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Keywords: diameter
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Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-007
... the nuclear industry, e.g. Hewitt (2), have also been helpful, but still generated from small- scale test facilities (typically up to 1-inch diameter, and a few feet long). The advent of Tulsa University Fluid Flow Projects (TUFFP) in 1973 was symptomatic of the view that a minimum of 2-inch pipe diameter...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-203
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-245
... for pipe inclination, diameter, and surface tension effects. NOMENCLATURE D Pipe inner diameter (m) Fr Froude number Ku Kutateladze number g Gravitational acceleration (m/s2) Usg Superficial gas velocity (m/s) l Liquid density (kg/m3) g Gas density (kg/m3) Surface tension (N/m) 1 INTRODUCTION As flow...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-323
... kick tolerance regions, which is normally ignored for drilling applications. © BHR Group 2018 Multiphase 11 323 2 NOMENCLATURE g = Gravity h = Well depth ID = Internal diameter L = Gas kick length L Dispersed kick length P = Pressure Q = Flow rate v = Velocity L = No-slip liquid holdup Density...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-405
... described in detail in [11]. Therefore, only a brief listing of the relevant components is provided here: 42 m long pipe loop comprised of a 194 mm inner pipe diameter (ID) main testing circuit, and a centrifugal pump 762 mm long mild carbon steel pipe spool with three 52 mm ID (2 inch NPS) ports used...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-103
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-473
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-D3
... in literature for multiphase flows are discussed in Soepyan et al. (2014). In that paper, the authors propose and evaluate the extension of Oroskar and Turian (1980) model to multiphase flows with direct substitution of pipe diameter with different length scales and conclude that best predictions are when...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-D4
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-G3
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-G5
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 8th North American Conference on Multiphase Technology, June 20–22, 2012
Paper Number: BHR-2012-A013
... 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...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 8th North American Conference on Multiphase Technology, June 20–22, 2012
Paper Number: BHR-2012-A016
... diameter liquid velocity bhr group 2012 correlation By-pass pigging, as compared to normal pigging, reduces the pig-generated liquid slug. CFD (Computational Fluid Dynamics) was applied to understand the flow in and around the by-pass pig under both single phase and multiphase flow conditions...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 7th North American Conference on Multiphase Technology, June 2–4, 2010
Paper Number: BHR-2010-B1
...A method for reducing the negative effects of long slugs U Kadri, R A W M Henkes, R F Mudde, R V A Oliemans Department of Multi-Scale Physics, Faculty of Applied Sciences Delft University of Technology, The Netherlands ABSTRACT Long liquid slugs reaching several hundreds pipe diameter may appear...

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