咪唑啉类缓蚀剂对P110钢在CO2注入井环空环境中应力腐蚀行为的影响

被引：23

作者：

刘然克 ^{[1
]}

王立贤 ^{[2
]}

刘智勇 ^{[1
]}

杜翠薇 ^{[1
]}

李晓刚 ^{[1
]}

机构：

[1] 北京科技大学腐蚀与防护中心

[2] 北京三聚环保新材料股份有限公司

来源：

表面技术 | 2015年 / 44卷 / 03期

关键词：

P110钢; 应力腐蚀; 环空环境; CO2注入;

D O I：

暂无

中图分类号：

TG174.42 [金属防腐剂、缓蚀剂]; TG172.9 [其他腐蚀];

学科分类号：

090303 [农业农村环境保护与治理（农业环境保护）];

摘要：

目的研究咪唑啉类缓蚀剂对P110钢在CO2注入井环空环境中的应力腐蚀(SCC)行为的影响,为CO2注入井环空环境腐蚀防护方法的建立提供参考和依据。方法在实验室模拟的CO2驱注井环空环境中进行应力腐蚀试验、电化学测试和腐蚀形貌分析。根据现场提取的CO2注入井环空介质的成分分析结果配制模拟溶液,选用咪唑啉类缓蚀剂,调节模拟液p H至4。通入高纯N2进行除氧,以防止硫化物氧化。应力腐蚀试样采用三点弯试样,通过将试样的挠度控制为设定值来控制加载载荷。应力腐蚀试验和电化学试验均在密闭高压釜内进行。实验结束后,采用扫描电镜对腐蚀形貌进行观察。结果在CO2注入井环空环境下,咪唑啉缓蚀剂的浓度对P110钢的SCC行为有重要影响。在拉应力载荷存在时,添加足量的缓蚀剂对均匀腐蚀和SCC均具有较好的抑制效果,但当用量不足时,缓蚀剂的添加会增大P110钢的SCC敏感性,其SCC机制为氢脆与局部阳极溶解的混合机制。因此,P110钢在模拟CO2注入井的环空环境中会发生SCC,其机制为AD+HE机制。结论咪唑啉缓蚀剂的浓度对P110钢的SCC行为有重要影响,足量的缓蚀剂对均匀腐蚀和SCC均具有较好的抑制效果,但浓度不足时反而会增大SCC敏感性。

引用

页码：25 / 30

页数：6

共 16 条

[1]

Inhibition properties of self-assembled corrosion inhibitor talloil diethylenetriamine imidazoline for mild steel corrosion in chloride solution saturated with carbon dioxide.[J].Ivana Jevremović;Marc Singer;Srđan Nešić;Vesna Mišković-Stanković.Corrosion Science.2013,

[2]

Corrosion behavior of steels for CO2 injection [J].

Yevtushenko, O. ;

Bettge, Fl ;

Bohraus, S. ;

Baesslera, R. ;

Pfennig, A. ;

Kranzmann, A. .

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, 2014, 92 (01) :108-118

[3]

Sulfide stress corrosion cracking and hydrogen induced cracking of A216-WCC wellhead flow control valve body.[J].S.M.R. Ziaei;A.H. Kokabi;M. Nasr-Esfehani.Case Studies in Engineering Failure Analysis.2013, 3

[4]

Measurement of Immiscible CO 2 Flooding Processes and Permeability Reduction due to Asphaltene Precipitation by X-ray CT Imaging.[J].Tonglei Wang;Yongchen Song;Yuechao zhao;Yu Liu;Ningjun Zhu.Energy Procedia.2013,

[5]

Corrosion mechanisms in aqueous solutions containing dissolved H 2 S. Part 1: Characterisation of H 2 S reduction on a 316L rotating disc electrode.[J].J. Kittel;F. Ropital;F. Grosjean;E.M.M. Sutter;B. Tribollet.Corrosion Science.2013,

[6]

Diversity and distribution of sulfate-reducing bacteria in four petroleum reservoirs detected by using 16S rRNA and dsrAB genes.[J].Jing Guan;Li-Ping Xia;Li-Ying Wang;Jin-Feng Liu;Ji-Dong Gu;Bo-Zhong Mu.International Biodeterioration & Biodegradation.2013,

[7]

Electrochemical corrosion behavior of carbon steel under dynamic high pressure H 2 S/CO 2 environment.[J].G.A. Zhang;Y. Zeng;X.P. Guo;F. Jiang;D.Y. Shi;Z.Y. Chen.Corrosion Science.2012,

[8]

Research on Stress Corrosion Sensitivity of C110 Casing in Wellbore Protection Fluid.[J].Dezhi Zeng;Rui Chen;Zhi Zhang;Liyun Shao;Guoping Li;Gang Tian;Taihe Shi.Energy Procedia.2012,

[9]

Surface neutralization and H2S oxidation at early stages of sewer corrosion: Influence of temperature, relative humidity and H2S concentration [J].

Joseph, Antony P. ;

Keller, Juerg ;

Bustamante, Heriberto ;

Bond, Philip L. .

WATER RESEARCH, 2012, 46 (13) :4235-4245

[10]

Stress corrosion cracking of 2205 duplex stainless steel in H<Subscript>2</Subscript>S–CO<Subscript>2</Subscript> environment.[J].Z. Y. Liu;C. F. Dong;X. G. Li;Q. Zhi;Y. F. Cheng.Journal of Materials Science.2009, 16

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