... assurance transport model conservation equation diameter simulation fraction multiphase flow model hydrate former particle 1D Numerical Simulations of Hydrate Formation and Transport in Oil-Dominated Systems with a Population Balance Framework M.A. Pasqualette, J.N.E. Carneiro ISDB FlowTech G.G...

... control experimental data correlation production logging multiphase flow production monitoring entrainment fraction droplet entrainment two-fluid model equation prediction wave celerity pressure drop superficial gas velocity reservoir surveillance upstream oil & gas entrainment rate...

... upstream oil & gas fraction reservoir surveillance bhr group mpt2019 eccentricity production logging pipe production monitoring liquid holdup x-ray tomography tomography outer pipe Flow structures of gas-liquid slug flow in annuli using X ray tomography R Ibarra*, O Skjæraasen, J Nossen...

...). Dispersion viscosities derived from pressure drop measurements increased with higher dispersed phase fraction. However, the relative increase in viscosity was considerably less for the condensate – MEG system when compared with the model system. For all systems, a peak value of the viscosity was reached...

... to account for the effect of gravity, which limits the film thickness for lower gas rates. Oil droplets are more effectively transported by the turbulence in the gas, so the liquid film on the pipe wall tends to have a lower aqueous fraction than the liquid layer in the bottom of the pipe. In the general...

... and predictions from commercial software. NOTATION A Area m2 C Wax concentration kg/m3 Cwb Wax concentration at the bulk kg/m3 Cws Wax concentration at the interface kg/m3 De Effective molecular diffusivity of wax in oil m2/s Dwo Molecular diffusivity of wax in oil m2/s EA Activation energy J/mol Wax fraction...

... and environment hydS - heat of hydrate formation T - temperature eqT - equilibrium temperature t - time x - horizontal distance subT - subcooling v - velocity - shear rate - flowline inclination - base emulsion viscosity - mass density - two phase pressure drop correction factor hyd - volume fraction...

... flow and slug flow in vertical pipes. From a physical interpretation point of view, the coupling in the hybrid model is not problematic since the VOF model uses an indicator function for tracking the interface between the phases, which has the same meaning as a volume fraction variable in the two-fluid...

... [m/s] uF Liquid film velocity [m/s] uM Mixture velocity [m/s] USC Velocity of a spherical cap in a stagnant liquid [m/s] USG Superficial gas velocity [m/s] USL Superficial liquid velocity [m/s] We Gas Weber number gs Slug gas fraction G,C Critical gas fraction for the transition between bubbly flow...

... fraction production logging frictional pressure drop bhr group 18 test section wall roughness normalized pressure drop three-phase effect production control normalized frictional pressure drop pressure drop production monitoring droplet graph usl pipe roughness reservoir surveillance...

...Experimental studies on void fraction in slug of three-phase viscous oil flows in a near horizontal pipe Z Yang 1, B Hu 2, M Langsholt 3, L Liu 3, T K Kjeldby 1 1 Statoil ASA, Norway 2 Flow Capture AS, Norway 3 Institute for Energy Technology, Norway ABSTRACT An experimental study on three-phase...

... or pumps. For this project Kongsberg has developed a multiphase rotating machinery module in K-Spice® that allows for accurate performance predictions at varying gas volume fractions. The three inter-connected engineering tools allow for a realistic simulation environment, capturing complex interactions...

... 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...

... measurements and high-speed photography in an effort to obtain a flow pattern map, pressure gradient profiles and measures of the in situ phase fractions. The experiments reveal a particular effect of the inlet configuration on the observed flow patterns. A horizontal plate, installed at the inlet, generates...

... upstream oil & gas stratified flow production logging experiment production monitoring correlation pipe friction factor prediction reservoir surveillance bhr group 2013 slug flow multiphase flow liquid viscosity fraction pressure drop holdup production control viscosity oil turbulent...

... of the condensed liquid was approximately 90%. Thus, it was reasonable to simulate air and water as fluid in the CFD simulation. Figure 8 Inlet volume fraction of water as liquid layer in stratified flow. The stratified flow belonged to a free surface flow in which fluid layers are separated by the interface...

... ABSTRACT A continuous numerical flow model is introduced. The flow consists of a liquid and a sediment phase. The sediment is modeled as a continuum and consists of several particle fractions and sizes. The momentum equations are solved numerically with the fractional step method...

... the bubble fraction in slugs in high viscosity liquid (180–587 cp) horizontal flow. A validation and comparison study of the proposed empirical correlation with an independent high viscosity data set showed high accuracy and outperformance over the existing correlations. production logging test...

... & gas riser 1 bhr group 2013 phase split flow rate riser back pressure flowline liquid phase gas flow rate gas phase riser 2 splitter fraction liquid flow rate Two-phase flow behaviour for a single flowline with a non-symmetric splitter to a dual riser P Prickaerts Delft University...

... mineral oil and 425 600 µm glass beads were used to simulate the petroleum and sand contents, respectively. The potential use of the ultrasonic technique as a substitute for more complex phase fraction measuring instruments is then addressed. Keywords: Ultrasonic technique; visual data; two-phase...