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Proceedings Papers

Publisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-105
... velocity upstream oil & gas spinodal decomposition equation bhr group mpt2019 ABSTRACT A novel two-phase Cahn-Hilliard Navier-Stokes (CH-NS) solver has been developed to predict multiphase flows in oil and gas transport. Compared to more classical CFD methods (like the VOF model...
Proceedings Papers

Publisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-231
... costs to the project and minimizing them can be of utmost importance to a safe and profitable operation. nucleation droplet hydrate cut hydrate formation relation emulsion hydrate particle pbm framework equation viscosity slurry viscosity expression upstream oil & gas flow...
Proceedings Papers

Publisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-277
... control experimental data correlation production logging multiphase flow production monitoring entrainment fraction droplet entrainment two-fluid model equation prediction wave celerity pressure drop superficial gas velocity reservoir surveillance upstream oil & gas entrainment rate...
Proceedings Papers

Publisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-317
... & simulation upstream oil & gas boundary point pig velocity equation boundary condition bypass pig pig-generated slug bypass time step pig motion two-fluid model liquid slug holdup bhr group mpt2019 discretization eigenvalue pipeline pigging Simulation of slug propagation for by-pass...
Proceedings Papers

Publisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-477
... upstream oil & gas low liquid loading water fraction liquid film annular stratified flow pipe wall pressure drop annular flow equation multiphase production technology experiment international conference production logging production control liquid layer stratified layer viscosity...
Proceedings Papers

Publisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-497
... prediction. The performance of different models of thermodynamics of wax and fluid flow will be assessed against field observations and production data. © BHR Group MPT2019 497 2 FRAMEWORK OF WAX DEPOSITION MODELLING Modelling wax deposition in pipelines relies on the fundamental equations for describing...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-023
... the development of a mechanistic model which adopts thermal hydraulic calculations and the aging model for wax deposition predictions. A numerical finite element approach is used to solve systematic equations for mass, momentum and energy transfer in the pipeline. The effects of wax deposit parameters used...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-039
... time. The algorithm primarily solves coupled mass, momentum and energy balances, shown in equation (1), to provide a transient framework for fluid-flow calculations. As such, the algorithm requires specification of a fixed inlet fluid composition, flowline bathymetry, and ambient seafloor conditions...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-199
... been fixed in all cases. To our knowledge, this is the first 3D Direct Numerical Simulation on the present issue and serves as a proof of concept. 2 METHODOLOGY Using a Phase Field Model approach the equations that govern the behavior of the system are the incompressible Navier-Stokes (NS) equation...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-309
..., a numerical interface sharpening algorithm is implemented within the Eulerian framework. The advantage is that the same governing equations are solved in the full domain. In order to derive the conservation equations of this hybrid model, the individual phases are distinguished. This is achieved...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-325
... distribution. Figure 2: Liquid distribution in bubbly flow in stagnant liquid. The 3D picture on the right is generated from the WMS data. Figure 3 shows the slip velocity (calculated using equation (1)) plotted against the gas fraction for the 4" experiments at 45 and 70 bara. We notice that the slip velocity...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-413
... in a vertical section of the pipe. Liquid and gas flow rates have been determined by means of semi-empirical equations developed for the specific set of flow parameters (geometry, flow rates, physical properties) adopted in a series of laboratory tests conducted in the Multiphase Flow Laboratory of TEA Sistemi...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-471
... the corresponding generic friction law 1 = 2 log (7) which also constitutes the basis of the Colebrook equation (9). The modelling now focuses on determining the generic roughness length for various, flows, starting with single phase gas flow. Figure 2. Variation of the difference between the local...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 17th International Conference on Multiphase Production Technology, June 10–12, 2015
Paper Number: BHR-2015-A2
... an accurate droplet model should be considered. Most of the current models for prediction the droplets concentration profiles are based on a 1D approach ([1], [2], [3], [4 Following [1], a diffusion-type equation is used to estimate the droplet concentration hw n dC w C( 1 C ) a( y ) dy + = (1) Where...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 17th International Conference on Multiphase Production Technology, June 10–12, 2015
Paper Number: BHR-2015-D4
..., the behaviour of these flow regimes in an elbow is investigated to speculate the effect of pipe orientation on erosion in the elbow. This paper is organized as follows. In Section 2, the experimental apparatus is briefly explained. In Section 3, governing equations, computational domain, and grid employed...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 17th International Conference on Multiphase Production Technology, June 10–12, 2015
Paper Number: BHR-2015-G3
... propagates backwards. For the upper and lower cases (marked I and III respectively), on the other hand, it is not possible to decide with certainty whether the flow is subcritical or supercritical since information can propagate forward both in subcritical and supercritical flow. 2.1 Basic equations...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 16th International Conference on Multiphase Production Technology, June 12–14, 2013
Paper Number: BHR-2013-E1
... liquid slug upstream oil & gas reservoir surveillance production logging liquid holdup unit cell model equation simulation superficial velocity long gas bubble velocity unit cell gas bubble slug flow correspond numerical simulation Data processing of full 3D numerical simulation...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 16th International Conference on Multiphase Production Technology, June 12–14, 2013
Paper Number: BHR-2013-E2
..., varies from 0 to Q (number of indexed performance variables) Total number of models to be compared Q Number of variables used to compute the relative performance index in Equation (1) Number of cases studied sg Specific gravity, relative density to density of water at 20 C and 1 bar. Standard...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 16th International Conference on Multiphase Production Technology, June 12–14, 2013
Paper Number: BHR-2013-E4
... simulation reservoir surveillance simulation pressure profile equation taylor bubble bhr group 2013 production monitoring production control interface upstream oil & gas multiphase 16 pressure distribution mean velocity pressure variation spool Behaviour of slug flow and pressure force...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 16th International Conference on Multiphase Production Technology, June 12–14, 2013
Paper Number: BHR-2013-E6
... mechanistic model slug flow equation experimental data frequency friction slug front Mechanistic models for three-phase stratified and slug flows with dispersions C Lawrence, J Nossen, R Skartlien, O Sendstad, O Skjæraasen, J Hua, L Liu, K Hald, T Sira, E Holm, B Hu Institute for Energy Technology...

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