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INHIBITIVE EFFECT OF TG500 IN THE SOLUTIONWITH HIGH CONTENT CO2 AND Cl- |
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中国石油天然气集团公司石油管力学与环境行为重点实验室 |
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Abstract As a new quaternary ammonium of double-alkyl and double-annular imidazoline ,TG500 was designed for the oilfield with high content CO2 and Cl-.Weight losses of the steel N80 in static condition with high temperature high pressure and high CO2 and Cl- are tests for evaluating inhibition efficiency of TG500.The results show that the inhibition efficiency is increasing with the content of TG500 at first,and then does not increase any more,when the content is up to 0.3 g/L.The corrosion morphology on N80 steel surface is uniform corrosion in low concentration; when the content up to 0.3 g/L,then there is only invisible sign of corrosion unless a few pitting corrosion.
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Received: 09 October 2005
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