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45#钢在CO2驱油条件下的腐蚀规律研究

Qi QIAO,Ying-zhu GUAN,Wen-bo LIU

Contemporary Chemical Industry（2019）

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Abstract
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.
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