Modeling Slug Flow in Looped Pipelines

Modeling Slug Flow in Looped Pipelines

Publish Date: 11th June 2014

Author: Kin Yin Chee, Alastair Walker (INTECSEA, PE), Zack Westgate (Advanced Geomechanics)

Conference: North America Multiphase Technology Conference 2014

Looped pipelines are evaluated as a method of reducing outlet flow rate fluctuations in multiphase pipelines operated in slug flow. The interference between the slug frequencies of the two pipelines is shown to be largely destructive in nature and acts to reduce outlet flow rate fluctuations. This configuration is shown to also provide advantages in the long-term operation of the pipeline system when pigging, corrosion, and leak consequence issues are considered for flow assurance design. The additional cost of a second pipeline may be minimal in terms of total project economics. A design example is given to illustrate the advantages of slug flow superposition.

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