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ACCURATE CALCULATION OF PIPELINE TRANSPORT CAPACITY

1 Abstract Gassco is the operator of the largest sub-sea transportation system for natural gas in the world. This implies selling transport capacity to shippers of natural gas. Once a pipeline is built, the physical capacity is determined by boundary conditions such as available inlet and outlet pressure. In order to achieve optimal utilization of the pipelines and hence optimal return of invested capital, it is of great importance to calculate this capacity as accurately as possible. Failing to meet booked capacities will result in penalties and poorer reputation while under estimation of the capacity can possibly trigger too early investments in new infrastructure. Both situations are strongly unwanted. Gassco has therefore developed a well proven methodology for transport capacity calculation, which will be elaborated in this paper.