The article describes the problem solution option to determine the size of the clear opening area for through-thickness damage in the underwater pipeline with encasement. The integrated method is proposed to determine damages like ruptures, bursts, kinks/breaks, etc., formed in the pipeline wall or in pipeline encasement joints. According to the proposed method, the main indicators that enable calculating the size of such damage – the distance to the point of damage occurrence and the pressure at the point of damage occurrence are determined separately – using fundamentally different methods. According to the method proposed, the distance to the point of through-thickness damage is determined by piezoelectric cells placed with a certain spacing in the pipeline – encasement annulus, and the pressure in the point of damage is estimated using classical design methods. The formula is obtained to calculate the size of the clear opening area for through-thickness damage according to the proposed integrated method.
How to Cite
pipeline, through-thickness damage, piezoelectric cell, encasement, pressure, pipeline – encasement annulus
 V. Shalay, M. Vasiliev, K. Shumarkov. Analysis of the technical condition of the line facilities in the main oil pipelines, determining the optimal ways to maintain the line facilities in the standards-compliant condition. Omsk Scientific Bulletin, №1 (26), pp. 196–199 (in Russ.)
 Main oil pipelines. Leak detection (in Russ.) http://proofoil.ru/Oilpipeline/leaksearch.html
 R. Sultanov, F. Mustafin, Method of determining the leakage location in the cased underwater pipeline and the leakage location in the encasement. Problems of gathering, treatment and transport of oil and petroleum products, Ufa State Oil Technical University, 2016, №4 (106) pp. 93–101 (in Russ.)
 V. Chupin, A. Dushin, R. Chupin, Determining location of damages, leaks and unauthorized water taps from the water supply system, IrSTU Bulletin No. 5 (64), 2012, pp. 89–96 (in Russ.)
 Bimorph piezoelectric cells, actuators and transducers (in Russ.) http://www.compitech.ru/html.cgi/arhiv/03_04/stat_46.htm
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