PSI - Issue 36

S. Hryhorskyi et al. / Procedia Structural Integrity 36 (2022) 342–349 S. Hryhorskyi et al. / Structural Integrity Procedia 00 (2021) 000 – 000

349

8

4. Conclusion The scientific problem of studying the effect of oil leaks through a small hole on the operating mode of the operational section of the domestic oil pipeline "Druzhba" and the environment for all possible schemes of operation of pumping units at the pump station and the linear part and the development of the corresponding mathematical models was solved: 1. A technique has been developed that allows to determine the operating. energy parameters and throughput of an oil pipeline. taking into account oil leaks through small holes; 2. Multi-parameter polynomial models are obtained that predict the amount of oil leakage from the pipeline and its location based on the dynamics of changes in time of the volumetric productivity of the pipeline and oil pressure at the inlet and outlet of each pump station. The degree of reliability of the approximation of these models is more than 0.99. which indicates their adequacy and the possibility of their application in practice. This method allows detecting unauthorized sampling or leakage with a sampling rate of 10 m 3 /h with the corresponding accuracy class of pressure gauges 0.075 and 0.1. 3. The magnitude of environmental pollution due to oil infiltration into the soil was estimated and a corresponding polynomial mathematical model was developed depending on the physical properties of the transported oil. the angle of inclination of the pipeline section. the volumetric flow rate of oil through the hole in the pipeline and the time from the moment of stopping the OPS to the localization of oil leaks. Acknowledgements The research was implemented with the grant support of the National Research Fund of Ukraine (project № 2020.01/0417). References Chudyk, I., Poberezhny, L., Hrysanchuk A., Poberezhna, L., 2019. Corrosion of drill pipes in high mineralized produced waters. Procedia Structural Integrity 16, 260 - 264. Doroshenko, Y., Zapukhliak V., Grudz, Y., Poberezhny, L., Hrytsanchuk, A., Popovych, P., Shevchuk, O., 2020. Archives of Materials Science and Engineering 101(2), 63 - 78. Karpash, O. M. Wozniak, M. P. Vasilyuk, V. M. 2007. Technical diagnostics of oil and gas supply systems. Ivano - Frankivsk. IFNUOG. Poberezhny, L., Martyniuk, R., Stanetsky, A., Poberezhna, L., Tkach, O., Hrytsanchuk, A., 2019. Estimation of temporary decommissioning impact on reliability and dura - bility of oil pipelines. Journal of Achievements in Materials and Manufacturing Engineering 94(1 - 2), 22 - 31. Pobereznyi, L.Y., Poberezhna, L.Y., Maruschak, P.O., Panin, S.V., 2017. Assessment of potential environmental risks from saline soils subsidence. In IOP Conference Series: Earth and Environmental Science. IOP Publishing 50(1) 012046. Serediuk, M., Grygorskyi, S., 2015. The laws of pressure change in pipelines during cessations of pumping units. Neftyanoe khozyaystvo - Oil Industrythis link is disabled 2, 100–104. Serediuk, M., Grygorskyi, S., 2016. Experimental study of transient processes in oil pipeline caused by startups of pumping units. Eastern European Journal of Enterprise Technologies 5(2 (83), 30–37. https://doi.org/10.15587/1729 - 4061.2016.77190. Tugunov, P. I., Novoselov, V. F., Korshak, A. A., Shammazov A. M., 2002. Typical calculations in the design and operation of tank farms and oil pipelines. Ufa: Design - Polygraph Service LLC. Vasiliev, G. G., Korobkov, G. E., Korshak, A. A., 2002. Pipeline transport of oil. Moscow. Nedra. Yavorskyi, A. V., Karpash, M. O., Zhovtulia, L. Y., Poberezhny, L. Y., Maruschak. P. O., 2017. Safe operation of engineering structures in the oil and gas industry. Journal of Natural Gas Science and Engineering 46, 289–295. Yavorskyi, A. V. Karpash, M. O., Zhovtulia, L. Y., Poberezhny, L. Y., Maruschak, P. O., Prentkovskis, O., 2016. Risk management of a safe operation of engineering structures in the oil and gas sector. In: Proceedings of 20 - th Int. Conf. "Transport Means". 370–373.