Quantitative risk assessment of static equipment in petroleum and natural gas processing station based on corrosion-thinning failure degree

Quantitative risk assessment method for station static equipment based on the degree of corrosion-thinning failure is proposed. The corrosion rate and failure consequences are divided into 5 severity grades. A corrosion-thinning risk assessment matrix is established. The method is based on the corrosion-thinning intrinsic safety of the petroleum and natural gas process station and avoids the risk evaluation error caused by the mismatch of the failure database. It can analyze the severity of corrosion thinning, which is the improvement of the existing risk assessment method for static equipment. The quantitative risk assessment is applied to DA treatment station in T Oilfield. Combined with the current status of operation and management of the station, it is determined that the risk level of corrosion and thinning failure is medium.