The threat of slugging to production facilities has
been known since the 70’s. This undesirable flow
phenomenon continues to attract the attention of
researchers and operators alike. The most common method
for slug mitigation is by choking the valve at the exit of the
riser which unfortunately could negatively affect
production. The focus therefore is to satisfy the need for
system stability and to maximize production simultaneously.
Active feedback control is a promising way to achieve this.
However, due to the complexity of multiphase flow systems,
it is a challenge to develop a robust slug control system to
achieve the desired performance using existing design tools.
In this paper, a new general method for multiphase flow
system stability analysis was proposed. Active feedback
control was observed to optimize slug attenuation compared
with manual choking