Simplified Dynamical Models for Control of Severe Slugging in Multiphase Risers

In order to prevent the severe slugging flow regime in multiphase transport pipelines, active feedback control is the recommended solution. Instead of elaborated models such as CFD and OLGA models, a simple dynamical model with few state variables is required in a model-based control system. We propose a new simplified dynamical model for severe slugging flow in pipeline-riser systems. The proposed model, together with five other simplified models existing in the literature, is compared to the results from the OLGA simulator. The proposed model could be able to maintain the main dynamics of the severe slugging flow regime.