GENERAL CO 2 CORROSION IN HIGH SALINITY BRINES Haitao Fang, Srdjan Nesic, Bruce Brown Institute for Corrosion and Multiphase Technology 342 West State Street Ohio University, Athens, Ohio 45701, USA Shihuai Wang Champion Technologies 3130 FM 521 Fresno, TX 77545 ABSTRACT The general CO 2 corrosion rates of C1018 carbon steel have been measured for NaCl concentrations 3 – 25 wt% at 5ºC, pH4.0. The corrosion process was monitored by linear polarization resistance and potentiodynamic sweeps. Experimental results show that high salt concentrations affect the general CO 2 corrosion rate significantly and nonlinearly. Potentiodynamic sweep analysis shows that the high content of salt retards both cathodic and anodic process. No significant effects of velocity on corrosion rates are seen for various saline conditions Keywords: CO 2 corrosion, carbon steel, linear polarization resistance, potentiodynamic sweep, high salt concentration. 1