哈萨克斯坦K油田注水管的腐蚀机理及防护措施
Corrosion Behavior and Protection Measures of Water Injection Pipe in Kazakhstan K Oilfield
摘 要
采用失重法、SEM/EDS、XPS以及电化学测试研究了N80、1Cr和3Cr钢在模拟哈萨克斯坦K油田注水井中的腐蚀机理，并根据不同材料的耐腐蚀性能和经济成本进行了选材比较分析。结果表明，三种材料中，N80钢的耐蚀性最差，3Cr钢耐蚀性最好。与N80钢相比，1Cr和3Cr钢表面的腐蚀产物提高了其耐蚀性。由曼尼希碱与阻垢剂复配的缓蚀剂D和N80钢的组合在模拟环境中拥有最好的耐蚀性。管道材料换用低合金钢能够满足现场要求并且经济收益更好。
N80钢
低合金钢
电化学
corrosion of water injection well
N80 steel
low alloy steel
electrochemistry
Abstract
The corrosion mechanisms of N80,1Cr and 3Cr in the simulated water injection wells of Kazakhstan K oilfield were studied by weight-loss method, SEM, EDS, XPS and electrochemical testing. Material selection was carried out according to the corrosion resistance and economic benefits of different materials. The results show that 3Cr steel had the best corrosion resistance while N80 steel was the worst among three materials. The corrosion products on 1Cr and 3 Cr steels promoted their corrosion resistance compared to N80 steel. The combination of N80 steel and corrosion inhibitor D composed of mannich base and scale inhibitor had the best corrosion resistance among all inhibitors in simulated environment. For anti-corrosion technology, there was a greater economic benefit by replacing carbon steel with low alloy steel, which could meet the requirements of flied demands.
中图分类号 TG174.3 DOI 10.11973/fsyfh-202103007
所属栏目 应用技术
基金项目 国家重大专项“海上油气田关键工程技术”（2016ZX05033-004）
收稿日期 2019/1/23
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引用该论文: LI Yan. Corrosion Behavior and Protection Measures of Water Injection Pipe in Kazakhstan K Oilfield[J]. Corrosion & Protection, 2021, 42(3): 38
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参考文献
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【3】刘晶姝,李强,龙媛媛. 胜利油田强腐蚀区块管线腐蚀影响因素研究[J]. 腐蚀与防护,2006,27(6):299-302.
【4】罗跃,颜谨,刘清云,等. 塔里木油田采出水水质分析以及改进措施研究[J]. 长江大学学报(自然科学版),2011,8(1):75-77,281.
【5】李淑英. 塔中四油田注水管线结垢腐蚀影响因素分析[J]. 油气田环境保护,2014,24(3):22-26,80-81.
【6】李丁,晏伟,张磊,等. 艾哈代布油田注水井井下油管内腐蚀机理研究[J]. 化学世界,2017,58(10):631-636.
【7】SHUKLA P K,NARAIAN S. Under-Deposit corrosion in a sub-sea water injection pipeline-a case study[C]//CORROSION/2017. New Orleans,Louisiana:NACE International,2017:8973.
【8】易爱文,杨永钊,李刚,等. 杏子川油田注入水水质劣化原因分析及对策研究[J]. 石油化工应用,2018,37(9):70-74,79.
【9】曹怀山,谭云贤,罗杨,等. 注水井腐蚀原因分析及防护对策[J]. 石油与天然气化工,2010,39(2):151-154,89.
【10】肖雯雯,宋成立,白真权,等. 油田地面集输管道腐蚀穿孔风险分析[J]. 油气田地面工程,2017,36(4):81-85.
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【12】KERMANI B,GONZALES J C,TURCONI G L,et al. In-field corrosion performance of 3% Cr steels in sweet and sour downhole production and water injection[C]//CORROSION/2004. New Orleans,Louisiana:NACE,2004:04111.
【13】STERN M,GEARY A L. Electrochemical polarization:I.A theoretical analysis of the shape of polarization curves[J]. Journal of the Electrochemical Society,1957,104(1):56-63.
【14】AILOR W H,KING C V. Handbook on corrosion testing and evaluation[J]. Journal of the Electrochemical Society,1973,120(2):50C.
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【16】GUO S Q,XU L N,ZHANG L,et al. Corrosion of alloy steels containing 2% chromium in CO2 environments[J]. Corrosion Science,2012,63:246-258.
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【20】CHRISTIE A B,LEE J,SUTHERLAND I,et al. An XPS study of ion-induced compositional changes with group Ⅱ and group IV compounds[J]. Applications of Surface Science,1983,15(1/2/3/4):224-237.
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【23】TANG Y,GUO X P,ZHANG G A. Corrosion behaviour of X65 carbon steel in supercritical-CO2 containing H2O and O2 in carbon capture and storage (CCS) technology[J]. Corrosion Science,2017,118:118-128.
【24】WEI L,PANG X L,LIU C,et al. Formation mechanism and protective property of corrosion product scale on X70 steel under supercritical CO2 environment[J]. Corrosion Science,2015,100:404-420.
【25】HABER J,STOCH J,UNGIER L. X-ray photoelectron spectra of oxygen in oxides of Co,Ni,Fe and Zn[J]. Journal of Electron Spectroscopy and Related Phenomena,1976,9(5):459-467.
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