Қазақстанның мұнай-газ саласының хабаршысыҚазақстанның мұнай-газ саласының хабаршысы2707-42262957-806XKMG Engineering10886310.54859/kjogi108863Research ArticleOptimizing re-inspection intervals for aboveground storage tanks utilizing risk-based approach and advanced tank bottom scanningUaliyevaZhannajannadyussenova0@gmail.comhttps://orcid.org/0009-0004-7703-5145MirzoevAbdugafforgmirzoev@rosen-group.comhttps://orcid.org/0009-0009-9416-8974Kazakh-British Technical UniversityROSEN Europe B.V.241220257459712104202507112025Copyright © 2025, Ualiyeva Z., Mirzoev A.2025<p><strong>Background: </strong>Aboveground Storage Tanks (ASTs) are critical assets in the oil and gas sector, where maintaining their structural integrity is essential for operational safety, environmental protection, and cost-efficiency. In Kazakhstan, traditional time-based inspection (TBI) methods dominate, despite their inefficiency and inflexibility. The integration of Risk-Based Inspection (RBI) with advanced Non-Destructive Testing (NDT) technologies offers a promising alternative to optimize inspection intervals and improve asset management, especially considering regulatory limitations and economic pressures that intensified during the COVID-19 pandemic.</p> <p><strong>Aim: </strong>To optimize re-inspection intervals for ASTs in Kazakhstan’s oil and gas industry by integrating RBI methodologies with advanced NDT technologies, particularly ROSEN TBIT Ultra, and to compare these with traditional inspection methods.</p> <p><strong>Materials and methods: </strong>RBI methodology outlined in API RP 580 and 581, industrial data for the given tank X.</p> <p><strong>Results: </strong>The integration of RBI and advanced NDT enabled prioritization of high-risk tanks, identification of localized corrosion mechanisms, and optimization of inspection intervals. Compared to the rigid TBI schedule, the proposed approach demonstrated higher inspection efficiency, lower resource wastage, and reduced risk of catastrophic failure, while aligning with global standards and local legal frameworks.</p> <p><strong>Conclusion:</strong> By adopting RBI methodologies supported by technologies like ROSEN TBIT Ultra, Kazakhstan’s oil and gas industry can transition from fixed-interval inspections toward a predictive, risk-prioritized approach. This transition supports better asset integrity management, enhances safety, and contributes to long-term infrastructure reliability, especially critical for aging storage systems.</p>risk-based inspectionROSEN TBIT UltraNIMA Integrity Managementaboveground storage tanksnon-destructive testingmagnetic flux leakageinspection interval optimizationasset integrityтәуекелге бағытталған инспекцияROSEN TBIT UltraNIMA Integrity Managementжер үсті резервуарларыбұзбайтын бақылаумагниттік ағынды бақылаутексеру интервалдарын оңтайландыруактивтердің тұтастығыриск-ориентированная инспекцияROSEN TBIT UltraNIMA Integrity Managementназемные резервуарынеразрушающий контрольмагнитный потоковый контрольоптимизация интервалов проверокцелостность активов1.inspectioneering.com [интернет]. Inspectioneering Journal. API RP 581 Risk-Based Inspection Technology: Summary of Changes in the Newly Released Fourth Edition [дата обращения 11.02.2025]. Доступ по ссылке: inspectioneering.com/journal/2025-02-27/11449/api-rp-581-risk-based-inspection-technology-summary-of-changes-in-the-newly-rel.2.inspectioneering.com [интернет]. Inspectioneering Journal. Overview of API RP 581 - Risk Based Inspection Technology [дата обращения 12.02.2025]. Доступ по ссылке: inspectioneering.com/tag/api+rp+581.3.Al-Mitin A.W., Sardesai V., Al-Harbi B., et al. Risk Based Inspection (RBI) of Aboveground Storage Tanks to Improve Asset Integrity // International Petroleum Technology Conference; November 15–17, 2011; Bangkok, Thailand. Доступ по ссылке: onepetro.org/IPTCONF/proceedings-abstract/11IPTC/All-11IPTC/IPTC-14434-MS/152650.4.oecd.org [интернет]. OECD. Risk Governance Scan of Kazakhstan [дата обращения 03.03.2025]. Доступ по ссылке: oecd.org/en/publications/risk-governance-scan-of-kazakhstan_cb82cae9-en.html.5.hghouston.com [интернет]. The Hendrix Group Inc. The Hendrix Group [дата обращения 03.03.2025]. Доступ по ссылке: hghouston.com/risk-based-inspection.6.rosen-group.com [интернет]. Rosen Group. Asset Integrity Management and Data Management Software [дата обращения 05.03.2025]. Доступ по ссылке: rosen-group.com/en/expertise/product-and-service-finder/nima.7.Reynolds J.T. Risk Based Inspection - Where Are We Today? // CORROSION 2000; March 26–31, 2000; Orlando, Florida, USA. Available from: onepetro.org/NACECORR/proceedings-abstract/CORR00/CORR00/NACE-00690/111761.8.petrosync.com [интернет]. PETROSYNC. Risk-Based Inspection as Industrial Disaster Prevention [дата обращения 20.03.2025]. Доступ по ссылке: petrosync.com/blog/risk-based-inspection-application-in-industry/.