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Influence Factors of Under-Deposit Corrosion and Corrosion Prevention in Oil Wells

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  • 1.Laboratory Center,YanChang Oil Field Co.,Ltd.,Yan’an 716001,China; 2.School of Chemistry and Chemical Engineering,Xi’an Shiyou University,Xi’an 710065,China

Received date: 2022-09-21

  Revised date: 2022-10-17

  Accepted date: 2022-11-20

  Online published: 2023-03-15

Abstract

In order to ensure the safe production of the oil field,scanning electron microscopy (SEM) and X-ray diffraction (XRD),combined with wire beam electrodes,were used to observe the corrosion morphology and analyze the corrosion products under the scale in accordance with the actual operating conditions of an oil field in northern Shaanxi.The influence mechanism of Cl-,CO2 and O2 on corrosion under scale was explored by polarization curve and electrochemical impedance spectroscopy,and the corrosion inhibition performance of corrosion inhibitors on corrosion under scale was clarified.Results showed that Cl-,CO2 and O2 could easily penetrate the scale layer and reach the surface of the metal substrate to form corrosion cells,which increased the corrosion tendency.The corrosion inhibitor CH-1 had a small adsorption capacity on the scale sample surface,and had a strong anodic inhibition effect on the corrosion under scale.It could achieve the corrosion inhibition effect through negative catalytic effect,and had good corrosion inhibition performance under scale.

Cite this article

XU Jiang-feng, HAO Jian, LI Li, LI Zheng-hui, LI Lin, YING Hu-hu, MENG Zu-chao . Influence Factors of Under-Deposit Corrosion and Corrosion Prevention in Oil Wells[J]. Materials Protection, 2023 , 56(3) : 159 -165 . DOI: 10.16577/j.issn.1001-1560.2023.0072

References

[1] 李国敏,李爱魁,郭兴蓬,等.油气田开发中的CO2腐蚀及防护技术[J].材料保护,2003,36(6):1-5.LI G M,LI A K,GUO X P,et al.CO2 Corrosion and Protection Technology in Oil and Gas Field [J].Materials Protection,2003,36(6): 1-5.

[2] 刘 伟,蒲晓林,白小东,等.油田硫化氢腐蚀机理及防护的研究现状及进展[J].石油钻探技术,2008,36(1):83-86.LIU W,PU X L,BAI X D,et al.Development of Hydrogen Sulfide Corrosion and Prevention[J].Petroleum Drilling Technioues,2008,36(1): 83-86.

[3] 刘宏伟,陈翠颖,张雨轩,等.油气田微生物腐蚀与防护研究进展[J].装备环境工程,2020,17(11):1-9.LIU H W,CHEN C Y,ZHANG Y X,et al.Research Progress of Microbial Corrosion and Protection in Oil and Gas Fields[J].Equipment Environmental Engineering,2020,17(11): 1-9.

[4] 艾芳芳,陈义庆,钟 彬,等.T95 油井管在酸性油气田环境中的应力腐蚀开裂行为及机制[J].中国腐蚀与防护学报,2020,40(5):469-473.AI F F,CHEN Y Q,ZHONG B,et al.Stress Corrosion Cracking Behavior of T95 Oil Well Pipe Steel in Sour Environment[J].Journal of Chinese Society for Corrosion and Protection,2020,40(5): 469-473.

[5] 殷雪峰,莫少明,韩 磊,等.2205 双相不锈钢在NH4Cl垢下腐蚀行为研究[J].石油化工腐蚀与防护,2015,32(3):12-16.YIN X F,MO S M,HAN L,et al.Study on NH4Cl Underdeposit Corrosion Behavior of 2205 Duplex Stainless Steel[J].Corrosion & Protection in Petrochemical Industry,2015,32(3): 12-16.

[6] 王 琳,范玉然,何金昆.某输油管道腐蚀穿孔失效原因分析[J].焊管,2022,45(3):50-56.WANG L,FAN Y R,HE J K,Corrosion Perforation Failure Analysis of Oil Pipeline[J].Welded Pipe and Tube,2022,45(3): 50-56.

[7] LIU W,DOU J J,LU S L,et al.Effect of silty sand in formation water on CO2 corrosion behavior of carbon steel[J].Applied Surface Science,2016,367:438-448.

