新型2Cr1Mo2Ni鋼在含二氧化碳油田采出液中的腐蝕行為

張瑾; 許立寧; 路民旭

doi:10.13374/j.issn2095-9389.2017.07.012

新型2Cr1Mo2Ni鋼在含二氧化碳油田采出液中的腐蝕行為

doi: 10.13374/j.issn2095-9389.2017.07.012

北京科技大學新材料技術研究院腐蝕與防護中心, 北京 100083

基金項目:

國家科技支撐計劃資助項目(2012BAK13B04)

詳細信息

中圖分類號: TG174.2
計量
- 文章訪問數: 573
- HTML全文瀏覽量: 198
- PDF下載量: 19
- 被引次數: 0
出版歷程
- 收稿日期: 2016-12-08

Corrosion behavior of novel 2Cr1Mo2Ni steel in the oil field formation water containing CO₂

Corrosion and Protection Center, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 為弄清Mo和Ni元素在低Cr鋼耐蝕方面所起的作用,煉制了新型2Cr1Mo2Ni鋼,研究其在模擬油田采出液中的腐蝕行為,實驗條件為80℃,0.8 MPa CO₂分壓.利用掃描電鏡和能譜分析研究了2Cr1Mo2Ni鋼和3Cr鋼的腐蝕產物膜微觀形貌和成分,測試了高溫高壓極化曲線和電化學阻抗譜,分析了腐蝕產物膜的生長過程.實驗結果表明,Mo和Ni元素在提高抗CO₂腐蝕性能方面的作用不及Cr元素.2Cr1Mo2Ni鋼腐蝕164 h后,中低頻感抗弧消失,腐蝕產物膜開始完全覆蓋基體表面;腐蝕240 h后,生成的腐蝕產物膜具有較好的保護性.
- 2Cr1Mo2Ni鋼 /
- 二氧化碳腐蝕 /
- 低Cr鋼 /
- 腐蝕產物膜 /
- 電化學阻抗譜
Abstract: The corrosion behavior of the new 2Cr1Mo2Ni steel in the oil field formation water containing CO₂ at 80℃ and 0.8 MPa was studied herein to clarify the role of Ni and Mo in the corrosion resistance of low-Cr steel. The surface morphology and the chemical composition of the corrosion scales were analyzed by scanning electron microscopy and energy dispersive spectroscopy (EDS). The polarization curves and the electrochemical impedance spectroscopy spectra were also obtained to explore the growth process of the corrosion scale. The results indicate that Mo and Ni are not as efficient as Cr in enhancing the corrosion resistance of the low-Cr steel. The low-frequency inductance loop disappears after 164 h immersion. Moreover, the corrosion scale completely covers the substrate surface. In addition, the protective corrosion scale forms after 240 h immersion.
- 2Cr1Mo2Ni steel /
- carbon dioxide corrosion /
- low-Cr steel /
- corrosion scale /
- EIS spectra

HTML全文

參考文獻(13)

[1]	Nazari M H, Allahkaram S R, Kermani M B. The effects of temperature and pH on the characteristics of corrosion product in CO₂ corrosion of grade X70 steel. Mater Des, 2010, 31(7):3559
[2]	Ingham B, Ko M, Kear G, et al. In situ synchrotron X-ray diffraction study of surface scale formation during CO₂ corrosion of carbon steel at temperatures up to 90℃. Corros Sci, 2010, 52(9):3052
[3]	Zhang G A, Cheng Y F. Localized corrosion of carbon steel in a CO₂ -saturated oilfield formation water. Electrochim Acta, 2011, 56(3):1676
[4]	Desimone M P, Grundmeier G, Gordillo G, et al. Amphiphilic amido-amine as an effective corrosion inhibitor for mild steel exposed to CO₂ saturated solution:Polarization, EIS and PM-IR-RAS studies. Electrochim Acta, 2011, 56(8):2990
[5]	Kermani M B, Morshed A B. Carbon dioxide corrosion in oil and gas production-a compendium. Corrosion, 2003, 59(8):659
[6]	Paolinelli L D, Pérez T, Simison S N. The incidence of chromium-rich corrosion products on the efficiency of an imidazolinebased inhibitor used for CO₂ corrosion prevention. Mater Chem Phys, 2011, 126(3):938
[7]	Ueda M, Takabe H, Nice P I. The development and implementation of a new alloyed steel for oil and gas production wells//Corrosion 2000. Orlando, 2000:00154
[8]	Ueda M, Takabe H. Corrosion resistance of low Cr bearing steel in sour and sweet environments//Corrosion 2002. Denver, 2002:02041
[9]	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//Corrosion 2004. New Orleans, 2004:04111
[10]	Guo S Q, Xu L N, Zhang L, et al. Corrosion of alloy steels containing 2% chromium in CO₂ environments. Corros Sci, 2012, 63:246
[11]	Zhu J Y, Xu L N, Lu M X, et al. Essential criterion for evaluating the corrosion resistance of 3Cr steel in CO₂ environments:prepassivation. Corros Sci, 2015, 93:336
[12]	Xu L N, Wang B, Zhu J Y, et al. Effect of Cr content on the corrosion performance of low-Cr alloy steel in a CO₂ environment. Appl Surf Sci, 2016, 379:39
[13]	Wang B, Xu L N, Zhu J Y, et al. Observation and analysis of pseudopassive film on 6.5% Cr steel in CO₂ corrosion environment. Corros Sci, 2016, 111:711