The probabilistic model of the maximum values distribution for describing the corrosion damage depth of steel pipes of main oil pipelines
V. A. Pashinskyia, Zh. Yu. Beskrovnab
a Kirovograd National Technical University
b Poltava National Technical Yuri Kondratyuk University
Annotation: Statistical analysis of the in-line inspection results of one of Ukrainian oil pipeline was performed in the paper. Based on the practice of repair work, performed by replacing the whole sections of the pipeline with the joining in the area of existing welds, the maximum corrosion depth values within the limits of each section had considered. The possibility of representing the depth of corrosion damage in the form of sequences of maximum values that described of double exponential distribution law of Gumbel is justified on the basis of performed analysis. Interrelation between statistical characteristics of the corrosion depth and their dependence of the amount of corrosion damage per length unit of the pipeline was analyzed. Developed probabilistic model for describing the depth of corrosion damage can be used for assessing the reliability of steel pipes of oil pipelines considering the presence of undamaged sections and their impact on the reliability of the pipeline in total.
Keywords: main oil pipeline, corrosion damage, the statistical analysis.
Pages: 71-78.
Link for citation: Pashinskyi, V. A.; Beskrovna, Zh. Yu. The probabilistic model of the maximum values distribution for describing the corrosion damage depth of steel pipes of main oil pipelines. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2013. – Vol. 9, N 2. – Р. 71-78. – URL: https://donnasa.ru/publish_house/journals/spgs/2013-2/01_paschinskij_beskrovnaya.pdf (date of access: 19.09.2024). (in Russian)
Vol. 9, N 2 (2013)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture