PSI - Issue 36

Available online at www.sciencedirect.com Available online at www.sciencedirect.com Sci nceD rect Structural Integrity Procedia 00 (2021) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000 – 000

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ScienceDirect

Procedia Structural Integrity 36 (2022) 342–349

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Abstract The methodology for calculating the throughput and operating parameters of the main oil pipelines has been improved, taking into account small oil leaks. Regularities of the change in oil pressure at the beginning and end of each of the sections of the pipeline, the volumetric flow rate of liquid in the pipeline from the linear dimensions of the through holes and their location on the pipeline route have been identified, and the corresponding mathematical models have been developed. The degree of environmental pollution during oil infiltration into the soil is estimated taking into account the physical properties of oil, the profile of the pipeline route, the volumetric productivity through the hole and the duration of the oil leak. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Keywords: pipeline depressurization; emergency oil leakage; hydraulic location of oil leakage; ecological safety of pipeline transport. 1. Introduction The problems of safe operation of oil pipelines are associated with the properties of raw oil, namely: oil is a combustible product, so that there is always a fire hazard; oil vapors are characterized by a toxic effect on humans and animals; oil pollution of the lithosphere leads to the loss of soil fertile properties etc. There are many reasons leading to the violation of the integrity of pipelines, accompanied by oil leaks. The most common reasons include: mechanical damage; corrosion (external and internal); welded joint defects; operational errors; natural phenomena etc. ((Karpash et al. (2007); Yavorskyi et al. (2016); Poberezhnyi et al. (2017); Doroshenko et al. (2020); Chudyk et 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Assessment of the degree of environmental pollution in emergency situations on main oil pipelines S. Hryhorskyi , О. Ivanov, O. Bortnyak, L. Poberezhny*, N. Zapukhlyak, L. Poberezhna Ivano-Frankivsk National Technical University of Oil and Gas, 15 Carpathian St., Ivano-Frankivsk 76019, Ukraine Abstract The methodology for calculating the throughput and operating parameters of the main oil pipelines has been improved, taking into account small il leaks. Re ulari ies of the change in oil pressur at the b ginn g and end of e ch of the sections of the pipeline, the volumetric flow rate of liquid in the pipeline from the lin r dimensio s of the through holes and their l cati n on the pip lin r ute have been identif ed, a d the corresponding mathematical models ave been dev lope . The degree f environmental pollution duri g oil nfiltration into the oil is esti ed t k ng int account the physical properties of oil, the profile of the pi e ine route, the vo umetric productivity through the hole and the duration f the oil leak. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review u der responsibility of e conference Guest Editors K ywords: pipelin depressurization; emergency oil leakage; hydraulic location of oil leakage; ecological safety of pipeline transport. 1. Introduction The problems of safe operation of oil pipelines are associated with the properties of raw oil, namely: oil is a combustible product, so that there is always a f r h zard; il vapors are characteriz d by a toxic effect on humans and anima s; oil pollution of t lithosphere leads to the loss of s il fertile prop ti s etc. There are many reaso lea ing to the violation of the integrity of pip lines, accompanied by oil leaks. The most common aso s include: mechanical damage; corrosion (external and internal); welded joint defects; operational errors; natur l phe omena etc. ((Karpash et al. (2007); Yavorskyi et al. (2016); Poberezhnyi et al. (2017); Doroshenko et al. (2020); Chudyk et 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Assessment of the degree of environmental pollution in emergency situations on main oil pipelines S. Hryhorskyi , О. Ivanov, O. Bortnyak, L. Poberezhny*, N. Zapukhlyak, L. Poberezhna Ivano-Frankivsk National Technical University of Oil and Gas, 15 Carpathian St., Ivano-Frankivsk 76019, Ukraine

* Corresponding author. Tel.: +380-99-702-7087. E-mail address: lubomyrpoberezhny@gmail.com * Corresponding author. Tel.: +380-99-702-7087. E-mail address: lub myrpoberezhny@gmail.com

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review u der responsibility of t conference Guest Editors

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 10.1016/j.prostr.2022.01.044