Résumé : There have been revealed and summarized the regulari-
ties in biocorrosion of steel 17G1S-U, which is traditionally
used for manufacturing oil and gas mains. The basic regulari-
ties of biocorrosion processes in the 17G1S-U pipe steel under
the influence of SRB Desulfovibrio Sp. strains Kyiv-10 was ob -
tained by weight-loss testing and surface analysis techniques.
Effective inhibitors are proposed, which allow protecting ste-
el 17G1S-U against the development of anaerobic corrosion
under the influence of sulfate-reducing bacteria (SRB). The
effectiveness of inhibitors is estimated by the degree of their
protective effect. The porous structure of the surface film con - tributes to the initiation of localized corrosion. Damage analy-
sis of the specimen surface corroded under different test condi-
tions was performed.