_(2) corrosion and compared the advantages and disadvantages of the commonly used experimental research apparatus and the characterization methods of corrosion rate.In addition,the effects of flow conditions,composition of water phase,water cut and stability of emulsion,flow pattern and corrosion product film on CO_(2) corrosion and Engineering Progress,2024,43(10):5353-5368.behavior and the development of corrosion rate model in oil-gas-water multiphase environment were systematically described.Overall,the qualitative analysis and quantitative characterization of the CO_(2)corrosion factors in oil-water systems are gradually deepening.However,the correlation of the composition of oil phase and the microscopic morphology of emulsion with the corrosion rate is still unclear.In situ data collection can be carried out by coupling micro-instruments such as Focused Beam Reflectance Measurement in the existing macro apparatus.The effects of crude oil composition,interfacial wettability properties,emulsion microstructure and reversed-phase point on the CO_(2) corrosion rate and film properties should be investigated.A general corrosion rate mechanism model considering the oil phase and emulsion characteristics are supposed to be established and gradually applied to engineering practice.

关 键 词：CO_(2)腐蚀 油水乳状液 腐蚀速率 集输管道 实验研究 

分 类 号：TE832[石油与天然气工程—油气储运工程]