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09280 Behavior of Corrosion Inhibitor on the New Ultra High Strength Steel

Picture for 09280 Behavior of Corrosion Inhibitor on the New Ultra High Strength Steel
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Product Number: 51300-09280-SG
ISBN: 09280 2009 CP
Author: A Izquierdo, A Aguilar, R Perez, L Martinez, H Quintanilla, R Esparza, S Valdez, J Ascencio
Publication Date: 2009
Industry: Oil and Gas Production
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Electrochemical techniques have been used for investigating the inhibition of new ultra high strength steel grade. This kind of steel has been developed with improved strength, toughness and weldability in order to be used in well pipeline for oil production and transportation in ultradeep water. Inhibitors play a key role in the control of corrosion associated with the production and transport of crude oil and gas. The polarization resistance, inhibitor efficiency and corrosion current density was determined in deaerated 3% NaCl + Diesel + inhibitors saturated with CO2 at 50 oC. The electrochemical technique used was the linear polarization resistance (LPR), obtaining the polarization curves and Tafel Extrapolation, in order to obtain the slopes tafel and the inhibitor efficiency, this one was determined from current density (icorr) values with and without inhibitor. It was found that the inhibitors displayed high inhibition efficiencies.

Key Words: Ultra high strength steel, Imidazole inhibitor, Corrosion behavior, Linear polarization resistance
Electrochemical techniques have been used for investigating the inhibition of new ultra high strength steel grade. This kind of steel has been developed with improved strength, toughness and weldability in order to be used in well pipeline for oil production and transportation in ultradeep water. Inhibitors play a key role in the control of corrosion associated with the production and transport of crude oil and gas. The polarization resistance, inhibitor efficiency and corrosion current density was determined in deaerated 3% NaCl + Diesel + inhibitors saturated with CO2 at 50 oC. The electrochemical technique used was the linear polarization resistance (LPR), obtaining the polarization curves and Tafel Extrapolation, in order to obtain the slopes tafel and the inhibitor efficiency, this one was determined from current density (icorr) values with and without inhibitor. It was found that the inhibitors displayed high inhibition efficiencies.

Key Words: Ultra high strength steel, Imidazole inhibitor, Corrosion behavior, Linear polarization resistance
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