Slugging flow is an unstable flow phenomenon that occurs in multiphase flowlines under certain conditions and poses considerable problems in terms of pipeline design and operability. Near horizontal flowlines at low to moderate gas and liquid flowrates generally operate in one or more slugging flow regimes which are characterised by alternate periods of high liquid production rates (slugs) followed by high gas production rates (gas bubbles). Since the instantaneous flow of each phase can be many times greater than the average, and can persist for relatively long periods of time, they can impose a significant disturbance on the operation of a process plant. A dynamic model has been developed of an offshore oil and gas processing complex. This paper describes the key features of this model and the way in which it has been used during the design phase of a satellite field development to assess the operability of a multiphase pipeline. Results are presented which demonstrate that the dynamic simulation approach can be used effectively in evaluating process behaviour and control system strategies under a wide range of operating conditions.
Dynamic simulation of the effects of slugging flow on process plant: a design study
Dynamische Simulierung des Einflusses von Pfropfenstroemungen auf Prozessanlagen: Eine Untersuchung zur Konstruktion
Pipeline Engineering Symp. 1987, Petroleum Div. of the ASME ; PD-6 , Feb ; 83-94
1987
12 Seiten, 11 Bilder
Conference paper
English
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