... 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...

... on correlations. production logging production monitoring olga-hd 2016 upstream oil & gas water cut bulk velocity simulation reservoir surveillance flow metering bhr group 18 production control elseth dispersion layer pipe interface mixture velocity pressure drop velocity profile...

... ratio is h 1 /h 2 = 1/9. They have the same densities but different viscosities, which are: λ = ν 1 /ν 2 : λ = 1, λ = 0.875 and λ = 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...

... of the liquid-gas interfaces, while the two fluid model approach is typically used for dispersed phases. In the present study these two models were combined in a hybrid model and validated using two representative test cases for the vertical pipe. For these two test cases CFD and experimental results...

... 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...

... higher local water fraction in upward inclined pipes than horizontal pipe. bhr group 2015 production control mixture velocity oil-water flow interface reservoir surveillance production logging flow pattern pipe inclination total pressure gradient stratified flow production monitoring...

... 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...

... 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...

... 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...

.... artificial intelligence upstream oil & gas production logging prediction gas entrainment reservoir surveillance interface pressure drop bhr group 2013 entrainment production monitoring production control dispersion correlation droplet experiment stratified flow modeling & simulation...

... 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...

... to field conditions. Extensive comparisons with experimental data reveal substantial model improvement. interface pipeline multiphase flow production monitoring stratified flow model experimental data equation closure flow model flow regime upstream oil & gas artificial intelligence...

... speed for the simulations. The paper also provides a selection of simulation results illustrating the advantages of performing dynamic simulations including control loops in the design phase. reservoir simulation explicit solution control system subsea system production control interface...

... 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...