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Keywords: two-phase flow
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Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-203
... ABSTRACT This study investigates experimentally and theoretically the existence slugs for vertical co-current two-phase flow in large diameter vertical tubing and risers. The slug flow pattern implies the presence of Taylor bubbles separated by hydraulically sealed liquid slugs. Previous...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-219
... liquid flow pipe onset velocity string production logging pressure gradient gas flow rate flow metering flow rate graph production control annular flow production monitoring bhr group 2018 upstream oil & gas eccentricity two-phase flow reservoir surveillance usl 10mm pressure...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-003
... Abstract Heavy oil production and transport remains a challenge due to the lack of understanding of the flow behavior of gas and high viscosity oil two-phase flow in pipes. For example, existing two-phase flow in pipes mechanistic models shows significant discrepancy in predicting high-liquid...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-017
... Abstract This paper discusses a transient solid-liquid two-phase flow modelling approach that was applied for real-time drilling hydraulic and cuttings transport calculation. The flow patterns are categorized into seven scenarios, and the flow pattern transition criteria are presented...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-191
... Abstract This paper presents a simplified model for gas-liquid two-phase flow in churn and annular flow regimes for small- and large-diameter near-vertical pipes. Churn flow is considered by many investigators as the least understood flow regime in upward gas-liquid flow in vertical pipes...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-245
... passages of Taylor bubbles and liquid patches induce momentum fluctuation. In the churn flow regime, periodic liquid structures of different time and length scales can lead to momentum fluctuation. amplitude multiphase flow assessment two-phase flow upstream oil & gas production monitoring...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-259
... and modelling studies on gas-liquid two-phase flow have been carried out owing to its importance in industrial applications. In petroleum industry, relatively few investigations in vertical downward two-phase flow have been reported as compared with horizontal and vertical upward. Downward flow has been...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-459
... dukler prediction multiphase flow standard temperature existence transition criterion production logging upstream oil & gas transition model experimental data reservoir surveillance bhr group 2016 two-phase flow production control Improved unified flow regime transition criteria O...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 10th North American Conference on Multiphase Technology, June 8–10, 2016
Paper Number: BHR-2016-473
... in two-phase flow. Introduction Multiphase flow occurs in many systems encountered in chemical, petroleum, and nuclear industries. Because efficient design and operation of these systems depend on the ability to predict the flow characteristics, several multiphase flow models have been developed...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-H1
... Abstract Oil and gas reservoirs are tested by performing a shut-in test. A new down-hole shut-in valve has been installed in a multiphase flow loop and the pressure drop over the valve has been investigated for single phase and two phase flows. The flow path through the valve is a 3 meter long...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 8th North American Conference on Multiphase Technology, June 20–22, 2012
Paper Number: BHR-2012-A007
... 1 ABSTRACT: An experimental study on wave characteristics and stratified to non-stratified transition for downward (-2°) two-phase flow and highly viscous oil ( μO =181 cP) is presented in this study. Gravity and 2D waves have not been observed for high viscous oil-gas stratified flow...

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