CO2 dominated corrosion has been extensively studied under varying conditions and significant number of the corrosion inhibitors used in the industry today can provide adequate corrosion protection but corrosion mitigation for high shear and high temperature (HTHS) still remains a challenge. Recently, with the rise in “green” concept in O&G sector, customers are asking for products that can not only protect their assets but cause little or no harm to the environment in which they operate.

This paper emphasizes the development of low toxic, subsea umbilical certified corrosion inhibitors that provides excellent corrosion protection GCR (General Corrosion Rates) < 3mpy and localized corrosion performance (pitting depths <10 μm) under high shear and high temperature conditions with limited impact on the oil water separation. The products have been qualified under several test conditions with varying corrosivity in autoclaves. All the products qualified in this work earned a silver ranking using the Offshore Chemical Notification Scheme (OCNS) CHARM model, indicating low environmental impact.