A synergistic experimental and computational study on CO2 corrosion of X65 carbon steel under dispersed droplets within oil/water mixtures
作者机构：Key Laboratory of Marine Environmental Corrosion and Bio-Fouling Institute of Oceanology Chinese Academy of Sciences School of Mechanical and Electrical Engineering China University of Petroleum(East China) Corrosion and Integrity Centre Zhejiang JIULI Hi-Tech Metals Co.Ltd Qingdao Sifang Kawasaki Rollingstock Technology Co. Ltd
出 版 物：《Corrosion Communications》 (腐蚀学报(英文))
年 卷 期：2023年第12卷第4期
页 面：64-75页
核心收录：
学科分类：0820[工学-石油与天然气工程] 08[工学]
基 金：financially supported by the National Natural Science Foundation of China (No. 52301114) the Natural Science Foundation of Shandong Province (ZR2021QE036) the Huzhou Key Research and Development Program (No. 2023ZD2001)
主 题：Carbon steel CO 2 corrosion Dispersed droplet Oil/water flow COMSOL
摘 要：The CO2corrosion behaviour of X65 carbon steel under water-in-oil droplet and oil-in-water droplet was systematically investigated by a combination of scanning electron microscopy, Raman spectroscopy, NPFLex3D and COMSOL simulation. Under the water-in-oil droplet, the formation of crystalline FeCO3can be contributed to the high concentration of Fe2+and CO32-, and the short diffusion path near the droplet edge promotes FeCO3precipitation. Under the oil-in-water droplet, corrosion islands caused by the invasion of water can be found,indicating that the small water droplets emphasised the development of localized corrosion underneath the oil droplet.
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