Supporting FLNG Design, Commissioning, and Start-Up with Dynamic Simulation Studies

Floating Liquefied Natural Gas (FLNG) facilities are increasingly recognized as a flexible, cost-effective means to develop remote gas reserves and deliver LNG directly to global markets. This paper presents the application of an advanced dynamic simulation study to support the design validation, commissioning, and start-up of a new 2.4 Mtpa FLNG facility. The study encompassed full production system modelling, with emphasis on liquefaction, cooling, fuel gas, and cargo handling systems. By simulating transient scenarios such as start-up, shutdown, emergency shutdown, and trips of critical equipment, the study delivered actionable insights to optimize operational procedures, validate safety systems, and provide design bases for critical setpoints. The work enhanced operational readiness, reduced risks, and strengthened confidence in the facility's ability to transition safely and efficiently into commercial service.