...) in various concentrations to the water/air flow. Experiments were taken both without and with foam. Various measurement techniques were used: differential pressure sensors, flow visualization, and Distributed Acoustic Sensors (DAS) (fibre optics). The focus is on (growing) slugs in the horizontal flowline...

... ABSTRACT The slug capturing technique, which is incorporated in the industrial PROMPT code is used to explore the influence of entrainment of gas bubbles at slug fronts, on slug characteristics such as slug length and frequency. The computations are compared with available field data...

... ABSTRACT Predictions from multiple industrial simulators of multiphase pipeline flow are compared to field data for a hilly terrain, gas-condensate pipeline with three-phase flow. Field conditions studied include quasi-steady flow and ramp-up slugging. Some models predict excessive terrain...

... Abstract The effect of horizontal well trajectory on slug flow development was experimentally studied using a 2.0-in. ID flow loop to mimic different well trajectories. Inclination angle in the lateral section was varied ± 1° from the horizontal to simulate three well configurations, namely...

... Abstract The present work aims at investigating the performance of the LedaFlow multiphase simulator for transient terrain slugging scenarios. A number of two-phase riser slugging experiments performed at the SINTEF Large Scale Multiphase Laboratory are analyzed and simulated with LedaFlow...

... surface, combined with the Very-Large Eddy Simulation (VLES) approach to cope with turbulence. We will first discuss new results of transition from stratified to slug flow, which agree well with the data as to water hold-up and slug frequency. We will then present new results of bubbly and slug flow...

... ABSTRACT: A Lagrangian three-phase slug tracking model is demonstrated for a severe slugging case with gas, oil and water in an S-shaped riser. The model is an extension of a hybrid twophase flow scheme in which a two-fluid model formulation is used in the stratified flow region. In the slug...

... ABSTRACT Long liquid slugs reaching several hundreds pipe diameter may appear when transporting gas and liquid in horizontal and near horizontal pipes. The long slugs cause system vibration and separation difficulties that may lead to operational problems. Although mainly short hydrodynamic...

... ABSTRACT This paper reports measurements of two-phase gas-liquid slug flows in a 4-inch diameter pipe using a fast response X-ray tomography system, installed in the Well Flow Loop at IFE. The main focus of this work is phenomenological understanding of the distribution and transport of gas...

... ABSTRACT In designing control systems for stabilization of severe riser slugging by active choking, there is a need for simplified system models. In this contribution, a simplified dynamic model for riser slugging is presented, based on mass and momentum conservation equations. The performance...