Abstract
Abstract The existing methods of studying hydrogen sulfide (H2S) corrosion and its inhibitors were critically reviewed. Of the laboratory methods, the techniques using corrosion test specimens, the electrochemical methods (potentiokinetic polarization curves, potentiostatic measurements, impedance), and the corrosimetric methods (electrical resistance and polarization methods, hydrogen penetration into steel) are described in more detail. The ways of interpreting measurement results are presented, and possibilities of evaluating the type of inhibitor adsorption at the phase boundary as well as quantitative description of interactions between the inhibitor's molecules and with the metal surface are presented. Methods of laboratory studies on the effect of corrosion inhibitors on technological processes in refineries are described. Methods of corrosimetric investigations used in field studies in the petroleum industry (gravimetric, corrosimetric, methods of hydrogen penetration into steel, chemical analysis...
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