摘要
为确保CO2驱油井下附件材料的安全可靠,利用室内高温高压动态腐蚀评价实验来模拟CO2驱油井下附件材料的腐蚀情况,测定不同温度、压力、CO2含量条件下 45#钢材料的动态腐蚀速率.利用扫描电子显微镜(SEM)和附带X射线能谱仪(EDX)分析腐蚀试样表面腐蚀产物和形貌特征.结果表明:在本试验环境中,45#钢发生严重CO2腐蚀,在相同CO2含量条件下温度、压力高的腐蚀速率大,腐蚀产物主要是FeCO3.
In order to ensure the safety and reliability of the accessory materials in CO2 flooding oil wells,indoor high temperature and high pressure dynamic corrosion evaluation experiment was used to simulate the corrosion of accessory materials in CO2 flooding oil wells.Dynamic corrosion rates of 45#steel under different temperature,pressure and CO2 content were measured.The morphology and composition of corrosion products were characterized by scanning electron microscopy(SEM)and an attached energy dispersive x-ray spectroscopy(EDX).The results showed that in the test environment,45#steel suffered from severe CO2 corrosion,and the corrosion rate at high temperature and pressure was high under the same CO2 content,and the corrosion product was mainly FeCO3.
作者
乔琦
管英柱
刘文博
QIAO Qi;GUAN Ying-zhu;LIU Wen-bo(College of Petroleum Engineering,Yangtze University,Hubei Wuhan 430100,China)
出处
《当代化工》
CAS
2019年第10期2335-2338,共4页
Contemporary Chemical Industry
关键词
CO2腐蚀
45#钢
附件材料
腐蚀产物
CO2 corrosion
45#steel
Accessory materials
Corrosion product
作者简介
乔琦(1995-),男,河南濮阳人,硕士研究生,研究方向:采油气工艺理论,E-mail:438037420@qq.com;通讯作者:管英柱(1972-),男,副教授,博士,主要从事油气开采技术研究,E-mail:guanyzh@yangtzeu.edu.cn。
