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Keywords: pressure drop
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Proceedings Papers
Production Recovery and Economic Performance of Subsea Processing Technologies for Longer and Deeper Gas Field Developments
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-119
... issues related to the transported fluid such as: pressure drop, liquid hold-up, hydrates, corrosion and sand. The recent subsea technology development, Pseudo Dry Gas System (PDGS), has demonstrated that deep water fields (~2000 m) can be transported long distances (~200 km) to existing processing...
Proceedings Papers
Multiphase Flow Simulator for Production & Hydrate Management - Improvements and Benchmark Against Experimental Data With Real Fluids
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-247
... to fit pressure drop and heat transfer data before being used as a base line for detecting hydrate formation. 2 INTRODUCTION Over the past years successful production system design and operations have become more and more challenging since important flow assurance risks need to be tackled concurrently...
Proceedings Papers
Assessment of Entrainment Rate Correlations for Annular Flow Based on Disturbance Wave Crests
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-277
... entrainment and deposition have relevant impact on annular flow properties, such as pressure drop and film thickness, as vastly shown in literature. Several authors have described physical mechanisms for droplet entrainment and deposition; many of those are related to disturbance waves. The objective...
Proceedings Papers
Severe Slugging Mitigation in an S-Shape Pipeline-Riser System With Injectable Venturi for Stabilised and Increased Production
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-375
... injectable venturi injection pressure drop pipeline transient behavior reduction reservoir surveillance valve gas injection riser base pressure fluctuation flow rate experiment slug catcher artificial intelligence stability production logging bottom-hole pressure production control plain...
Proceedings Papers
Large Scale Experiments on High-Rate Three-Phase Low Liquid Loading Flows
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-425
... conducted at conditions that to a certain extent matched those expected during plateau production for the subsea gas development in Block 2 offshore Tanzania. One of the key concerns was that the presence of oil, water and MEG increases the frictional pressure drop more than current multiphase models...
Proceedings Papers
Modelling of the Wall Film in High-Rate Low Liquid Loading Flows
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-441
... was granted access to use the data for improving the accuracy of the pressure drop predictions in LedaFlow. The experimental results showed that a key element for predicting high-rate low liquid loading flows accurately is to account for the droplets that deposit on the walls in the gas zone, creating a wall...
Proceedings Papers
Rheology Study: Comparison of a Real Condensate-MEG System and a Model Fluid System
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-461
...). Dispersion viscosities derived from pressure drop measurements increased with higher dispersed phase fraction. However, the relative increase in viscosity was considerably less for the condensate – MEG system when compared with the model system. For all systems, a peak value of the viscosity was reached...
Proceedings Papers
A New Model for Annular Stratified Flow
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-477
... ABSTRACT We consider the apparent roughness and increased pressure drop associated with the presence of a thin liquid film between the gas and the pipe wall in two- and three-phase stratified-annular gas-liquid flow. The main objective is to improve the pressure drop predictions for near...
Proceedings Papers
Impact of Fluid Flow and Thermodynamic Wax Models on Multiphase Wax Deposition Simulation
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-497
..., chemicals such as wax inhibitors, dispersants or wax crystal modifiers are commonly used by the industry, together with mechanical techniques, dewaxing pigging, to remove the wax deposits. pressure drop wax inhibition fluid flow model production chemistry paraffin remediation deposition...
Proceedings Papers
An experimental study of two-phase flow in horizontal and inclined annuli
Available to PurchaseJ. Nossen, L. Liu, O. Skjæraasen, M. Tutkun, J. E. Amundsen, H. G. Sleipnæs, N. Popovici, K. Hald, M. Langsholt, R. Ibarra
Publisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-087
... apparent being the lack of reliable multiphase flow models for flow in annuli, that is, flow between the inner and the outer pipe. Commercial multiphase flow simulators lack the ability to correctly predict pressure drop in annulus flow, even for single phase flow. Well design is thus based on crude...
Proceedings Papers
Unstable well behaviour in gas well liquid loading - stability tests
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-145
..., results are presented for experiments which have been performed with a pressure controlled vessel attached to a vertical pipe. The pressure drop was varied to represent reservoir characteristics from tight to prolific. Liquid was injected using a mass flow controller. From these experiments...
Proceedings Papers
Velocity profiles in stratified two-phase flow: Comparison of measurements and model predictions
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-185
... from two-phase oil-water experiments. Additionally, we will show that good pressure drop predictions can be obtained even when there is a mismatch between calculated and measured velocity profiles over large portions of the cross section. 1 INTRODUCTION One-dimensional models of multiphase flow...
Proceedings Papers
Åsgard subsea compression and predictions of liquid surges
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-275
... compression station, import/export flowlines and topside separation system. The flowline model in the FAS has been tuned against existing field data on pressure drop and liquid accumulation. At low flow rates, liquid surge wave instabilities in the flowlines occur. In the present paper, it is shown...
Proceedings Papers
Advances in modelling hydrodynamic slug flow in production systems
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-293
... transient behavior slug flow cell size gas entrainment slug catcher simulation speed topside choke pipeline inlet slug hydrodynamic slug flow slug frequency maximum slug length fluid density slug body pressure drop Advances in modelling hydrodynamic slug flow in production systems T J...
Proceedings Papers
CFD for multiphase flow in vertical risers
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-309
... the physical time used was 14 s. This time interval allows for the flow stabilization. The liquid holdup and pressure drop were only calculated over the last 30D of pipe length to ensure a more fully developed flow. The same quantities as considered with Fluent are calculated from the present OpenFOAM...
Proceedings Papers
Prolonged gas-condensate pipeline operation below minimum turndown rate
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-395
... drop (calculated) PLB pressure drop (calculated) PLA condensate accumulation (calculated) PLB condensate accumulation (calculated) Figure 3: Typical pressure drop and liquid accumulation (holdup) in Pipeline A and Pipeline B versus flow rate After the event, comparisons between dynamic multiphase flow...
Proceedings Papers
The use of a low-cost gas-liquid flow meter to monitor severe slugging
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-413
... conventional field instrumentation has been used to monitor severe slugging occurring at the exit of a vertical pipe. This meter was originally developed for conventional oil field applications [1] and is based on the readings of a multiphase orifice and the pressure drops of the gas- liquid mixture flowing...
Proceedings Papers
Pressure drop measurements in low liquid loading three-phase flows
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-455
... ABSTRACT At high gas rates, even small amounts of liquid can have a significant impact on the pressure drop, and this is important to model accurately when designing wet gas transport systems. In order to gain an improved understanding of this matter, several sets of two- and three-phase...
Proceedings Papers
Pressure drop in low liquid loading flows - the effect of a thin liquid film on the pipe wall
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-471
...Pressure drop in low liquid loading flows the effect of a thin liquid film on the pipe wall D Biberg, C Lawrence, G Staff Schlumberger Norway Technology Center, Norway H Holm Statoil ASA, Norway ABSTRACT We consider the apparent roughness and increased pressure drop associated with the presence...
Proceedings Papers
Uncertainty evaluation applied to a model-based Virtual Flow Metering system
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-485
... choice dependent on the type of field, accuracy requirements and the acceptable uncertainty for the operation. field life mpt 2017 pressure drop vfm temperature drop pressure loss upstream oil & gas information management model-based virtual flow correlation production monitoring...
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