... and is restricted mainly to 2-phase gas-liquid regimes (1, 2). information high pressure application bhr group mpt2019 production control production monitoring pipe upstream oil & gas multiphase flow flow regime production logging digital reconstruction frequency slug flow different time...

... flow is considered as a gas-liquid slug flow, where the liquid is a water-in-oil emulsion. Closure parameters for the model are thoroughly discussed and the model trend is validated against experimental results obtained in a flow loop. Mass and heat transfer limitation processes are discussed in terms...

... literature liquid holdup inclination multiphase flow simulator slug flow experimental data correlation Multiphase flow simulator for production & hydrate management Improvements and benchmark against experimental data with real fluids Christina Tzotzi, Elyas A. Abubeker and Angela De Leebeeck...

... main flow regimes are observed: separated, intermittent, and dispersed flow. phase distribution gas-liquid flow gas-water flow artificial intelligence configuration interfacial perimeter two-phase flow annulus configuration inner pipe production control flow structure slug flow...

... ABSTRACT In slug flow modelling, the shear stress between the slug body and the pipe wall is one of the critical parameters to define the frictional pressure drop. Experiments were carried out in a 50.8-mm ID horizontal flow loop to identify the trend of the wall shear stress within the slug...

... in the industry, on an extended set of field data from a large gas-condensate pipeline with three-phase flow. A steep escarpment strongly influences the dynamics of pipeline pressure, and liquid content and outlet rates; production rates span the region of transition between separated and slug flow regimes. ‘Out...

... ABSTRACT Slug flow continues to be a disruptive influence on both design and operation of multiphase pipelines and risers. In the past, the focus was largely on slugging cycles driven by the riser or driven by large scale terrain effects which were ultimately accommodated through slug catcher...

... of applications. Multiphase flows are characterized by a broad range of scales, from the dispersed droplets at the micro scale up to macro scale free surface flows. liquid holdup fraction slug flow production control riser void fraction fraction upstream oil & gas interface hybrid model...

... information about the flow characteristics in the experiments, the pipe was equipped with ten DPcells, nine static gamma densitometers, one traversing gamma densitometer and one dual wire mesh sensor. The experiments covered all the important flow regimes (bubbly flow, slug flow, churn flow and annular flow...

... Abstract A mechanistic model has been developed for the rate of initiation of hydrodynamic slugs and has been coupled with improvements in the closure models for slug flow. The resulting Slug Tracking simulator is capable of predicting the slug frequency and slug length distribution...

... 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...

... configuration it is important to define the slug length and velocity at the inlet to correctly predict force magnitudes and frequencies. A novel approach is presented which uses a quasi-three-dimensional (Q3D) CFD method to obtain horizontal slug flow inlet boundary conditions for subsequent force prediction...

... Abstract This paper presents velocity measurements performed in hydrodynamic slug flow in a 212 m long horizontal pipe. A post-processing step has been developed to combine Laser Doppler Anemometry (LDA) measurements with liquid height measurements, such that it is possible to build (i) mean...

... slug flow. Many studies of three-phase slug flow with viscous oil have been focussing on the generic behaviour of hydrodynamics – oil-water flow regime, pressure gradient, and phase holdup (1) – (10). All of these studies were conducted with relatively small pipe diameter (<0.07m I.D.) and low gas...

... with decreasing capabilities as liquid viscosity increased. OLGA point model over predicted the slug flow pattern and under predicted the liquid holdup in this study. Introduction The oil and gas industry is increasingly looking towards unconventional resources like heavy oil (defined as petroleum liquid API...

... 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...

... gas at 4 and 8 bara. The oils were Nexbase 3080 and a mixture of Nexbase 3080 and Exxsol D80, with viscosities of 100 cP and 32 cP. The experiments focused on the transition from laminar to turbulent flow, and the transition from stratified to slug flow. The measured quantities include the liquid...

... ABSTRACT In this paper, a full 3D numerical simulation of slug flow in a horizontal pipe is presented. The numerical simulations were performed by LEMMA, using ANANAS Software code. The physical experiments used to validate the simulations were acquired in Boussens oil & gas laboratory...

... were acquired in Boussens oil & gas laboratory by TOTAL and co-workers. The simulation of the Taylor bubble flow in the spool enables to determine the pressure distributions in the elbows. slug flow evolution correspond velocity profile production logging liquid flow numerical...