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Keywords: prediction
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Proceedings Papers
Slugging Monitoring and Classification with Machine Learning
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-007
... such as at the end-of-tubing and due to system instabilities such as void waves. choke machine learning recurrent neural network pca bhr group mpt2019 flowline accuracy non-slugging condition production data deep learning upstream oil & gas dependency amplitude prediction classification...
Proceedings Papers
Effect of Droplet Entrainment in Liquid Loading Prediction
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-155
.... Inclination angles varied from 30 ? to 70 ? from horizontal. The fluids used were air and water. Measurements included fluid velocities and reversal point. High-speed video cameras were used to record the flow regime transition (slug to annular) present in the system. Prediction using the film reversal models...
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
... they predict system dynamics such as time-varying changes in flow rates, fluid compositions, temperature, solids deposition and operational changes. In addition, field production monitoring with dynamic simulations is important in deep water and is used extensively in both offshore and onshore developments...
Proceedings Papers
Simplified Mechanistic Model for the Separation of Dispersed Oil-Water Horizontal Pipe 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-2019-265
... A mechanistic model that predicts the separation of oil-water dispersed horizontal pipe flows was investigated. Different droplet diameter averages were implemented in the model and the accuracy of the resulting predictions was assessed by comparing each case against experimental data...
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
... 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
Modeling High-Viscosity Two-Phase Flow Pattern Transitions in Upward Vertical Flow in Pipes
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-291
... ABSTRACT Two-phase flow in vertical wells is a common occurrence in oil and gas production. High-liquid viscosity two-phase upward vertical flow in wells and risers presents a new challenge for predicting pressure gradient and liquid holdup due to the poor understanding and prediction of flow...
Proceedings Papers
Operational Sphering for Liquid Management: Matching Field Data with OLGA
Available to PurchasePublisher: BHR Group
Paper presented at the BHR 19th International Conference on Multiphase Production Technology, June 5–7, 2019
Paper Number: BHR-2019-331
... volumes. The results show that OLGA is unable to accurately predict both the total liquid and aqueous phase volumes when the actual sphere diameter is used, but this is improved when the sphere is modelled as larger than reality. Adjusting the leakage factor ‘through’ the sphere does not affect...
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
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
... and thermodynamic wax models may affect the predictions of wax deposition rate and pigging frequency. The fluid flow models considered include the steady-state multiphase OLGAS® and Beggs-Brill model. The thermodynamic wax models of Coutinho and an ideal mixing approach will be compared. Real field cases...
Proceedings Papers
Prediction of asphaltene precipitation risk in oil wells using a coupled hydro-thermodynamic model
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-005
...Prediction of asphaltene precipitation risk in oil wells using a coupled hydro-thermodynamic model E Al-Safran Petroleum Engineering Department, Kuwait University, Kuwait ABSTRACT Asphaltene precipitation and deposition is a major flow assurance challenge, which manifests itself in reservoir...
Proceedings Papers
A study of wax deposition in pipeline using thermal hydraulic model
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-023
... and transportation of crude oil in the pipeline. The predictions of wax deposited thickness during various operations for crude oil export line and multiphase production line are imperatively required to support the process engineering design and field operations. However, empirical heat and mass transfer...
Proceedings Papers
Assessing hydrate blockage risk in oil pipelines: deploying a new transient simulation capability
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-039
... a new method to directly predict the effect of hydrate formation on transient flow in oil & gas flowlines. The method couples established models for transient flow, fluid properties, and hydrate formation to allow for prediction of the severity of hydrate formation in transient operations and rapid...
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
...Velocity profiles in stratified two-phase flow: Comparison of measurements and model predictions P Andersson, J Henriksson Schlumberger, SNTC, Norway ABSTRACT One-dimensional models of multiphase flow in pipes are based on averages over the pipe cross section, and traditional models rely on bulk...
Proceedings Papers
Assessment and sensitivity analysis of multiphase flow pipeline models against experimental and field data
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-209
... influences the dynamics of pipeline pressure, and liquid content and outlet rates; production rates span the region of transition between separated and slug flow regimes. Out-of-the-box model predictions of pressure drop can differ from measured values by 20% or more. While model predictions of liquid...
Proceedings Papers
Validation of a multiphase flow simulator using three-phase gas condensate field data
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-225
... complex reservoir lf 2 mass flow rate relative error upstream oil & gas production monitoring production logging condensate reservoir operation pipeline prediction field data flow rate pipeline pl1 bhr group 18 pipeline pl3 reservoir surveillance international conference...
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
... Åsgard subsea compression and predictions of liquid surges G R Setyadi, K Holmås, G G Lunde, K Vannes, A Sengebusch TechnipFMC, Norway M Nordsveen, B H Pettersen Statoil, Norway 1 ABSTRACT An online Flow Assurance Simulator (FAS) has been developed for the Åsgard subsea compression (ÅSC) system...
Proceedings Papers
Improvement of LedaFlow for churn flow in vertical pipes
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-325
..., was subsequently used to derive improved closure laws for LedaFlow, with particular emphasis on the difficult churn flow regime. The new models were found to improve the overall holdup and pressure drop predictions significantly. NOMENCLATURE C0 Distribution parameter dbubble Small bubble diameter [m] D Pipe...
Proceedings Papers
Minimum sand transportation conditions in multiphase pipelines: an assessment exercise
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-363
... design to ensure sand transportation at low velocities. The work reported in this paper focused on an assessment on MTC models developed for liquid/sand flows and gas/liquid/sand flows. A literature review was conducted on published prediction methods with regard to sand transportation. A selective set...
Proceedings Papers
Improving CO 2 corrosion rate predictions through the use of corrosion assessment and flow modelling - A field case study
Available to PurchasePublisher: BHR Group
Paper presented at the 18th International Conference on Multiphase Production Technology, June 7–9, 2017
Paper Number: BHR-2017-381
...Improving CO2 corrosion rate predictions through the use of corrosion assessment and flow modelling A field case study L Barton 1, M Forde 1, A Pinto 1, I Laing 1, R Ladwa 2 1 ROSEN UK, Corrosion Management Group, UK 2 ROSEN Group, Flow Assurance, Switzerland ABSTRACT Using corrosion rate...
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
.... The transient behavior of the flow system, including the orifice, has also been predicted by means of a 1-D flow simulator [2]. The results of these simulations agree well with the experimental readings, thus providing a powerful method to monitor severe slugging by means of low cost instrumentation...
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