..., and in subsequent operations, to instrument and monitor flow and fluid behaviour both for the benefit of the operation and for validation and improvement of models used in design. diameter pipe production logging instrumentation multiphase 11 flow metering bhr group 2018 upstream oil & gas...

... ABSTRACT This study investigates experimentally and theoretically the existence slugs for vertical co-current two-phase flow in large diameter vertical tubing and risers. The slug flow pattern implies the presence of Taylor bubbles separated by hydraulically sealed liquid slugs. Previous...

... was found for angles from near-horizontal to vertical. The model was compared with published wellbore load-up data and was found to give as good or better predictions than the Turner model. The new model also properly accounts for pipe inclination, diameter, and surface tension effects. pressure drop...

... along the annulus. The study is limited to drilling with water-based muds. diameter well control mud circulation rate annular pressure drilling society of petroleum engineers bhr group 2018 fluctuation weight method psia bottomhole pressure upstream oil & gas circulation rate...

.... solid concentration upstream oil & gas karabela model slurry particle size distribution bhr group 2018 flow loop spatial particle size distribution deposition velocity prediction concentration concentration profile pipe invert application sample concentration particle size diameter...

... equilibrium finite element model friction force diameter oversize experimental result bhr group 2016 bypass pig pipeline pigging normal force upstream oil & gas geometry frictional force analytical model coefficient experiment Frictional forces during pigging of multiphase pipelines M H...

... to these models include fluid properties such as density, viscosity and surface tension, flow geometry such as diameter and inclination of the pipeline, and operating conditions such as superficial gas and liquid velocities. The outputs may be flow patterns, pressure gradients, liquid hold-up, etc...

... to multiphase flows with direct substitution of pipe diameter with different length scales and conclude that best predictions are when the choice of length scale is film height. This result provides useful information and insight into the problem and urges for a thorough analytical development of the model from...

... with experimental observations. The models' predictions are most accurate when the liquid film height is used as input. upstream oil & gas particle single-phase model characteristic length scale production control stratified flow prediction input characteristic length scale diameter production...

... of the equilibrium liquid film (m 2 ) d pipeline internal diameter (m) d 1 pipe inner diameter of a single pipeline system (m) d 2 pipe inner diameter of dual pipeline system (m) E mean of outlet liquid flowrate (m3/s) FI liquid flowrate fluctuation index FI1 liquid flowrate fluctuation index of a single pipeline...

... with diameter 189 mm of seven main sections: A 30 m long downward inclined (-5º) section A 110 m long horizontal line (diameter 189 mm) A 25 m long upward inclined (+5º) section A 25 m long downward inclined (-5º) section A 144 m long horizontal line A 65 m long downward inclined (-2º) section...

...An experimental study on polymeric type DRA used in single- and multiphase flow with emphasis on degradation, diameter scaling and the effects in three-phase oil-water-gas flow M Langsholt Institute for Energy Technology (IFE), Norway ABSTRACT In experimental studies using polymeric type drag...

... superficial velocity. The experiments will include three main measurements: visual observation of the phenomenon, isokinetic sampling of the droplet stream along the vertical diameter and pressure gradient. 2. EXPERIMENTAL SETUP The experiments were performed in the medium-scale flow loop located at SINTEF...

... diameter liquid velocity bhr group 2012 correlation CFD modeling of the flow around a by-pass pig A Singh Shell Projects & Technology, The Netherlands R A W M Henkes Shell Projects & Technology, The Netherlands Delft University of Technology, The Netherlands By-pass pigging, as compared to normal...

... slug frequency slug flow flow rate production monitoring hanratty liquid flow rate phase separator plate inlet section upstream oil & gas production control bhr group 2010 pipeline transient behavior horizontal pipe slug catcher long slug diameter negative effect slug slug...