... will require a number of decisions associated to multiphase flow. production monitoring test case inclination fluid dynamics geometry snapshot show boundary condition production logging reservoir surveillance solver evolution initial condition simulation flow regime phase distribution...

... ABSTRACT An X-ray 2D and 3-phase computed tomography (CT) device has been used within NEL's multiphase facility to identify multiphase flow structures and flow regimes for mixtures of gas, oil and water flows at low pressure. This paper demonstrates the application of this technology...

... to investigate transient behaviour in pipelines and wellbores. flow regime reservoir surveillance calculation production control production monitoring pressure drop simulator upstream oil & gas bhr group mpt2019 holdup production logging prediction diameter deviation hydrate formation...

... ABSTRACT The Gannet oil export pipeline is operating at relatively low flow rates. At these low flow rates, there is potential to have a flow regime with laminar flow instead of with turbulent flow. Therefore, the viscosity, or rather the rheological properties, of this oil are essential...

... and air, for superficial liquid velocities ranging from 0.2 to 0.7 m/s, and superficial gas velocities ranging from 0.1 to 30 m/s. From the experimental observations of flow regimes in diameters larger than 97 mm, churn flow is observed under conditions that slug flow would be expected in smaller diameter...

... of instruments for three-phase flow is performed. The focus is on the volume fraction of gas in the liquid slug. A comparison of the measured results from these two instruments is conducted, and the effect of water cut and oil-water flow regime on the void-in-slug is also analysed. The performance of some...

.... In a multiphase flow system, the superficial gas and liquid velocities can be represented as: LG G G AA Qj += (Equation 2) LG L L AA Qj += (Equation 3) Equation 1 becomes to c L G H j jS = (Equation 4) The superficial velocities can be used to consider the multiphase flow effect. The flow regime map for vertical...

... in larger diameter pipes including slug and churn flows in horizontal and vertical pipes. WMS is a state-of-the-art device which yields instantaneous void fraction distributions at pipe cross-sections. Several case studies in slug and churn flow regimes, which are widely observed in the oil and gas...

... with the turbulent field of the gas flow. Introduction Stratified gas/liquid flow is a flow regime that is often in industries such as petroleum, chemical processing and nuclear. This specific flow regime occurs when the flow rate of each phase is low enough, i.e. below the onset of intermittent flows...

... holdup, pressure drop and flow regime. The model framework includes stratified, slug and dispersed bubble flow. Suitable existing closure laws have been identified and they were improved where necessary. Predictions with the new model are compared to the new experimental data. flow regime...

...CFD wall shear stress benchmark in stratified-to-annular transitional flow regime D-J Peng, S Vahedi, T Wood Flow Assurance, INTECSEA (UK) Ltd, UK ABSTRACT Multiphase transport phenomena are an integral part of flow assurance design in subsea systems. One area of importance in subsea design...

... transport conditions, MTC, in water and air-water flows were visually obtained. MTC for sand transportation were overlaid on air-water flow regime maps for downhill, dip and uphill sections. Moreover, the slug translational velocities were calculated using measured liquid holdup to evaluate the influence...

... conditions the reported flow regimes are wavy-stratified flow, hydrodynamic slugging and severe slugging. For the slug flow regimes the gamma densitometer traces are used to back-calculate the relevant slug characteristics, such as the slug void, the slug body and unit length, slug velocity and frequency...

... with algebraic slip and friction relations for all flow regimes. All friction and slip relations, and the transition between flow regimes, are continuous and smooth for robustness, easy tuning and optimization. The equations are solved numerically using the Strongly Implicit Mixture Flux (SIMF) method developed...

... performed at pressures slightly above atmospheric condition and only stratified and annular flow regimes were studied. Pressure gradient, liquid film height, and flow regimes were measured. Moreover, an interfacial friction factor correlation was developed and compared with the measured data. Colmenares et...

... turndown and liquid accumulation curves are obtained. relative error reservoir surveillance production logging flow regime database prediction bhr group 2011 olga 5 correspond vertical pipe annular flow field data fraction production monitoring production control slug flow boussen...

.... This paper presents a new non radioactive ultrasonic-based multisensor device for the determination of the volume flow rates of multiphase mixture components along a portion of a pipeline with different flow regimes and without prior separation of gas. In addition of homogenizing the flow, some properties...

... GRAMP-2, a steady state wellbore modelling code based on flow regime prediction developed at Imperial College. Good agreement was obtained with simulated and experimental results. test section flow regime experiment multiphase production technology 14 production logging drillstem/well...

... interface pipeline multiphase flow production monitoring stratified flow model experimental data equation closure flow model flow regime upstream oil & gas artificial intelligence slug flow production logging reservoir surveillance correlation multiphase production technology...

..., and flow regime under steady state and transient conditions will be demonstrated. upstream oil & gas liquid holdup pipeline bhr group 2007 flow regime ledaflow pressure drop multiphase production technology 13 pressure gradient production control conservation equation inclination...