Slug flow control using topside measurements: A review

Slugging flow is a condition caused by liquid obstruction at the riser base. It exhibits cyclic behaviour. The cycle consists of protracted time no gas production riser's top, followed arrival slug with length greater than height, and ultimately breakthrough significant surge. might range from few minutes to hours, depending on system size conditions. In offshore oil production, feedback control practical cost-effective way prevent flow. To rate or pressure in pipeline, adjusting choke valve opening topside facility generally utilised as input. From standpoint, designing based data rather seabed measurements preferable. Controlling alone difficult ineffective reality, but combining it results more reliable solution. Measuring multiphase flow, other hand, expensive. All measurements-based techniques was critically reviewed necessary recommendations for enhanced performance provided. conclusion, this review acknowledged that slugging well-defined pattern, yet despite having been studied several decades, current methods still have robustness issues. Slug problems are expected become even intense future result longer vertical risers driven deep-water Exploration Production (E&P).