Fight against corrosion of oil and gas industrial equipment in conditions of bacterial infection

The bactericidal properties of the inhibitor MARZA-1 have been investigated related to two species of Desulfovibriodesulfuricans and Desulfomicrobium sulfate-reducing bacteria. The impact of the inhibitor MARZA-1 on the number of bacterial cells and formation of hydrogen sulfide in the Post-Gate-B nutrient medium has been evaluated. It was shown that, the inhibitor MARZA-1 reveals bacteriostatic action in relation to the sulfate-reducing bacteria Desulfovibriodesulfuricans and Desulfomicrobium. The study of the bactericidal properties of the inhibitor MARZA-1 showed that, it effectively suppresses the growth in the number of sulfate-reducing bacteria in the Post-gate nutrient medium, i.e. in the most comfortable conditions for their development and vital functions. So, after the introduction of the inhibitor MARZA-1 and increasing its concentration in the Post-gate medium, the number of sulfate-reducing bacteria of both types decreases. It was revealed that the degree of suppression in the number of microorganisms of Desulfovibriodesulfuricans at an inhibitor concentration of MARZA-1 is 7.0 mg/L higher than Desulfomicrobium. In the latter case, 10.0 mg/L of inhibitor MARZA-1 is required to achieve this effect.