Corrosion inhihitors in petroleum production - effect of water salinity and content

In the present paper, the effect of water/oil ratio and water salinity on the efficiency of some corrosion inhibitors used in petroleum production has been investigated. Tests have been conducted on mild steel in stagnant and dynamic environments. The results revealed that the two parameters generally affect the performance of the inhibitors. The inhibition action increases with the increase of water salinity and oil/water ratio. The extent of these variations depends on the; type of inhibitor. The required Jose in most cases decreases with the increase of water salinity and oil/water ratio. These results indicate that the fluid characteristics must be carefully considered in the evaluation and selection of corrosion inhibitors