Enhancing LNG Production Efficiency by Mitigating Warm Ships Loading Challenges

Abstract Oman Liquefied Natural Gas (OLNG) terminal faces persistent hurdles in maintaining high production rates during warm ship loading, a challenge magnified by the risk of over-pressurization in the fuel gas system. This scenario, occurring once a month on average, poses environmental threats due to potential unplanned flaring, hindering LNG throughput. Crucial to these operations are panel operators who strive to curtail flaring while sustaining production and environmental integrity. This paper unveils a strategic framework addressing the multifaceted challenges encountered during warm ship accommodation. These initiatives not only boost operational and energy efficiency but also elevate operational excellence and asset performance within the LNG terminal. One pivotal measure introduced additional activities in the Ship Activity Schedule, fostering collaborative efforts between Ship Officers, the Marine Department, and Operations Department. This collaboration streamlined risk management during Ship Tank Cool Down, offering better control over the fuel gas system and reducing flaring incidents, contributing significantly to operational excellence. Another critical initiative mandated the presence of a Marine Pilot during Cool Down Operations, ensuring prompt interventions and minimizing over-pressurization risks while enhancing operational efficiency. Technical guidelines underwent optimization, aligning with contemporary processes and technology, enhancing performance standards, asset efficiency, and operational excellence. Internal tools, including the Fuel Gas Balance Dashboard, provide comprehensive visualizations of system performance, identifying optimization opportunities and enhancing energy efficiency, further amplifying operational excellence and asset performance. A comprehensive Fuel Gas System Surveillance Tool enables in-depth performance analysis, driving continuous improvement and directly impacting asset efficiency. The implementation of these strategic measures and tools at OLNG has effectively managed warm ship loading challenges, significantly reducing unplanned flaring, preserving the environment, and maintaining high production rates. This blueprint serves as a guiding reference for LNG terminals facing similar challenges, emphasizing the significance of proactive measures and collaboration in ensuring efficient operations, minimal environmental impact, and optimized energy utilization and asset performance.