Consequence assessment of separator explosion for an oil production platform in South of Iran with PHAST Software

Non-stop growth in oil, gas and petrochemical industries and dramatic impact of corrosion due to reducing the useful life of equipment need to manage risk and analyze consequences of possible accidents make more clear. Corrosion can counted as the most threaten factor for reducing the life of equipment in oil, gas and petrochemical industries. Corrosion damages risk analyzing and consequences assessment of probable failure play remarkable role in corrosion management systems. Corrosion damage might cause to failure due to leakage. Initial visual inspections of the test separator ME-03 shows widely scattered local thin areas at the bottom of pressure vessel. This two-phase separator (oil and gas) is one of the most critical equipment on old Nowrooz oil production platform in Bahregan district. The critical role of pressure vessel on oil production delayed inspection periods for more than 10 years and moreover this pressure vessel operate at 225 psi, 100 °F and the volume of 860ft3 liquid that consequence assessment of this object make more important. Consequence of probable explosion of pressure vessel due to corrosion progress analyzed through the commercial PHAST software. This paper look forward consequence assessment of explosion scenario with the PHAST software then provide a procedure for rerate of ME-03 for future safe servicing.