Naslov
Statistical analysis of pipeline spills in Croatia

Autori
Novak Mavar, K ; Žbulj, K. ; Hrnčević, L. ; Simon, K.

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Mathematical methods and terminology in geology 2022 / Malvić, T. ; Ivšinović, J. - Zagreb : Rudarsko-geološko-naftni fakultet Sveučilišta u Zagrebu, 2022, 169-178

ISBN
978-953-6923-48-9

Skup
Mathematical methods and terminology in geology 2022

Mjesto i datum
Zagreb, Hrvatska, 24.10.2022. - 25.10.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pipeline transport ; oil spill ; gathering pipeline ; transmission pipeline ; statistical tools

Sažetak
Petroleum upstream activities pose a certain risk to the environment. Pipelines, as the most efficient hydrocarbon transport means, are irreplaceable in the petroleum industry activities. Corrosive media being transported contributes to a higher risk of pipeline failure and resulting release. Prevention and risk mitigation approaches require proper maintenance and inspection of pipelines. Continuous statistical tracking and identification of pipeline sections with the highest spill frequency is required. For that purpose, descriptive statistics are commonly used. Time series data analyses allows trends to be observed and future results to be predicted. The paper presents the practical application of statistical methods in pipeline spills analysis in the context of oil and gas production in the continental part of Croatia. The analysis covers a ten-year period. To enable comparison with the CONCAWE methodology, only leakages ≥ 1 m3 were considered and presented. The negative trend of spill occurrence is consistent with the CONCAWE results. Unlike the CONCAWE Report on European cross-country oil pipelines, where 88 % of all accidents are caused by third party activities, while corrosion and mechanical failures account for 5 % and 2 % respectively, in the case of Croatian gathering and transportation pipelines, more than 70 % of spill accidents were caused by corrosion. The high age of pipelines and exposure to aggressive and corrosive media stand out as the main failure causes. However, a slight negative trend has been observed, which is due to reconstruction/replacement of critical pipeline sections.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA