Effect of Solid Inhibitor on CO2 Corrosion Behavior for Sucker Rod
摘 要
为了减缓采油过程中金属装备的CO2腐蚀,有针对性地研制了两种固体缓蚀剂。通过极化曲线,电化学阻抗谱、滴定法对研制的固体缓蚀剂的缓蚀率和缓释效果进行评价。结果表明: 固体缓蚀剂A为孔隙释放型固体缓蚀剂,固体缓蚀剂B为溶解释放型固体缓蚀剂,两种固体缓蚀剂均可满足油井采出液环境中采油装备CO2腐蚀控制的需求。
Abstract
In order to slow down the CO2 corrosion of metal equipment during the process of oil production, two kinds of solid inhibitors were investigated. Polarization curve, electrochemical imperdance spectroscopy and titration method were used to evaluate the inhibition efficiency and effectiveness of the solid inhibitor. The results showed that solid inhibitor A was a pore-release solid inhibitor, and solid inhibitor B was a dissolution-release solid corrosion inhibitor. Both the two solid inhibitors can meet the needs of CO2 corrosion for oil production equipment in oil well environment.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201605012
所属栏目 试验研究
基金项目 山东省优秀中青年科学奖奖励基金(BS2010NJ025)
收稿日期 2015/12/13
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备注唐 晓(1978-),副教授,博士,从事油气装备腐蚀与防护研究
引用该论文: SHI Ming-hua,WANG Xu-dong,TANG Xiao. Effect of Solid Inhibitor on CO2 Corrosion Behavior for Sucker Rod[J]. Corrosion & Protection, 2016, 37(5): 402
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参考文献
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【2】NEWTON L. CO2 corrosion in oil and gas production[C]//Houstaon Texas: NACE,1984.
【3】胡云鹏. 固体缓蚀剂的研制与应用[C]//第十二届全国缓蚀学术讨论会论文集. 武汉: 华中科技大学,2001: 301-305.
【4】黄红兵,刘友家,艾天敬. 水溶性棒状缓蚀剂CT2-14的研究及应用[J]. 石油天然气化工,2000(4): 191-195.
【5】赵明宸,彭绪勇,孔金,等. 长效缓蚀剂DX-1的研制[J]. 油田化学,2003(6): 133-135.
【6】杨怀玉,祝英剑. IMC系列缓蚀剂研究及在我国油气田的应用[J]. 油田化学,1999,16(3): 273-277.
【7】沈长斌,薛钰芝,陶晓杰,等. 微胶囊技术制备缓释型咪唑啉类缓蚀剂[J]. 大连铁道学院学报,2004,3(1): 89-92.
【8】刘鹤霞,刘学勤,李勃,等. 耐油田污水腐蚀的HF涂料[J]. 材料保护,1996,29(6): 25-26.
【9】AZHAR M E,MERNARI B,TRAISNEL M. Corrosion inhibition of mild steel by the new class of inhibitors[2,5-bis (n-pyridyl)-1,3,4-thiadiazoles] in acidic media[J]. Corrosion Science,2001(43): 2229-2238.
【10】郭清元,王红茹,储继松. 油井缓蚀剂的常规室内评价方法论述[J]. 内江科技,2011(12): 146-149.
【11】LOPEZ D A,SIMISON S N,SANCHEZ S R. The influence of steel microstructure on CO2 corrosion. EIS studied on the inhibition efficiency of benzimidazole[J]. Electrochim Acta,2003(48): 845-854.
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