..., intermittent flow is observed for flow in pipes with liquid velocities lower than the velocities for flow in annulus. downward flow production monitoring liquid velocity intermittent flow regime production control superficial velocity transition production logging flow regime pipe downward two...

... friction, and liquid-liquid dispersal. gas superficial velocity prediction slug superficial velocity upstream oil & gas flow regime field data holdup reservoir surveillance agreement interfacial friction liquid content bhr group 2018 multiphase 11 simulator inclination angle...

... of the cross sectional area or by hydrate particles' agglomeration and plug formation (2). flow assurance node unit cell geometry superficial velocity volumetric fraction pipe hydrate formation bhr group 2016 dispersion particle formation rate heat transfer slug flow hydrodynamic liquid...

...]. application pipe flow rate flow parameter reservoir surveillance multiphase 10 flow metering production monitoring multiphase mixture upstream oil & gas superficial velocity gas superficial velocity pressure gradient production logging bhr group 2016 liquid superficial velocity multiphase...

... mechanistic models for better prediction of pressure gradient and liquid holdup. Also, present flow regime transition model can be applied to all inclination angles. international journal production monitoring inclination angle superficial velocity flow regime transition model taitel barnea...

... flow simulator OLGA. superficial velocity displacement bhr group 2014 production control upstream oil & gas experiment scenario hw water fraction production logging local water fraction measurement displacement experiment local water fraction scenario front propagation velocity...

... oscillations at riser base and slugging frequencies. The experimental results are compared with simulations with a multiphase flow simulator. upstream oil & gas production monitoring viscous liquid experiment superficial velocity amplitude si 0 production logging standard deviation liquid...

... the multiphase flow properties of the system (gas and liquid). Current modeling approaches treat the condensed phase (including water and oil) as a homogeneous mixture, with hydrate formation simply augmenting the bulk phase properties (8–11). superficial velocity flow model holdup pipeline length...

... are solved for each phase. In the oil and gas industry this model is reduced to 1D, and is commonly referred to as the "Mechanistic Model". slug production control interface slug flow slug frequency superficial velocity experiment lakehal production logging void fraction holdup production...

... cell, in a pipeline. This pipeline segment must then be joined with other pipeline segments upstream and downstream of it to form a ‘steady-state’ model for the pipeline. objective function simple model drift-flux model small perturbation equation reference frame superficial velocity...

... production control multiphase 7 slug holdup reservoir surveillance slug region bubble flow slug catcher transition nitrogen gas slug flow positive slope pipeline transient behavior danielson flow pattern map superficial velocity holdup drift-flux model bhr group 2010 slug body...

... that a ± 50% slug length uncertainty can result up to 40% uncertainty in pressure drop predictions for some operating conditions, and almost no uncertainty for others. bhr group 2010 sensitivity upstream oil & gas flow model multiphase flow superficial velocity production monitoring holdup...