Evaluation of the Impact of Monoethylene Glycol and Methanol on Induction Time Performance

This study evaluates the effects of monoethylene glycol (MEG) and methanol on hydrate induction time, focusing on optimizing inhibitor concentrations to mitigate hydrate-related risks. Using Multiflash for fluid characterization and OLGA for multiphase flow simulations, the hydrate induction time was first assessed in an uninhibited system before introducing MEG and methanol at varying concentrations. The results indicate that increasing MEG and methanol concentrations generally reduces induction time, with a 10 mole% concentration of either inhibitor effectively preventing hydrate formation throughout the simulation period. The study concludes that both MEG and methanol at optimal concentrations can significantly enhance flow assurance in hydrocarbon transportation. Further research is recommended to explore the impact of other chemical inhibitors and to investigate the effects of lower MEG and methanol concentrations on hydrate induction time.