Comparative Study of Several Statistical Models in Monitoring the Piping Condition in Petroleum Process

In preparation to encounter metal thinning phenomenon on the piping spools in petroleum process, a simulation statistical model which apply the best approach in determining the corrosion rate and the remaining life has been establish. Ultrasonic thickness spot measurement is the most reliable way to inspect the deterioration condition of the piping spools. The indicated data from the ultrasonic thickness spot measurement is always affected the evaluation of the corrosion rate of the piping condition. Hence, to experience a better view of the corrosion rate at the piping
spools, this study is being carried to aside the unknown effect on the varying data thickness measurement and thus, a conservative corrosion rate can be determine. The conventional and statistical approach has been practise with case study 1 and case study 2 and the result has been assessed. It is proposed that statistical methodology
more conservative than the conventional methodology with proven result that has been established as the statistical methodology offer an extra precaution in corrosion
concern.