Perpustakaan Digital ITB

This study focuses on analyzing the impact of changes in valve diameter on the corrosion rate in pipelines used for Carbon Capture and Storage (CCS) injector wells. The research investigates various scenarios to understand how different valve diameters influence corrosion rates, hydrate formation, and flow regimes along the pipeline. A dynamic multiphase flow simulation model was employed to simulate various choke opening percentages and their corresponding effects on corrosion and flow behavior. The findings indicate that valve diameter adjustments did not significantly affect the gas flow rates, which remained consistent across all scenarios. Corrosion rates were observed to be more pronounced in pipelines exposed to higher temperatures, with a noticeable difference in the corrosion rate between pipelines 3 and 4. Hydrate formation was found to be non-existent in the studied conditions due to the pipeline's temperature being higher than the threshold required for hydrate formation. The flow regime within the pipeline was predominantly stratified and subcritical, indicating stable and calm flow conditions. This research provides valuable insights for optimizing pipeline designs in CCS projects, particularly in minimizing corrosion and ensuring operational efficiency.