... group mpt2019 concentration interface efficiency upstream oil & gas gas hydrate formation particle water droplet crystallization closure parameter supersaturation flow assurance hydrate formation mass transfer Predicting gas hydrate formation during three-phase gas- (water-in-oil...

... platform to the refinery, and in pipe separators where low velocities exist. fluid dynamics pipe flow dispersion evolution separation droplet mechanistic model voulgaropoulo prediction diameter average dense-packed zone interface upstream oil & gas artificial intelligence...

... with a total length of 8.5 m. Results reveal interesting interactions between the co-flowing liquid phases. The velocity gradients at the interface are enhanced at high pipe inclinations for upward flows as the oil and water velocities increase and decrease, respectively. This also has a direct effect...

... in the oil layer and water when performing measurements in the water layer. This significantly reduces refraction in single-phase regions of the flow. However, the error is expected to be much larger for measurements near the interface, where the oil and water phase fractions differ from unity. 2.2...

.... They have the same densities but different viscosities, which are: = 1 / 2 : = 1, = 0.875 and = 0.75. The aim is to investigate the situation where water is used to transport oil in pipelines. The liquid- liquid interface produces remarkable turbulence modulation inside the channel compared...

... 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 of the liquid-gas interfaces, while the two fluid model approach is typically...

... temporal resolution providing turbulence spectra at given points in the flow. This approach shows that a wavy interface induces dynamic fluctuations in the gas flow at the exact same frequency as the dominant wave frequency. This is a direct consequence of the continuity principle. Also, in the higher...

... implementation is made by using Binary trees and Prüfer encoding. As a result two empirical correlations are presented for the droplet concentration at the gas-liquid interface and the profiles decay coefficient. The correlations are developed for two-phase gas-liquid flows and are expressed in terms of three...

... at the interface ST stratified flow in-put water cut fluid velocity superficial fluid velocity density differential pressure horizontal distance between pressure taps (m) angle of pipe inclination dispersed water in oil dispersed oil in water dispersed oil in water and water phase dispersed oil...

... and viscosities of the two fluids are highly separated. Additional parameters, such as interfacial forces, wetting characteristics, and phase inversion, represent important factors due to the effect on the flow pattern transitions, interface curvature and droplet formation. A number of complex geometrical...

... simulation reservoir surveillance simulation pressure profile equation taylor bubble bhr group 2013 production monitoring production control interface upstream oil & gas multiphase 16 pressure distribution mean velocity pressure variation spool Behaviour of slug flow and pressure force...

... full 3-D equations by integration, under the assumption of a slowly evolving flow, i.e. a flow in which the interfacial slope is assumed to be small. However, the lack of an underlying solution for the velocity field renders the crucial wall and interface friction terms undetermined. It is customary...

... ABSTRACT This paper reports on an experiment aimed at obtaining detailed velocity fields in a wavy liquid layer in stratified air/water pipe flow. By combining Particle Image Velocimetry (PIV) with an interface detection technique, the velocity field is resolved from the pipe wall...

... data to validate their models for gas distribution in stratified flow. gas entrainment upstream oil & gas liquid holdup production logging usl 0 entrainment usl 1 fraction liquid layer gas entrained fraction production control reservoir surveillance bara interface production...

... is relatively low umix 1≤m/s. It is found that for higher mixture velocities the phase fraction has a more radial distribution that is not captured by the model. flow metering bhr group 2009 production monitoring sedimentation velocity liquid-liquid interface mixture velocity fluid dynamics...

... fluctuations at the interface are responsible for the formation of slugs. hanratty artificial intelligence reservoir surveillance multiphase production technology 14 slug frequency production monitoring prediction pipe flow rate bhr group 2009 fluctuation production logging production...

... interface pipeline multiphase flow production monitoring stratified flow model experimental data equation closure flow model flow regime upstream oil & gas artificial intelligence slug flow production logging reservoir surveillance correlation multiphase production technology...

... ABSTRACT A new theoretical model has been developed for determining flow regime transitions in two-phase gas-liquid flow in horizontal pipes. The theoretical model provides a physical explanation for the development of the perturbed interface of the stratified flow into a roll wave or slug...

... interfacial friction cfd simulation interface multiphase production technology 13 channel flow velocity distribution pressure gradient wall friction Comparison of the Biberg analytical depth-integrated two-phase stratified flow model with CFD simulations K Holmås, D Biberg Dept. of Process...

... in the slug flow regime. production control piv measurement production monitoring liquid phase multiphase production technology 13 interface flow regime velocity profile inclination reservoir surveillance production logging gamma measurement bhr group 2007 stratified wavy flow measurement...