Universal Inhibitors of Hydrosulfide and Carbon Dioxide Steel Corrosion of «INCORGAS» Line for Oil Production. Theoretical Aspects, Practice of Application, New Approach to an Estimation of Efficiency

Issue 1(79) 2016
Pages 26-42

V.I. Vigdorovich1, L.E. Tsygankova2, N.V. Shel4, M.N. Esina2, L.G. Knyazeva1, A.V. Boldyrev3, Yu. A. Chirkov3

1GNY «All-Russian Research Institute of Use of Engineering and Mineral Oil», Tambov
2VPO G.R. Derzhavin Tambov State University
4VPO Tambov State Technical University

Keywords: corrosion, steel, «INCORGAS» inhibitor, sulfide hydrogen, carbon dioxide, protection

Protective efficiency of «INCORGAS» line inhibitors against hydrosulfide and carbon dioxide steel corrosion is considered as a function of medium composition (NACE, high mineralized chloride model of stratum water), nature and concentration of the inhibitors, duration of exposition. Data of laboratory stand and natural tests are presented. Bactericide properties of the inhibitors, suppression of the solid phase diffusion of hydrogen into the metal and keeping of the mechanical properties of carbon steel in conditions of tensile stress are estimated.