01596nab a2200205 4500 20260520000857.0 260224s2009 xxu Effect of Field Operational Variables on Internal Pitting Corrosion of Oil and Gas Pipelines nov. 2009 07/07/2010 ; 07/07/2010 7 p. ; 741-747 Transcripción del resumen del autor. Experiments were conducted in six operating oil and gas production pipelines over four years to determine internal pitting corrosion rates under realistic operating conditions. —Pitting corrosion rates were similar when the compositions of surface layers were similar. —When a compact layer of single species formed, the surface was protected from pitting corrosion; the iron sulfide (FeS) layer was more protective than the siderite (FeCO3) layer. —When multiple layers of several species formed, the susceptibility of the surface to pitting corrosion increased. Frequent changes in the pipeline operating conditions facilitated the formation of multiple layers. —When no surface layer formed, the susceptibility of the surface to pitting corrosion decreased but was not eliminated. Extraneous materials (e.g., sand) on the surface facilitated pitting corrosion. —In the absence of surface layer and extraneous materials, no pitting corrosion was observed. 11 Corrosion 65 ARTICULO Demoz, A. 33017 Papavinasam, S. 27519 Omotoso, O. 43538 171827 171827 0 0 0 0 239646 BAAB BAAB 2026-03-05 200046702 0 200046702 2026-03-05 15:14:12 2026-03-05 ARTICULO