Abstract
The purpose of the present work is to investigate the corrosion sensitivity of pipelines of oil and gas wells under complex environmental conditions (i.e., the primary and secondary relationship of the influence of different environmental factors on pipeline corrosion). The orthogonal experiment is introduced to design the experimental scheme. The weight loss method is employed to analyze the average corrosion rate of N80 steel under different environmental conditions. And then the scanning electron microscope is used to explore the surface and cross-section corrosion morphology of the corrosion products. Besides, the components of corrosion products are obtained by the energy spectrum analysis. The research results indicate that H2S partial pressure is the most sensitive factor to the corrosion of N80 pipeline and the influence of CO2 partial pressure on corrosion of N80 pipeline is weaker than Cl− concentration and temperature in the South China Sea. The study can help the oil drilling engineering search for direct and effective corrosion inhibitors under complex environmental conditions.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None decleared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
Abd, E.L.H.M., Abbasov, V.M., Aliyeva, L.I., and Ismayilov, T.A. (2012). Corrosion protection of steel pipelines against CO2 corrosion-a review. Chem. J. 2: 52–63.Search in Google Scholar
Brown, B., Parakala, S.R., and Nesic, S. (2004). CO2 Corrosion in the presence of trace amounts of H2S. Corrosion 04736.Search in Google Scholar
Cai, J.Y., Li, C., Tang, X.P., Ayello, F., Richter, S., and Nesic, S. (2012). Experimental study of water wetting in oil-water two phase flow-horizontal flow of model oil. Chem. Eng. Sci. 73: 334–344, https://doi.org/10.1016/j.ces.2012.01.014.Search in Google Scholar
Cardoso, F.J.C. and Orazem, M.E. (2001). Application of submerged impinging jet to investigate the influence of temperature, dissolved CO2 and fluid velocity on corrosion of pipeline-grade steel in brine. In NACE - International Corrosion Conference Series, 1058.Search in Google Scholar
Cheng, Y.P., Bai, Y., Tang, S.F., Zheng, D.K., Li, Z.L., and Liu, J.G. (2019). Corrosion behavior of X65 steel in CO2-saturated oil/water environment of gathering and transportation pipeline. Anti-corrosion Methods & Mater. 66: 671–682, https://doi.org/10.1108/acmm-02-2019-2081.Search in Google Scholar
Ding, J.H., Zhang, L., Li, D.P., Lu, M.X., Xue, J.P., and Zhong, W. (2013). Corrosion and stress corrosion cracking behavior of 316L austenitic stainless steel in high H2S–CO2–Cl− environment. J. Mater. Sci. 48: 3708–3715, https://doi.org/10.1007/s10853-013-7168-1.Search in Google Scholar
Elgaddafi, R., Naidu, A., Ahmed, R., Shah, S., Hassani, S., Osisanya, S.O., and Saasen, A. (2015). Modeling and experimental study of CO2 corrosion on carbon steel at elevated pressure and temperature. J. Nat. Gas Sci. Eng. 27: 1620–1629.10.1016/j.jngse.2015.10.034Search in Google Scholar
Feng, R., Beck, J.R., and Hall, D.M. (2018). Effects of CO2 and H2S on Corrosion of martensitic steels in brines at low temperature. Corrosion 74: 276–287, https://doi.org/10.5006/2406.Search in Google Scholar
