... & gas pipe diameter translational velocity pressure drop existence two-phase flow production control production logging flow pattern production monitoring slug flow bhr group 2018 energy density taylor bubble holdup university of tulsa mixture velocity transition probability density...

... oil flows are actuated for a wide range of phase fractions and relatively low mixture velocities by using a multi-nozzle inlet with 1056 nozzles. High-speed visualisations show that the flow remains fully dispersed downstream the inlet only at high mixture velocities. At low velocities a continuous...

... bubbles in water and a stratified or eventually annular flow of a water-in-oil emulsion surrounded by water. These regimes depend on the mixture velocity and the local water fraction of the water-in-oil emulsion. The inversion process occurred at a high water fraction (90%). The phase inversion process...

..., respectively. An appropriate instrumentation set, data acquisition system, experimental procedure and data analysis were applied in order to reduce the uncertainty in the acquired data. slug frequency production control production monitoring mixture velocity slug flow viscosity oil viscosity...

... production control mixture velocity droplet size experiment velocity profile flow metering emulsion effective viscosity upstream oil & gas drilling fluids and materials droplet size distribution production chemistry pressure drop measurement chemical treatment drilling fluid formulation...

... system. reynolds number mixture velocity bypass pig pig velocity idelchik correlation bypass area holdup wall function liquid holdup production control pressure drop coefficient production monitoring simulation upstream oil & gas pipeline pigging bypass reservoir surveillance...

... of the model was verified against existing experimental data of an S-shaped riser test loop. The dynamic model will be further applied to improve active feedback control schemes in platform risers, in case of severe slugging problems. oscillation mixture velocity experimental data multiphase 7...