Corrosion behaviour of sodium methane sulfinate inhibitors on Gas Pipeline metal in Natural Seawater Environment

This work deals with the complete investigation of corrosion degradation in gas pipeline metal. Pipelines play very important role in which means transportingof gas and oil from one place to another place in various purpose using industrial, vehicles etc. Generallythe high cost of assets used in oil and gas production, there is a need to enhance performance through good assets management techniques. Corrosion contributes to about 25% of unsuccessful in oil and gas production industry, while more than 50% of this failure is associated with sweet and sour corrosionsin pipelines. This major risk in oil and gas production requires the understanding of the failure mechanism and procedures forassessment and control.To reduce the corrosion in pipeline are using various types of inhibitors such as organic and plant inhibitors etc. In this work the synthetic inhibitors (SMS) using to avoid the pipeline metal corrosion. In this paper, investigations through potentiodynamic polarisation,electrochemical impedance studies and adsorption were used to synthetic inhibitors such as sodium methane sulfenate(SMS)for corrosion on gas pipelines in natural seawater medium .The results indicate which is the inhibitors show on protection performance and achieve the corrosion inhibition efficiency values of 82.68%, 79.43% for polarization studies, electrochemical impedance spectroscopy respectively. The surface analysis of gas pipeline was investigated using SEM and energy dispersive X-ray (EDX) methods.