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Thursday, October 9, 2008: 4:00 PM
Laughlin II (Flamingo Las Vegas)
Abstract
Corrosion performance of API X60 pipeline materials with different microstructures was investigated in brine environment containing 60000 ppm chloride saturated with CO2. The different microstructures were produced by a wide range of heat treatments same as following; quenched and two hours tempered at 100, 250, 350, 450, 550 and 650°C compared with as received structure in hot rolled structure. Effect of film forming corrosion inhibitors at different concentrations, 3, 15 and 30ppm was also investigated.
Corrosion rate measurements using linear polarization electrochemical technique CO2 gas. Hot rolled microstructure showed the highest corrosion rate followed by quenched microstructure. Initial stable low corrosion rate controlled by tempered structure was observed followed by increase in corrosion rate for higher than 450C tempering structure. Varied corrosion resistance in such corrosive environment was noticeable when different corrosion inhibitors concentrations were added.
Keywords; API X-60, quenched, tempered, CO2, corrosion inhibitor
Corrosion performance of API X60 pipeline materials with different microstructures was investigated in brine environment containing 60000 ppm chloride saturated with CO2. The different microstructures were produced by a wide range of heat treatments same as following; quenched and two hours tempered at 100, 250, 350, 450, 550 and 650°C compared with as received structure in hot rolled structure. Effect of film forming corrosion inhibitors at different concentrations, 3, 15 and 30ppm was also investigated.
Corrosion rate measurements using linear polarization electrochemical technique CO2 gas. Hot rolled microstructure showed the highest corrosion rate followed by quenched microstructure. Initial stable low corrosion rate controlled by tempered structure was observed followed by increase in corrosion rate for higher than 450C tempering structure. Varied corrosion resistance in such corrosive environment was noticeable when different corrosion inhibitors concentrations were added.
Keywords; API X-60, quenched, tempered, CO2, corrosion inhibitor
See more of: EG-1: Corrosion in Oil and Gas Exploration and Production
See more of: Energy Generation
See more of: Energy Generation
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