A study on the improvement of explosion-proof inspection process using process mining

Abstract

Because the offshore plant production process is extremely complicated, there are many difficulties in quality control and delivery schedule compliance. In particular, to prevent catastrophic offshore plant explosion accidents, most offshore plants since 2010 have implemented explosion-proof inspections based on IEC 60079. However, there has been little research on the improve-ment of such processes, and there is also a lack of experience in explosion-proof inspection in Korea. Therefore, in this study, the explosion-proof inspection process was analyzed by process mining using data from a quality management system. The cause of process delay was determined, and the explosion-proof inspection process was improved through an improvement algorithm. In addi-tion, it was found that cost savings, an increase in productivity, and progress improvement can be achieved throughout the entirety of the project.