RISK-BASED INSPECTION OF CRUDE AND REFINED OIL STORAGE TANK IN INDONESIA REFINERY PLANT

A storage tank, which is used to store oil, important and high-risk equipment that requires attention its safety aspects. As a preventive measure, the government inspections of all tanks, either on regular basis (every four years) or based risk assessment. This study aims create an inspection plan for tanks at oil refinery using risk-based (RBI) method. The RBI method in this adopts API RP 581, Third Edition, 2016. Risk analysis carried out stages, including collecting technical data determining failure mechanisms, conducting analysis, finally creating interval Technical was collected studied 29 designed according 650 standard. determined mechanisms tank shell are atmospheric corrosion, general corrosion under insulation. results showed have medium risk, with 16 units category 3C 13 2C. planned methods visual inspection, UT thickness flaw thickness, CUI, most intervals reaching 10 years. Based study, it concluded more effective efficient than specific time 4 years).