Investigation of the corrosion resistance of a new pipe steel

UDK: 621.692.4.076:620.193.197

DOI: 10.24887/0028-2448-2026-2-90-94

Key words: field pipeline, steel, pilot testing, corrosion, reliability

Authors: P.V. Burkov (National Research Tomsk Polytechnic University, RF, Tomsk; Tomsk State University of Architecture and Building, RF, Tomsk); V.V. Sevostyanov (Gazprom Neft Companу Group, RF, Saint Petersburg)

Field pipelines are subject to internal corrosion due to exposure to highly mineralized reservoir water. In this regard, special attention is paid to the resistance of the materials of pipes to the effects of destructive factors, as they significantly reduce the period of trouble-free operation of pipelines. Under these conditions, experimental rolled pipe steel with improved performance properties was created. Comparative tests of technical characteristics of the obtained alloy with the most commonly used rolled products indicate a high development potential, and preliminary laboratory tests, the results of which are presented in the work, indicate a multiple increase in reliability and trouble-free operation of hydrocarbon transportation facilities. As part of the work, the main reasons for the decrease in the reliability of field pipelines and the features of their operation are identified, and the methodology for testing new grades of steel is described. The microstructure of the studied samples is considered and their structural features are determined. Pilot industrial tests of an experimental grade of steel were carried out at production facilities, which enabled to confirm the high laboratory test results in real conditions. The results obtained enable to draw conclusions about the prospects of the developed alloy and the possibility of its application in real conditions, increasing the production efficiency of oil producing companies.

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