“…One aim that has been so much studied in the petroleum industry is the effect of flow and dissolved gases, such as hydrogen sulphide (H 2 S) and carbon dioxide (CO 2 ). The most common type of flow conditions found in industrial processes is turbulent and according to increasing of the necessity to describe the corrosion of metals in turbulent flow conditions some laboratory hydrodynamic systems have been used with different degrees of success (Poulson, 1983(Poulson, , 1993(Poulson, , 1994. Among these hydrodynamic systems, rotating cylinder electrodes (RCE), pipe segments, concentric pipe segments, submerged impinging jets and close-circuit loops have been used and have been important in the improvement of the understanding of the corrosion process taking place in turbulent flow conditions (Liu et al, 1994;Lotz, 1990;Schmitt et al, 1991;Silverman, 1984Silverman, , 1988Silverman, , 1990.…”