Global Journal of Researches in Engineering, G: Industrial Engineering, Volume 23 Issue 2

set at 0.8% for the period between 01/01/2019 and 01/01/2023 for oil pipeline. Table 1 shows the operational parameters and related ranges in the Sarir field over the period. Table 1: Experimental Ranges in Terms of Uncertain Parameters b) Method In this work, the variables considered are those most critical to CPR; temperature, pressure, flow rate, and pH. The experimental design was conducted according to the CCD method in Minitab 17 program for four factors and one response. CCD determined total experimental runs of 31 as shown in Table 2. To carry out these experiments, the reality was simulated using Aspen HYSYS V10 by creating a 514 km pipeline, filled with the chemical composition of raw oil, and calculating the corrosion penetration rate using the De Waard 1995 method, as shown in Figure 1. Fig. 1: Simulation of the Oil Pipeline using Aspen HYSYS Table 2: Design of Experiment and its Actual Values of CPR Range Unit Notation Parameters No. Upper value Lower value 130 100 ºF T Temperature ( ºF ) 1 580 360 psig P Pressure (psig) 2 240,000 150,000 bbl/day FR Flow Rate (bbl/day) 3 5.65 5.51 - pH pH 4 Run Order Temperature ( ºF ) Pressure (psig) Flow Rate (bbl/day) pH 1 115 470 240,000 5.58 2 115 470 195,000 5.58 3 115 360 195,000 5.58 4 100 360 240,000 5.65 5 115 580 195,000 5.58 6 130 360 240,000 5.65 7 115 470 195,000 5.51 8 130 360 150,000 5.51 9 115 470 195,000 5.58 10 115 470 195,000 5.58 11 100 580 150,000 5.65 12 100 360 150,000 5.51 13 100 470 195,000 5.58 14 100 580 240,000 5.51 15 115 470 195,000 5.58 16 100 360 150,000 5.65 17 130 580 150,000 5.51 © 2023 Global Journals Global Journal of Researches in Engineering Volume XxXIII Issue II Version I 31 Year 2023 ( ) G Modeling and Optimization of Corrosion Penetration Rate in Crude Oil Pipeline using Response Surface Methodology based on Aspen HYSYS Simulation Software