[8] WANG X,MELCHERS R E.Long-term under-deposit pitting corrosion of carbon steel pipes[J].Ocean Engineering,2017,133:231-243.

[9] 韩 霞,杨 军,王子明,等.Q235 钢在油田污水处理系统中的垢下腐蚀行为[J].腐蚀与防护,2020,41(2):14-18.HAN X,YANU J,WANG Z M,et al.Under-Deposit Corrosion Behavior of Q235 Steel in Oilfield Water Treatment System[J].Corrosion & Protection,2020,41(2): 14-18.

[10] 朱元良,姬鄂豫,邱于兵,等.用闭塞电池研究月桂酸根离子抑制碳钢垢下腐蚀的机理[J].腐蚀与防护,2010,31(2):111-114.ZHU Y L,JI E Y,QIU Y B,et al.Under-deposit Occluded Cell Corrosion Inhibition Mechanism of N80 Steel in NaCl Solution with Sodium Laurate[J].Corrosion & Protection,2010,31(2): 111-114.

[11] 闻小虎,石 鑫,吴雨乐,等.基于WBE 阻抗技术研究缓蚀剂对碳钢管道垢下腐蚀的抑制行为[J].材料保护,2021,54(12):42-48.WEN X H,SHI X,WU Y L,et al.Research on the inhibition behavior of inhibitor on under-deposit corrosion of carbon steel based on synergistic WBE impedance method[J].Materials Protection,2021,54(12): 42-48.

[12] ZHANG G A,YU N,YANG L Y,et al.Galvanic corrosion behavior of deposit-covered and uncovered carbon steel[J].Corrosion Science,2014,86(9):202-212.

[13] LIU H,ZHONG X,LIU H,et al.Microbiologically-enhanced galvanic corrosion of the steel beneath a deposit in simulated oilfield-produced water containing Desulfotomaculum nigrificans [J].Electrochemistry Communications,2018,90:1-5.

[14] 程海鹏,王东江.氧浓差电池在油井的腐蚀机理[J].石油化工腐蚀与防护,2014,31(1):46-49.CHENG H P,WANG D J.Corrosion Mechanisms of Oxygen Concentration Cell in Oil Wells[J].Corrosion & Protection in Petrochemical Industry,2014,31(1): 46-49.

[15] HE L M,XU Y Z,WANG X N,et al.Understanding the Propagation of Nonuniform Corrosion on a Steel Surface Covered by Marine Sand[J].Corrosion,2019,75(12):1 487-1 501.

[16] TAN Y J,AUNG N N,LIU T.Evaluating localised corrosion intensity using the wire beam electrode[J].Corrosion Science,2012,63(1): 379-386.

[17] BASIONY N M E,ELGENDY A,EL-TABEY A E,et al.Synthesis,characterization,experimental and theoretical calculations (DFT and MC) of ethoxylated aminothiazole as inhibitor for X65 steel corrosion in highly aggressive acidic media[J].Journal of Molecular Liquids,2020,297:111 940.

[18] POPOVA A,SOKOLOVA E,RAICHEVA S,et al.AC and DC study of the temperature effect on mild steel corrosion in acid media in the presence of benzimidazole derivatives[J].Corrosion Science,2003,45(1): 33-58.

[19] SOMASUNDARAN P,AGAR G E.The zero point of charge of calcite[J].Journal of Colloid and Interface Science,1967,24(4):433-440.

[20] 李杨勇,李恒娟,刘 玲,等.一种高效盐酸酸化缓蚀剂的性能评价[J].当代化工,2014,3(8):1 437-1 439.LI Y Y,LI H J,LIU L,et al.Performance Evaluation of Efficient Hydrochloric Acid Acidification Corrosion Inhibitor[J].Contemporary Chemical Industry,2014,3(8):1 437-1 439.

[21] 蒋 平,赵力云,万朝晖,等.喹啉型季铵盐缓蚀性能评价[J].油田化学,2011,28(2):219-223.JIANG P,ZHAO L Y,WAN Z H,et al.Researches on Inhibiting Action of Quinolinic Quatermary Ammonium Salts[J].Oilfield Chemistry,2011,28(2): 219-223.

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