Synergistic Inhibition Effect of Magnetic Field and Inhibitors against Carbon Steel Corrosion in CO₂-Saturated Oilfield-Produced Water

Abstract

In this work, the synergistic inhibition behavior and mechanism of magnetic field (MF) and inhibitors against carbon steel corrosion in CO2-saturated oilfield-produced water were investigated using potentiodynamic polarization curves and electrochemical impedance spectroscopy. The results show higher inhibition efficiencies, more than 94%, when inhibitors (imidazoline derivative, dodecylamine, and dodecanoic acid) at low concentrations of 10 mg/L are used in conjunction with 65 mT MF. The corrosion of steel is significantly inhibited in the presence of inhibitors with the assistance of MF. As a result, the inhibition efficiency is significantly improved. The direction of MF relative to the electrode surface has a significant influence on the charged inhibitor but has no influence on the inhibitor with no charge. This paper gives a good direction to significantly increase the inhibition efficiency of inhibitors by using MF in the oil and gas industry.

Exploration of Sunflower Oil As a Renewable Biomass Source to Develop Scalable and Highly Effective Corrosion Inhibitors in a 15% HCl Medium at High Temperatures

“…Schiff bases, triazoles, pharmaceuticals, pyrazoles, imidazolines, nitriles, alkenylphenones, amides, amines, imminium salts, and pyridine are the most common organic CIs that have been used in the oil and gas industry. , In recent years, organic-based CIs have been used as an efficient approach of corrosion inhibition. However, low biodegradability, high cost, and difficult synthesis procedures are their main drawbacks. ,, It should be noted that the unique properties of polymers such as multiple adsorption sites, high stability, wide diversity, and high surface-to-volume ratio have recently attracted much attention as CIs. − Concerns for the environmental problems of organic-based CIs have encouraged corrosion researchers to develop affordable and safer inhibitors based on biodegradable resources. , Recently, many studies have been done to investigate the inhibition performance of eco-friendly CIs such as chitosan, cellulose and its derivatives, glucose, amino acids, pectin, starch, dextran, gums, and plant extracts. ,− However, the biggest obstacle against the development of these green CIs is their poor performance at high temperatures. , Therefore, corrosion scientists have developed various methods to improve the inhibitory activity of green CIs, including copolymerization of natural polymers with active monomers in corrosion inhibition and composition of the polymer matrix with an inorganic compound. , The significant shortcomings of available green inhibitors provide opportunities for newer ideas to achieve novel and more efficient eco-friendly CIs. Lately, our group has succeeded in using castor oil as a biodegradable source to design and synthesize high-performance inhibitors for inhibition of MS corrosion especially at high temperatures .…”

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO2 Nanofillers for the Protection of Steel Surface in Automobile Industry

“…Due to its superior qualities like ease of availability, corrosion resistance, machinability, wide source, low cost, and mechanical strength, mild steel is a crucial metal alloy that is typically used for many applications in oil and gas pipelines, petroleum refineries, railways, buildings, bridges, appliances, and other infrastructures. − The corrosion of steel and other materials is a problem nevertheless and is regarded as one of the biggest challenges to the pipeline sector. Corrosion has been found to be the primary cause of pipeline failures as well as the accompanying financial loss and environmental problems.…”

Anti-Corrosion Mechanism of Parsley Extract and Synergistic Iodide as Novel Corrosion Inhibitors for Carbon Steel-Q235 in Acidic Medium by Electrochemical, XPS and DFT Methods

“…Corrosion inhibitor (Finšgar and Jackson, 2014;Liu et al, 2017;Liu et al, 2019;Obot et al, 2019) can be defined as a substance, which can obviously reduce the corrosion rate of metals with addition of small amount. However, most traditional corrosion inhibitors contain some toxic chemicals, which are harmful to human (cancer, hypertension, etc.…”