Perpustakaan Digital ITB

Flow assurance is a critical aspect of offshore oil and gas production, ensuring the continuous and efficient transport of hydrocarbons while mitigating operational risks. This study focuses on developing strategies to reduce bubbly flow and corrosion in offshore pipelines, specifically in Field X, South East Sumatra. A Transient dynamic simulator was utilized to model and analyze flow assurance challenges, including multiphase flow regimes, liquid holdup, and corrosion rates. The base case simulation identified significant bubbly flow, leading to pressure drops and reduced separator efficiency, along with an average corrosion rate of 0.172 mm/year. To address these issues, two main strategies were explored: increasing inlet pressure and injecting Monoethylene Glycol (MEG) as an inhibitor. The results indicate that increasing pressure improves flow stability but raises the corrosion rate, while MEG injection effectively reduces corrosion but has limited impact on bubbly flow. The most effective solution was found to be a moderate pressure increase of 50 Psig, balancing flow stability with minimal corrosion impact. These findings contribute to optimizing offshore flow assurance strategies, improving production efficiency, and reducing operational risks.