高温环境下模拟CO_(2)驱采出液中304不锈钢的腐蚀行为  

Corrosion behavior of 304 stainless steel in CO_(2)flooding simulated production liquid at high temperature

作　　者：王超[1] 王佳秋 王艳娟 杜星璇 张博帆 WANG Chao;WANG Jia-qiu;WANG Yan-juan;DU Xing-xuan;ZHANG Bo-fan(Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology,Daqing Normal University,Daqing 163712,China)

机构地区：[1]大庆师范学院,黑龙江省油田应用化学与技术重点实验室,黑龙江大庆163712

出　　处：《化学工程师》2024年第5期103-106,共4页Chemical Engineer

基　　金：黑龙江省大学生创新创业训练计划(202210235035)。

摘　　要：现阶段随着CO_(2)驱油技术的普遍使用,采出液中CO_(2)的含量不断上升,使得采出系统中金属管道的腐蚀程度逐渐增大。为了掌握304不锈钢在高温环境下CO_(2)驱采出液中的腐蚀行为,室内配制了模拟CO_(2)驱采出液,测试了304不锈钢在高温环境下不同含量CO_(2)、不同腐蚀时间下的金属腐蚀速率,并对不同腐蚀时间下金属表面的微观形貌和腐蚀产物组成进行了表征。结果表明,随着CO_(2)含量和腐蚀时间的不断上升,金属的腐蚀速率上升;随着腐蚀时间的上升,金属表面的腐蚀产物逐渐增加,发生了局部区域析氢腐蚀过程;腐蚀产物膜主要由Fe_(2)O_(3)、Cr_(2)O_(3)和FeCO_(3)组成。With the widespread use of CO_(2)flooding technology,the increasing CO_(2)content in the produced liquid makes the corrosion degree of metal pipes in the production system increase.In order to study the corrosion behavior of 304 stainless steel in the simulated CO_(2)flooding produced liquid under high temperature environment.the corrosion rate of 304 stainless steel was tested under different CO_(2)content and different corrosion time in the simulated production liquid.The micro-morphology of the metal surface and the composition of corrosion products were tested under different corrosion time.The results showed that the corrosion rate of metal increased with the increasing of CO_(2)content and corrosion time.With the increase of corrosion time,the corrosion products on the metal surface gradually increased,and the local hydrogen evolution corrosion process occurred.The corrosion product film is mainly composed of Fe_(2)O_(3),Cr_(2)O_(3)and FeCO_(3).

关 键 词：CO_(2)驱油 304不锈钢 腐蚀 采出液 高温 

分 类 号：TG174.4[金属学及工艺—金属表面处理]