20钢和16Mn钢在模拟CO_2驱环境的腐蚀电化学行为
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摘要
为提供CO_2驱油环境中地面管线钢的选材依据,通过动电位极化曲线和交流阻抗谱研究了20钢、16Mn钢在模拟CO_2驱溶液中的腐蚀电化学行为,并对数据进行了拟合分析。结果表明:在饱和CO_2条件下,20钢在低温阶段易形成具有保护性的产物膜,而随着温度逐渐升高,产物膜变的疏松,腐蚀加剧; 16Mn钢在中低温阶段,随着温度的升高,腐蚀加剧,饱和的CO_2极大地促进了腐蚀的发生。
In order to provide material selection basis for ground pipeline steel in CO_2 flooding environment,the electrochemical corrosion behavior of 20 steel and 16 Mn steel in simulated CO_2 flooding solution was studied by potential dynamic polarization curve and AC impedance spectroscopy and the data were fitted and analyzed. The results show that,20 steel is easy to form protective film at low temperature under the condition of saturated CO_2,and with temperature increasing,product film becomes loose and corrosion increases. With temperature rise,corrosion of 16 Mn steel intensified in the low temperature stage. Saturated CO_2 greatly promoted occurrence of corrosion.
In order to provide material selection basis for ground pipeline steel in CO_2 flooding environment,the electrochemical corrosion behavior of 20 steel and 16 Mn steel in simulated CO_2 flooding solution was studied by potential dynamic polarization curve and AC impedance spectroscopy and the data were fitted and analyzed. The results show that,20 steel is easy to form protective film at low temperature under the condition of saturated CO_2,and with temperature increasing,product film becomes loose and corrosion increases. With temperature rise,corrosion of 16 Mn steel intensified in the low temperature stage. Saturated CO_2 greatly promoted occurrence of corrosion.
引文
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2王维波,余华贵,杨红,等.低渗透裂缝性油藏CO2驱两级封窜驱油效果研究[J].油田化学,2017,34(1):69-73Wang Weibo,Yu Huagui,Yang Hong,et al.Effect of two-stage sealing gas channeling and flooding in low permeability fracture reservoirs during CO2 flooding[J].Oilfield Chemistry,2017,34(1):69-73
3秦积舜,韩海水,刘晓蕾.美国CO2驱油技术应用及启示[J].石油勘探与开发,2015,42(2):209-216Qin Jishun,Han Haishui,Liu Xiaolei.Application and enlightenment of carbon dioxide flooding in the United States of America[J].Petroleum exploration and development,2015,42(2):209-216
4周丽艳,崔长勇,李伊莎.采用挖沙换水措施解决鄂尔多斯水资源短缺[J].人民黄河,2014,36(9):73-75Zhou Liyan,Cui Changyong,Li Yisha.Dredging measures to solve the shortage of water resources in Ordos region[J].Yellow River,2014,36(9):73-75
5王宝林,何先富,从丽娟.鄂尔多斯盆地(内蒙古地区)能源开发水资源承载力分析[J].地下水,2012,34(4):129-130Wang Baolin,He Xianfu,Cong Lijuan.Analysis of water resources carrying capacity of energy development in Ordos Basin(Inner Mongolia)[J].Ground Water,2012,34(4):129-130
6郝敏,宋永臣.利用CO2提高石油采收率技术研究现状[J].钻采工艺,2009,33(4):59-63Hao Min,Song Yongcheng.Research status of using CO2 to improve oil recovery technology[J].China Chemical Trade,2009,33(4):59-63
7张英芝,杨铁军,杨正明,等.榆树林油田特低渗透扶杨油层CO2驱油效果评价[J].科技导报,2015,33(5):52-56Zhang Yingzhi,Yang Tiejun,Yang Zhengming,et al.Evaluation of oil displacement by CO2 at fuyang extra-low permeability layer in Yushulin Oilfield[J].Science&Technology Review,2015,33(5):52-56
8尹志福,杨志刚,张永强,等.CO2驱油产出水对J55钢油管腐蚀行为的影响及水质分析[J].材料保护,2013,46(10):55-57Yin Zhifu,Yang Zhigang,Zhang Yongqiang,et al.Effect of water produced with carbon dioxide flooding on corrosion behavior of low carbon steel oil pipe and analysis of quality of the water[J].Journal of Materials Protection,2013,46(10):55-57
9 Cole I S,Corrigan P,Sim S.Corrosion of pipelines used for CO2transport in CCS:Is it a real problem?[J].International Journal of Greenhouse Gas Control,2011,5(4):749-756
10 Adsani E,Shirazi S A,Shadley J R.CO2 corrosion rate prediction in vertical multiphase flow[J].SPE Production&Operations,2005,15:133-136
11 Balostro V,Restelli A,Gabetta G.Comparison of models for CO2corrosion prediction and their application to field cases[J].Metallurgical Itallian,2012,104(10):37-43
12相璟瑞,罗东坤,魏丹.基于典型集输管线腐蚀状况的防腐措施经济性评价[J].安全与环境学报,2013,13(5):207-211Xiang Jingrui,Luo Dongkun,Wei Dan.Economic evaluation of anticorrosion measures based on the corrosion conditions analysis of typical transportation pipelines[J].Journal of Safety and Environment,2013,13(5):207-211
13宋文明,杨贵荣,冯萍萍,等.20钢在CO2/水溶液气液两相流液相中的腐蚀行为[J].材料热处理学报,2016,37(9):118-123Song Wenming,Yang Guirong,Feng Pingping,et al.Corrosion behavior of 20 steel in liquid medium of gas-liquid(CO2-water)stratified flow[J].Transactions of Materials and Heat Treatment,2016,37(9):118-123
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