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01058 Application of a Submerged Impinging Jet to Investigate the Influence of Temperature, Dissolved CO2, and Fluid Velocity on Corrosion of Pipeline-Grade Steel in Brine

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Product Number: 51300-01058-SG
ISBN: 01058 2001 CP
Author: Jose C. Cardoso Filho and Mark E. Orazem
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Experimental results and analyses are reported on the electrochemical behavior of pipeline-grade steel in high-shear environments of brine saturated in CO2 at 1 atm at temperatures of 30 and 60°C. The environments studied represents well waters encountered in many typical oil and gas fields. A submerged axisymmetric impinging jet was used to study the influence of large fluid velocities on corrosion and video microscopy, corrosion potential monitoring, and impedance spectroscopy were used to investigate the state of the system and the reactivity of the electrode surface. Flow-induced removal of protective films was observed by video microscopy at the open-circuit potential in CO2-saturated brine, and such removal of protective films caused an increase in reactivity as determined by impedance nmasurements. Keywords: CO2 corrosion, carbon steel, impinging jet, impedance spectroscopy
Experimental results and analyses are reported on the electrochemical behavior of pipeline-grade steel in high-shear environments of brine saturated in CO2 at 1 atm at temperatures of 30 and 60°C. The environments studied represents well waters encountered in many typical oil and gas fields. A submerged axisymmetric impinging jet was used to study the influence of large fluid velocities on corrosion and video microscopy, corrosion potential monitoring, and impedance spectroscopy were used to investigate the state of the system and the reactivity of the electrode surface. Flow-induced removal of protective films was observed by video microscopy at the open-circuit potential in CO2-saturated brine, and such removal of protective films caused an increase in reactivity as determined by impedance nmasurements. Keywords: CO2 corrosion, carbon steel, impinging jet, impedance spectroscopy
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