Electrochemical polarization study on crude oil pipeline corrosion by the produced water with high salinity

Abstract The effects of chloride ion, temperature, pH value, CO 2 and O 2 on the corrosion induced leakage of the inner wall of crude oil pipeline with the produced water were investigated by electrochemical polarization. The results showed that chloride ion corrosion would gradually experience the smooth invariant stage, the slow rise stage, and the rapid rise stage which due to the chloride ion destroy the corrosion product film. The corrosion rate would reach a maximum when the temperature was 65 °C or the pH value was 3.5. O 2 was the dominant factor induced the increase of corrosion rate when compared with the effect of CO 2 . Moreover, long term and periodic (30 consecutive days) electrochemical CO 2 corrosion tests suggested that the CO 2 corrosion rate reached a maximum at 4 days. The obtained results would facilitate the formulation of control measures for pipeline corrosion in the oil field.

[1]  P. Refait,et al.  Electrochemical study of the corrosion rate of carbon steel in soil: Evolution with time and determination of residual corrosion rates under cathodic protection , 2012 .

[2]  Xing Wei,et al.  Failure analysis of a steel tube joint perforated by corrosion in a well-drilling pipe , 2012 .

[3]  N. Aung,et al.  A new method of studying buried steel corrosion and its inhibition using the wire beam electrode , 2004 .

[4]  K. Gao,et al.  The growth mechanism of CO2 corrosion product films , 2011 .

[5]  Iain Le May,et al.  Structural integrity of aging buried pipelines having cathodic protection , 2006 .

[6]  Yucheng Liu,et al.  Influence of produced water with high salinity and corrosion inhibitors on the corrosion of water injection pipe in Tuha oil field , 2014 .

[7]  A. S. Grema,et al.  Corrosion problems during oil and gas production and its mitigation , 2013, International Journal of Industrial Chemistry.

[8]  Yong Bai,et al.  Subsea Engineering Handbook , 2012 .

[9]  Donavan Marney,et al.  The science of pipe corrosion: A review of the literature on the corrosion of ferrous metals in soils , 2012 .

[10]  S. Nešić.  Key issues related to modelling of internal corrosion of oil and gas pipelines - A review , 2007 .

[11]  Brian Boswell,et al.  Pipeline failures in corrosive environments – A conceptual analysis of trends and effects , 2015 .

[12]  Kusmono,et al.  Analysis of Internal Corrosion in Subsea Oil Pipeline , 2014 .

[13]  A. Abdolmaleki,et al.  Failure analysis of SCC and SRB induced cracking of a transmission oil products pipeline , 2007 .

[14]  C. Chai,et al.  Inhibition effect of thioureidoimidazoline inhibitor for the flow accelerated corrosion of an elbow , 2015 .

[15]  Shou-wei Zhou,et al.  Effects of chloride content on CO2 corrosion of carbon steel in simulated oil and gas well environments , 2014 .

[16]  Emeka Emanuel Oguzie.  Corrosion inhibition of aluminium in acidic and alkaline media by Sansevieria trifasciata extract , 2007 .

[17]  Delmo Santiago Vaitsman,et al.  Evaluation of the corrosivity of the soil through its chemical composition. , 2007, The Science of the total environment.

[18]  G. Cheng,et al.  Effect of pH and chloride on the micro-mechanism of pitting corrosion for high strength pipeline steel in aerated NaCl solutions , 2015 .

[19]  J. Alamilla,et al.  Failure analysis and mechanical performance of an oil pipeline , 2013 .

[20]  Mark J. Stevens,et al.  Carbon dioxide and hydrogen sulfide associations with regional bacterial diversity patterns in microbially induced concrete corrosion. , 2014, Environmental science & technology.