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Offshore oil and gas platforms located on offshore fields are exposed to various stresses, the most intense of which is corrosive. Corrosion caverns arising in different areas of offshore oil and gas structures cause local stress concentration, and can cause overstresses of structural elements with its subsequent destruction. The most dangerous are corrosion defects “V”-shaped, capable of increasing the value of operating stresses more than 2 times. The article presents the results of experiments and a method of estimating the size of corrosion defects on the basis of data on the difference between defect-free and corrosion-affected areas. The use of this technique will allow to determine the sizes of corrosion damages with high efficiency and to estimate their influence on the safety of operation of offshore oil and gas platforms.

iop conference series. earth and environmental science

Method of Determining the Sizes of Corrosion Defects of Elements of Marine Oil and Gas Industrial Constructions on the Basis of Data on Temperature Contrasts