DOI: 10.24412/2076-6785-2021-4-54-56
Abstract
The paper presents the influence of various factors on the rate of carbon dioxide corrosion of oil and gas field equipment, the characteristics of the inhibitors used in the companies are given. The corrosion rate of steel in a brine saturated with carbon dioxide at flow rates of 0,5 m/s and 2 m/s was investigated by the gravimetric method. The results of evaluating the protective effect of a water-soluble nitrogen-containing reagent are presented; the positive effect of the addition of a nitrogen- or phosphorus-containing surfactant is shown.
Materials and methods
Materials: industrial samples of nitrogen-containing corrosion inhibitors designed to protect equipment in oil and gas production systems, water-soluble nitrogen- and phosphorus-containing surfactants. Methods: measurement of the corrosion rate of a brine saturated with carbon dioxide under dynamic conditions based on the weight loss of steel-20 samples, comparative analysis of the protective effect of reagents.
Keywords
corrosion inhibitors, surfactants, carbon dioxide corrosion, gravimetric method for measurement the corrosion rate
