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不同腐蚀介质中改性咪唑啉的缓蚀性能
引用本文:马涛,张贵才,葛际江,蒋平,汤达祯.不同腐蚀介质中改性咪唑啉的缓蚀性能[J].西南石油大学学报(社会科学版),2009,30(1):137-139.
作者姓名:马涛  张贵才  葛际江  蒋平  汤达祯
作者单位:1.中国地质大学能源学院,北京 100083;2.中国石油大学石油工程学院,山东 东营 257017
摘    要:由油酸、多胺及改性试剂合成了4种咪唑啉衍生物。通过静态挂片失重法评价了咪唑啉缓蚀剂在不同矿化度的模拟盐水、饱和CO2的模拟盐水以及油田回注污水中对A3碳钢腐蚀的抑制作用。实验结果表明,所合成的咪唑啉缓蚀剂可以抑制溶解氧的腐蚀,对CO2的腐蚀抑制效果更好,10mg/L缓蚀剂D缓蚀率达95.36%。腐蚀介质的矿化度对缓蚀效果有一定影响,矿化度在10000~70000mg/L变化时,缓蚀率波动在10%~15%。油田回注污水实验表明咪唑啉型缓蚀剂适合应用于现场,尤其是偏酸性水质,腐蚀速率满足小于0.076mm/a的油田标准。

关 键 词:缓蚀剂    咪唑啉    腐蚀介质    缓蚀性能    油田
收稿时间:2007-03-06

The Corrosion Inhibition Performance of Modified Imidazoline in Different Corrosion Medium
MA Tao ZHANG Gui-cai GE Ji-jiang JIANG Ping TANG Da-zhen.The Corrosion Inhibition Performance of Modified Imidazoline in Different Corrosion Medium[J].Journal of Southwest Petroleum University(Social Sciences Edition),2009,30(1):137-139.
Authors:MA Tao ZHANG Gui-cai GE Ji-jiang JIANG Ping TANG Da-zhen
Institution:1.School of Energy Resources,China University of Geosciences,Beijing 100083,China;2.School of Petroleum Engineering,China University of Petroleum,Dongying Shandong 257017,China
Abstract:Four imidazoline derivatives are synthesized from oleic acid,multi-amine and modifiers.The corrosion inhibition action to A3 steel of imidazoline corrosion inhibitor is investigated by weight-loss measurement,the corrosion mediums are simulated brine with different salinity,simulated brine being saturated with carbon dioxide and re-injected produced water of oilfield.The results of experiment indicate that the imidazoline inhibitors can inhibit the corrosion of dissolved oxygen and that the inhibition effect to CO2 corrosion is better than that to dissolved oxygen,the corrosion inhibition rate is 95.36% when the concentration of inhibitor D is 10mg/L.The corrosion inhibition rate changes between 10% to 15% when the mineralization of water changes from 10000mg/L to 70000mg/L.The result of re-injected produced water experiment shows that the imidazoline corrosion inhibitors are suitable for oil field and especially acidity water,the corrosion rate is less 0.076mm/a than the oil field criterion.
Keywords:fcorrosion inhibitor                                                                                                                        imidazoline                                                                                                                        corrosion medium                                                                                                                        corrosion inhibition performance                                                                                                                        oilfield
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