...-in-water. interface upstream oil & gas inclination water phase different pipe inclination water cut velocity fluctuation mixture velocity oil-water flow information velocity profile interfacial wave oil phase pipe inclination velocity vector field flow structure bhr group 18 wc...

... Experimental data The two datasets by Elseth [2] and Amundsen [3], respectively, are complementary. Elseth presented experiments limited to horizontal flow, but spanning multiple combinations of mixture velocities and water cuts, see Table 2. Amundsen, on the other hand, presented experiments for different...

... friction velocity cross-section gas pocket production control interaction law slug flow fagunde netto velocity profile slug tail upstream oil & gas reservoir surveillance slug slug front production monitoring bhr group 2015 mixture velocity production logging friction velocity pipe...

... and a layer of water flowing underneath the oil (see Figure 4c): This flow regime is in the opposite of Figure 4b in that slugs are more governed by properties of oil (such as velocity and viscosity). d) Slug flow with severe mixing and gas entrainment: This occurs only at the high mixture velocity which...

... flow mixed at the interface. At low in-put water cut and sufficiently high mixture velocity, the water will be fully dispersed in a continuous oil phase Vice versa, at high in-put water cut and high mixture velocity, oil in water dispersion will form. The dual continuous flow regime describes...

... 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...

... for different water cuts, defined as the water volumetric flow rate divided by the total volumetric flow rate WC = Qw / QT, where QT = Qo + Qw, and mixture velocities Um = QT / A with A the cross-sectional area of the pipe. Water cuts were varied from 0.1 to 0.9 and mixture velocities from 0.25 to 1.25 m s-1...

... in the pipeline, the Darcy model provided the best prediction. enhanced recovery bhr group 2013 pipeline paraffin remediation production control mixture velocity scale remediation dynamic test complex reservoir wax remediation bitumen drilling fluids and materials heavy oil transportation...

... ledaflow upstream oil & gas multiphase flow reservoir surveillance bhr group 2013 experiment production logging mixture velocity equation entrainment diameter modeling & simulation production monitoring exp ledaflow mesh slug bubble velocity ledaflow slug Simulation...

... group 2013 mixture velocity prediction Prediction of liquid volume fraction in slugs in two-phase horizontal pipe flow with high viscosity liquid E Al-Safran Kuwait University, Petroleum Engineering Department, Kuwait C Kora*, C Sarica University of Tulsa, Petroleum Engineering Department, USA...

... and slug frequency. 2.3 Semi-empirical models A subsequent step towards estimation of the gas and liquid flow rates is implementation of models relating the flow parameters extracted from a signal and the flow rates. Two models were used in this project. The one relates slug velocity and mixture velocity...

... and the experimental pressure gradients apart from the oil continuous region at low mixture velocity where the predicted values were higher than the experimental ones. Keywords: Phase inversion; Oil-water dispersion; Two-fluid model; Entrainment fraction 1. INTRODUCTION Multiphase flow of two or more fluids...

... ABSTRACT In this paper we present experiments of oil-water flow and a simplified turbulent diffusion model which predicts phase fractions in the cross section of the pipe. We find that the model can describe the observed cross sectional phase fractions fairly well when the mixture velocity...

... is that there appear to be terms missing from the general two-fluid model formulation related to wave dynamics which are needed to reconcile two-fluid models with drift-flux models. slip velocity dp dz multiphase production technology 14 liquid-wall contribution upstream oil & gas mixture velocity...

... ABSTRACT A metering work methodology and apparatus for determining water velocity in two-phase air/ water flow under slug flow conditions at low mixture velocities are provided. The metering method proposed utilises a non-invasive clamp-on transit time ultrasonic flowmeter and nonintrusive...