油田产出水中饱和CO2和SRB共存条件下十二胺缓蚀剂的缓蚀行为
Inhibition Behavior of Dodecylamine Inhibitor in Oilfield Produced Water Containing Saturated CO2 and SRB
摘 要
采用电化学阻抗谱、动电位极化、失重及超景深三维立体显微镜观察,研究了饱和CO2和硫酸盐还原菌(SRB)共存条件下十二胺缓蚀剂对20号钢的短期缓蚀行为.结果表明,无SRB存在条件下,缓蚀剂的缓蚀率高达95.8%.接种10% SRB恒温培养11 d后,当缓蚀剂浓度低于20 mg/L时,无缓蚀效果;当缓蚀剂浓度达到100 mg/L时,缓蚀效果最好,失重数据表明缓蚀剂的缓蚀率可以达到85.2%.不同体系的SRB菌量测定结果表明,缓蚀剂对SRB具有一定的毒性作用,可以显著抑制SRB的生长.去除腐蚀产物的形貌表明,SRB和CO2共存时试样以均匀腐蚀为主,局部有明显的点蚀;加入100 mg/L缓蚀剂后,试样腐蚀较轻,以少量的点蚀为主.
十二胺
缓蚀剂
腐蚀
SRB
dodecylamine
corrosion inhibitor
corrosion
Abstract
The short-term corrosion inhibition performance of dodecylamine for 20# carbon steel in the presence of saturation CO2 and sulfate-reducing bacteria (SRB) was investigated by electrochemical impedance spectroscopy (EIS),potentiodynamic polarization,weight loss method and three-dimensional stereogram.The results showed that the corrosion inhibitor exhibited high inhibition efficiency,reaching 95.8% in the absence of SRB.After inoculating 10% SRB and cultivating for 11 days at stationary temperature,when the concentration of corrosion inhibitor was less than 20 mg/L,the corrosion inhibition performance was worse;when the concentration of corrosion inhibitor reached 100 mg/L,the inhibition efficiency could reach 85.2% depending on weight loss method.The SRB content measurements indicated that the corrosion inhibitor had toxicity for SRB and could inhibit the growth of SRB.The corrosion morphology of specimens indicated that the specimen produced uniform corrosion accompanied by pitting corrosion in the presence of SRB and CO2;when adding 100 mg/L corrosion inhibitor,the corrosion of specimen was lighter,and accompanied by a little pitting corrosion.
中图分类号 TG174.42
所属栏目 缓蚀剂专题
基金项目 国家自然科学基金(51171067);深圳市基础研发基金(JC201005310696A)
收稿日期 2014/6/11
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备注刘宏芳(1968-),教授,博士,从事微生物腐蚀、环境化学和应用电化学研究.
引用该论文: LIU Hong-wei,ZHANG Fan,WU Ya-nan,TAO Yin-Guang,ZHANG Lu,LIU Hong-fang. Inhibition Behavior of Dodecylamine Inhibitor in Oilfield Produced Water Containing Saturated CO2 and SRB[J]. Corrosion & Protection, 2015, 36(2): 137
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参考文献
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【2】LIN Y,ZHU D,ZENG D Z,et al.Experimental studies on corrosion of cement in CO2 injection wells under supercritical conditions[J].Corrosion Science,2013,74:13-21.
【3】PFENNIG A,WIEGAND R,WOLF M,et al.Corrosion and corrosion fatigue of AISI 420C (X46Cr13) at 60 ℃ in CO2-saturated artificial geothermal brine[J].Corrosion Science,2013,68:134-143.
【4】BEECH I B,GAYLARDE C C.Recent advances in the study of biocorrosion:An overview[J].Revista De Microbiologia,1999,30(3):117-190.
【5】DICKINSON W,LEWANDOWSKI Z.Manganese biofouling and the corrosion behavior of stainless steel[J].Biofouling,1996,10(1/3):79-93.
【6】刘宏芳,许立铭.硫酸盐还原菌生物膜下钢铁腐蚀研究概况[J].油田化学,2000,17(1):93-96.
【7】ZHANG G A,CHENG Y F.Corrosion of X65 steel in CO2 saturated oilfield formation water in the absence and presence of acetic acid[J].Corrosion Science,2009,51(8):1589-1595.
【8】NEWMAN R C,WEBSTER B J,KELLY R G.The electrochemistry of SRB corrosion and related inorganic phenomena[J].ISIJ International,1991,31(2):201-209.
【9】BEECH IB,SUNNER J.Biocorrosion:Towards understanding interactions between biofilms and metals[J].Current Opinion in Biotechnology,2004,15(3):181-186.
【10】WANG H,HU C,HU X,et al.Effects of disinfectant and biofilm on the corrosion of cast iron pipes in a reclaimed water distribution system[J].Water Research,2012,46(4):1070-1078.
【11】FAN M M,LIU H F,DONG Z H.Microbiologically influenced corrosion of X60 carbon steel in CO2-saturated oilfield flooding water[J].Materials and Corrosion,2013,64(3):242-246.
【12】MONTICELLI C,FRIGNANI A,TRABANELLI G.Corrosion inhibition of steel in chloride-containing alkaline solutions[J].Journal of Applied Electrochemistry,2002,32(5):527-535.
【13】VEDAPRIYA P,KATERINA L,STUART I,et al.Evaluation of corrosion inhibition at sand-deposited carbon steel in CO2-saturated brine[J].Corrosion Science,2013,72:108-117.
【14】JEVREMOVIC I,SINGER M,NESIC S,et al.Inhibition properties of self-assembled corrosion inhibitor talloil diethylenetriamine imidazoline for mild steel corrosion in chloride solution saturated with carbon dioxide[J].Corrosion Science,2013,77:265-272.
【15】尹成先,兰新哲,冯耀荣,等.在高CO2和Cl-环境中硫脲的缓蚀行为及其对复配缓蚀剂性能的影响[J].腐蚀科学与防护技术,2006,18(5):334-336.
【16】张茜,陈振宇,郭兴蓬.十二胺在碳钢表面的吸附行为[J].中国腐蚀与防护学报,2007,27(5):288-291.
【17】鲁照玲,邱于兵,郭兴蓬.pH值对十二胺在碳钢表面的吸附行为及缓蚀机理的影响(英文)[J].物理化学学报,2008,24(2):1.
【18】NIU L,CHENG Y F.Synergistic effects of fluid flow and sand particles on erosion-corrosion of aluminum in ethylene glycol-water solutions[J].Wear,2008,265(3):367-374.
【19】WANG B,DU M,ZHANG J,et al.Electrochemical and surface analysis studies on corrosion inhibition of Q235 steel by imidazoline derivative against CO2 corrosion[J].Corrosion Science,2011,53(1):353-361.
【20】柳伟,赵艳亮,路民旭.SRB和CO2共存环境中X60管线钢腐蚀电化学特征[J].物理化学学报,2008,24(3):309-399.
【21】DUNCAN K,PEREZ-IBARRA B M,JENNEMAN G,et al.The effect of corrosion inhibitors on microbial communities associated with corrosion in a model flow cell system[J].Applied Microbiology and Biotechnology,2014,98(2):907-918.
【22】DE ROMERO M F,DUQUE Z,DE RINCON O T,et al.Microbiological corrosion:Hydrogen permeation and sulfate-reducing bacteria[J].Corrosion,2002,58(5):429-435.
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