Қазақстанның мұнай-газ саласының хабаршысыҚазақстанның мұнай-газ саласының хабаршысы2707-42262957-806XKMG Engineering10886410.54859/kjogi108864Evaluating integrity of Storage Tank Bottoms based on advanced MFL/ET scanning: Use Case in KazakhstanUaliyevDaniyarualiiev03@gmail.comhttps://orcid.org/0009-0001-3437-8795MirzoevAbdugafforgmirzoev@rosen-group.com812204202517022026Copyright © , Ualiyev D., Mirzoev A.<p><strong>Background:</strong> Ensuring the structural integrity of aboveground storage tanks (ASTs), especially their bottoms, is critical for the safe and efficient operation of oil and gas facilities. Traditional inspection methods often fail to detect early-stage corrosion and defects.</p>
<p><strong>Aim:</strong> This study aims to evaluate the effectiveness of advanced Magnetic Flux Leakage (MFL) and Eddy Current Testing (ET) techniques for assessing AST bottom integrity and optimizing predictive maintenance strategies in Kazakhstan.</p>
<p><strong>Materials and Methods:</strong> A dataset of 27 ASTs across different regions of Kazakhstan was analyzed using ROSEN TBIT Ultra technology and ROSOFT for Tanks software. Over 97,000 anomalies were detected and categorized by type, location, and corrosion depth. Analytical comparisons were made across tank sizes, regions, service life, and presence of galvanic protection systems.</p>
<p><strong>Results:</strong> The results indicate a strong correlation between anomaly density and tank service life, volume, and environmental conditions. MFL/ET scanning proved more effective than traditional ultrasonic methods in detecting internal and external corrosion. The application of galvanic protection showed only partial reduction in corrosion rates. Systematic scanning significantly enhanced defect localization and maintenance planning.</p>
<p><strong>Conclusion:</strong> The integration of MFL and ET into RBI strategies allows for early detection of defects, optimized maintenance, reduced downtime, and enhanced safety. This approach is especially beneficial for aging infrastructure in Kazakhstan’s oil and gas industry.</p>Storage tanks, MFL, Eddy Current Testing, Kazakhstan, non-destructive testing, ROSEN TBIT Ultra, corrosion detection, predictive maintenance, risk-based inspection, tank integrity.резервуарлар, MFL, құйынды ток, Қазақстан, бұзбайтын бақылау, ROSEN TBIT Ultra, коррозия, болжамды қызмет көрсету, тәуекелге негізделген инспекция, түбінің тұтастығы.резервуары, MFL, вихретоковый контроль, Казахстан, неразрушающий контроль, ROSEN TBIT Ultra, коррозия, прогнозное обслуживание, инспекция по рискам, целостность резервуара.[1. Oil product spill in Norilsk, May 29, 2020: alleged reasons and possible environmental impact. – ResearchGate. – Available at: https://www.researchgate.net/publication/373680243][2. Greenpeace International. Remember the Norilsk oil spill? Well, the polluters will pay. – 2021. – Available at: https://www.greenpeace.org/international/story/46429][3. ГОСТ Р 52630–2012. Стальные сварные сосуды и аппараты. Общие технические условия. – [PDF document]. – Available at: https://www.emkostnoe.ru/gostu/36.pdf][4. Technical Regulation of the Republic of Kazakhstan "On requirements for oil tanks", Order No. 23068 dated 01.01.2021. – Available at: https://adilet.zan.kz/rus/docs/V2100023068][5. Kiselev V. A. et al. Materials for Oil Spill Prevention and Cleanup: A Review. – Materials, 2022, Vol. 15, No. 20. – Article 7362. – Available at: https://www.mdpi.com/1996-1944/15/20/7362][6. NVINDT. Magnetic Flux Leakage – Non-destructive Testing. – Available at: https://www.nvindt.com/magnetic-flux-leakage-non-destructive-testing/][7. OneStopNDT. The Truth About Magnetic Flux Leakage As Applied to Tank Floor Inspections. – Available at: https://www.onestopndt.com/ndt-articles/the-truth-about-magnetic-flux-leakage-as-applied-to-tank-floor-inspections][8. Wikipedia. Magnetic Flux Leakage. – Diagram. – Available at: https://en.wikipedia.org/wiki/Magnetic_flux_leakage#/media/File:Magnetic_Flux_Leakage_Principle.png][9. Rosen Group. TBIT Ultra – Tank Bottom Inspection Service. – Available at: https://www.technologycatalogue.com/product_service/rosen-tank-bottom-inspection-service-tbit-ultra][10. Himstalcon. Recommendations to Improve the Reliability of Steel Vertical Cylindrical Tanks. – Available at: https://www.himstalcon.ru/articles/rekomendatsii-po-povyisheniyu-nadezhnosti-stalnogo-vertikalnogo-tsilindricheskogo-rezervuara][11. StrategNK. Oil Spill in Norilsk: Analysis and Consequences. – Available at: https://strategnk.ru/about/stati/statya1/statya1/]