Hasan, B.O. and Aziz, S.M. (2017). Corrosion of carbon steel in two phase flow (CO2 gas-CaCO3 solution) controlled by sacrificial anode. J. Nat. Gas Sci. Eng. 46: 71–79, https://doi.org/10.1016/j.jngse.2017.06.032.Search in Google Scholar
He, W., Knudsen, O.Ø., and Diplas, S. (2009). Corrosion of stainless steel 316L in simulated formation water environment with CO2–H2S–Cl−. Corrosion Sci. 51: 2811–2819, https://doi.org/10.1016/j.corsci.2009.08.010.Search in Google Scholar
Javidi, M. and Bekhrad, S. (2018). Failure analysis of a wet gas pipeline due to localised CO2 corrosion. Eng. Fail. Anal. 89: 46–56, https://doi.org/10.1016/j.engfailanal.2018.03.006.Search in Google Scholar
Khokhar, M.I., Allam, I.M., and Quddus, A. (1991). Technical note: the role of corrosion in the deposition of SrCO3 crystals. Corrosion 47: 341–343, https://doi.org/10.5006/1.3585263.Search in Google Scholar
Liu, Q.Y., Mao, L.J., and Zhou, S.W. (2014). Effects of chloride content on CO2 corrosion of carbon steel in simulated oil and gas well environments. Corrosion Sci. 84: 165–171, https://doi.org/10.1016/j.corsci.2014.03.025.Search in Google Scholar
Mansoori, H., Young, D., Brown, B., and Singer, M. (2018). Influence of calcium and magnesium ions on CO2 corrosion of carbon steel in oil and gas production systems – a review. J. Nat. Gas Sci. Eng. 59: 287–296, https://doi.org/10.1016/j.jngse.2018.08.025.Search in Google Scholar
Mishra, B., Al-Hassan, S., Olsen, D.L., and Salama, M.M. (1997). Development of a predictive model for activation-controlled corrosion of steel in solutions containing carbon dioxide. Corrosion 53: 852–859, https://doi.org/10.5006/1.3290270.Search in Google Scholar
Morse, J.W., Millero, F.J., Cornwell, J.C., and Rickard, D. (1987). The chemistry of the hydrogen sulfide and iron sulfide systems in natural waters. Earth Sci. Rev. 24: 1–42, https://doi.org/10.1016/0012-8252(87)90046-8.Search in Google Scholar
Nesic, S. (2008). Key issues related to modeling of internal of corrosion of oil and gas pipelines – a review. Corrosion Sci. 49: 4308–4338.10.1016/j.corsci.2007.06.006Search in Google Scholar
Nesic, S. and Lunde, L. (1994). Carbon dioxide corrosion of carbon steel in two-phase flow. Corrosion 50: 717–727.10.5006/1.3293548Search in Google Scholar
Nesic, S., Postlethwaite, J., and Olsen, S. (1996). An electrochemical model for prediction of corrosion of mild steel in aqueous carbon dioxide solutions. Corrosion 52: 280–294, https://doi.org/10.5006/1.3293640.Search in Google Scholar
Ogundele, G.I. and White, W.E. (1987). Observations on the influences of dissolved hydrocarbon gases and variable water chemistries on corrosion of an API-L80 steel. Corrosion 43: 665–673, https://doi.org/10.5006/1.3583847.Search in Google Scholar
Rihan, R., Zafar, M.N., and Al-Hadhrami, L. (2016). A novel emulsion flow loop for investigating the corrosion of X65 steel in emulsions with H2S/CO2. J. Mater. Eng. Perform. 25: 3065–3073, https://doi.org/10.1007/s11665-016-2031-6.Search in Google Scholar
Smith, J.S. and Miller, J.D.A. (1975). Nature of sulphides and their corrosive effect on ferrous metals: a review. Br. Corrosion J. 10: 136–143, https://doi.org/10.1179/000705975798320701.Search in Google Scholar
Sun, C., Sun, J.B., Wang, Y., Wang, S.J., and Liu, J.X. (2014). Corrosion mechanism of OCTG carbon steel in supercritical CO2/oil/water system. Acta Metall. Sin. 50: 811–820.Search in Google Scholar
