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Keywords: instability
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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-2019-183
...An experimental investigation of three phase flow instabilities in a flowline-riser medium scale setup Tor K. Kjeldby, Magnus Nordsveen Equinor 1 ABSTRACT Three phase flow system instabilities have recently been investigated in a 3 flowline-riser medium scale model system at the Equinor Porsgrunn...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 16th International Conference on Multiphase Production Technology, June 12–14, 2013
Paper Number: BHR-2013-F2
.... midgard gas condensate field production rate liquid accumulation complex reservoir concentration bhr group 2013 pressure drop instability flow rate flowline msm 3 surge wave instability surge accumulation condensate reservoir production control production monitoring topside choke...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 16th International Conference on Multiphase Production Technology, June 12–14, 2013
Paper Number: BHR-2013-J2
... ABSTRACT The severe slugging flow instability in flowline-riser systems is an upstream compressibility problem, where trapped gas upstream the riser base can be compressed and eventually cause blow out of the accumulated liquid in the riser. For the case of a very long riser, flow...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 15th International Conference on Multiphase Production Technology, June 15–17, 2011
Paper Number: BHR-2011-H3
... ABSTRACT The "slug capturing" method developed by Issa & co-workers is based on the numerical solution of the two-fluid model equations using fine meshes (unlike existing methods employing much coarser ones) to enable the resolution of inherent flow instabilities that would otherwise...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 14th International Conference on Multiphase Production Technology, June 17–19, 2009
Paper Number: BHR-2009-E2
... ABSTRACT This paper treats of the causes of instable production of onshore petroleum wells, the development of a dynamic model for well production – both natural and by means of an electrical submersible pump (ESP). The article also features some case studies of applying the proposed...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 14th International Conference on Multiphase Production Technology, June 17–19, 2009
Paper Number: BHR-2009-F2
... of their production lifetime, oil wells tend to produce in an unstable, cyclic manner. One of these flow instabilities, the density wave instability, appears in gas-lifted wells. Numerical simulations with the software program OLGA show for which conditions the density wave instability appears. Experiments have been...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 12th International Conference on Multiphase Production Technology, May 25–27, 2005
Paper Number: BHR-2005-E3
... by two main mechanisms: (i) liquid accumulation due to instantaneous imbalance between pressure and gravitational forces caused by pipe undulations, and (ii) natural growth of hydrodynamic instabilities. In the first, slugs may form at pipe dips due to the retardation and subsequent accumulation...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 12th International Conference on Multiphase Production Technology, May 25–27, 2005
Paper Number: BHR-2005-H2
... and the simulations are discussed. A methodology using flow pattern maps in combination with field data are presented for prediction of the onset of instabilities caused by hydrodynamic slugging. production control production logging pressure fluctuation inch flow line pipeline transient behavior slug...

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