... and liquid, operating pressure, temperature, velocity, pipe deviation and fluid properties. The principal method of determining flow patterns has been by visual observation through a transparent viewing section and more recently with tomography equipment which typically has limited resolution...

.... IFE has recently developed and demonstrated scale-up rules for the most basic multiphase pipe flows. Earlier, the scaling rules were tested by designing experiments in IFE's medium-scale multiphase flow loop to compare with data from SINTEF's largescale facility. The focus of this paper...

... ABSTRACT In this work, an X-ray system consisting of six cameras was used to obtain instantaneous cross-sectional phase distribution of gas-liquid flow in annuli. The horizontal annulus test section, made of PVC, consisted of an outer pipe of 99 mm inside diameter and an inner pipe of 50 mm...

... ABSTRACT A comprehensive three-phase flow campaign, funded by Equinor as part of the Tanzania gas field development project [1] [2] [3], was carried out in the SINTEF Large Scale Loop at Tiller in 2017–2018. The experiments were conducted in a 94 meter long 8" pipe, with 2.5° inclination at 60...

... are sand particles, hydrates and wax. Depending on the flow rate, fluid condition, pipe size and sand properties, sand particles can either move along as suspended particles in the flow (dispersed), scouring along the pipe wall, as a bed of particles (dunes) or remain stationary. At high flow rates of oil...

... ABSTRACT One-dimensional models of multiphase flow in pipes are based on averages over the pipe cross section, and traditional models rely on bulk velocities, i.e., a single, uniform velocity for each fluid layer. The OLGA HD stratified flow model provides a significant improvement by re...

... carried out during project execution to qualify the liquid distribution philosophy undertaken to guarantee liquid distribution in the cooler inlet header. Significant effort was put into ensuring sufficient MEG distribution to all cooling pipes to avoid hydrate growth under prolonged operation within...

... is focused on the verification and validation of CFD results for multiphase flow of gas and liquid through vertical pipe sections. The open source CFD framework OpenFOAM has been used for this purpose, employing two different multiphase flow methods. The Volume of Fluid method can be used for the capturing...

... ABSTRACT An experimental study of vertical two-phase flow was conducted at the SINTEF Multiphase Laboratory using a 51 meter long 4" pipe at system pressures of 45 and 70 bara. This campaign was conducted as part of a project aimed at improving the physical models in LedaFlow for near-vertical...

... experiments in low liquid loading flows with high gas rates were conducted in the Large Scale Loop at the SINTEF Multiphase Flow Laboratory. The experiments were conducted in both a near-horizontal 8" pipe, and a vertical 4" pipe, where particular emphasis was put on studying the effect of water cut...

... Abstract Accumulation of liquid, as oil and/or water, at the bottom of an upward inclined pipe is known to be the source of many industrial problems, such as corrosion and terrain slugging. Accurate prediction of the critical gas velocity that can unload the liquid accumulation is of great...

... the effect of centrifugal force on slugs passing around the bend. Finally the flow development downstream the bend and how it alters as it goes around the bend predominantly forming stratified and slug flow is discussed. Introduction Most of the process industries have long pipe lines to transport...

... Abstract Two-phase slug flow is a common occurrence in wells, riser pipes and pipelines of crude oil and natural gas systems. Current predictive tools for two-phase flow are based on either the mixture model or the mechanistic two-fluid model. The latter one, also called phenomenological model...

... Abstract This experimental investigation was conducted in horizontal and inclined acrylic pipe of 30.6-mm ID. The pressure gradients were determined in the dispersed flow regions with flow conditions of 0.8 – 1.6 m/s mixture velocities and 0.05 – 0.9 input oil volume fractions...

... Abstract This paper reports an effort to investigate the effect of flow velocities and inlet configurations on horizontal oil-water flows in a 32 mm ID acrylic pipe using water and an aliphatic oil (Exxsol D140) as test fluids. The flows of interest were analysed using pressure drop...

... Abstract An experimental study on three-phase viscous oil flow has been conducted at IFE's Well Flow Loop in a 25 m long 10 cm I.D. pipe at +1 degree. In the experiments the gas phase is a dense gas (Sulphur hexafluoride, SF6) at 7.5 bar pressure, the oil phase is a mixture of Primol 352...

... surveillance prediction multiphase flow simulator viscosity gas superficial velocity flow pattern slug flow production monitoring liquid holdup pressure gradient experiment bhr group 2015 oil viscosity pipe superficial velocity Viscous liquid-gas flow in horizontal pipelines: experiments...

.... Such maps were created for various pipe diameters, pipe angles, liquid densities, gas densities and liquid viscosities. In addition, the effect of the oil flow rate in three-phase flows was measured. This paper provides an overview of the experimental test campaign and gives some examples of the key results...

... ABSTRACT Slug flow is one of the commonly encountered liquid and gas two-phase flow patterns. The accurate prediction of its behaviours is crucial for practical engineering applications. Liquid viscosity and pipe diameter are found to have significant impacts on slug frequency, but available...

... simulation cfd simulation flowline reservoir surveillance production logging restart process pipe olga code pipeline oil viscosity flowrate Cold restart of viscous multiphase flowline by hot water flushing Z Yang Statoil ASA, Norway J Velthuis, J Veltin, A Twerda TNO, The Netherlands ABSTRACT...