Sun, W. (2006). Kinetic of iron carbonate and iron sulfide layer formation in CO2/H2S corrosion. In NACE International Corrosion Conference and Expo, 06644.Search in Google Scholar
Sun, Y., George, K., and Nesic, S. (2003). The effect of Cl− and acetic acid on localized CO2 corrosion in wet gas flow. In Corrosion. NACE-03327.Search in Google Scholar
Videm, K. and Koren, A.M. (1993). Corrosion, passivity, and pitting of carbon steel in aqueous solutions of HCO3−, CO2, and Cl−. Corrosion 49: 746–754, https://doi.org/10.5006/1.3316127.Search in Google Scholar
Videm, K., Dugstad, A., and Lunde, L. (1994). Parametric study of CO2 corrosion of carbon steel. Corrosion 94: 14.Search in Google Scholar
Waard, C. and Lotz, U. (1993). Prediction of CO2 corrosion of carbon steel. Corrosion 93: 69.Search in Google Scholar
Waard, C. and Milliams, D.E. (1975). Carbonic acid corrosion of steel. Corrosion 31: 131–140, https://doi.org/10.5006/0010-9312-31.5.177.Search in Google Scholar
Waard, C., Lotz, U., and Milliams, D.E. (1991). Predictive modell for CO2 corrosion engineering in wet natural gas pipelines. Corrosion 47: 976–985, https://doi.org/10.5006/1.3585212.Search in Google Scholar
Waard, C., Lotz, U., and Dugstad, A. (1995). Influence of liquid flow velocity on CO2 corrosion: a semi-empirical model. Corrosion 95: 128.Search in Google Scholar
Wang, L.T., Xing, Y.Y., Liu, Z.Y., Zhang, D.W., Du, C.W., and Li, X.G. (2016). Erosion corrosion behavior of 2205 duplex stainless steel in wet gas environments. J. Nat. Gas Sci. Eng. 35: 928–934, https://doi.org/10.1016/j.jngse.2016.09.029.Search in Google Scholar
Wei, L., Pang, X.L., Zhou, M., and Gao, K.W. (2017). Effect of exposure angle on the corrosion behavior of X70 steel under supercritical CO2 and gaseous CO2 environments. Corrosion Sci. 121: 57–71, https://doi.org/10.1016/j.corsci.2017.03.011.Search in Google Scholar
Wikjord, A.G., Rummery, T.E., Doern, F.E., and Owen, D.G. (1980). Corrosion and deposition during the exposure of carbon steel to hydrogen sulphide-water solutions. Corrosion Sci. 20: 651–671, https://doi.org/10.1016/0010-938x(80)90101-8.Search in Google Scholar
Zafar, M.N., Rihan, R., and Al-Hadhrami, L. (2015). Effect of H2S and CO2 in oil/water emulsions on the corrosion resistance of SA-543 steel. J. Mater. Eng. Perform. 24: 683–693, https://doi.org/10.1007/s11665-014-1343-7.Search in Google Scholar
Zhang, G.A. and Cheng, Y.F. (2011). Localized corrosion of carbon steel in a CO2 saturated oilfield formation water. Electrochim. Acta 56: 1676–1685, https://doi.org/10.1016/j.electacta.2010.10.059.Search in Google Scholar
Zhang, G.A., Zeng, Y., Guo, X.P., Jiang, F., Shi, D.Y., and Chen, Z.Y. (2012). Electrochemical corrosion behavior of carbon steel under dynamic high pressure H2S/CO2 environment. Corrosion Sci. 65: 37–47, https://doi.org/10.1016/j.corsci.2012.08.007.Search in Google Scholar
Zhao, G.X., Lu, X.H., and Han, Y. (2008). Effect of flow rate on CO2 corrosion behavior of P110 steel. J. Mater. Eng. 8: 5–8.Search in Google Scholar
Zhou, C., Zheng, S., Chen, C., and Lu, G. (2013). The effect of partial pressure of H2S on the permeation of hydrogen in low carbon pipeline steel. Corrosion Sci. 67: 184–192, https://doi.org/10.1016/j.corsci.2012.10.016.Search in Google Scholar
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