... 1 ABSTRACT Three phase flow system instabilities have recently been investigated in a 3" flowline-riser medium scale model system at the Equinor Porsgrunn test facilities in Norway. The test setup is well instrumented and comprises an 87 [m] long horizontal flowline followed by a 13 [m] high C...

.... 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...

... 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...

... 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 be averaged out. The method had been extensively validated in the past against laboratory experimental data for hydrodynamic...

... 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...

... ABSTRACT At the end 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...

... surveillance slug flow prediction hydrodynamic instability bhr group 2005 production monitoring node initiation pipeline application production control upstream oil & gas industrial application equation multiphase production technology 12 instability Computer prediction of slug flow...

... 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...