... 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...

... oil superficial velocity production logging nominal oil viscosity mean liquid holdup production control artificial intelligence upstream oil & gas slug frequency reservoir surveillance prediction multiphase flow simulator viscosity gas superficial velocity flow pattern slug...

... group 2015 upstream oil & gas olga tm manifold multiphase 17 slug frequency multiphase flow software simulation preservation sequence delay constant pressure variation reservoir surveillance dead oil accuracy production control prediction production logging circulation production...

... A mechanistic model has been developed for the rate of initiation of hydrodynamic slugs and has been coupled with improvements in the closure models for slug flow. The resulting Slug Tracking simulator is capable of predicting the slug frequency and slug length distribution, and their evolution along a long...

... ABSTRACT Slug flow is one of the commonly encountered liquid and gas two-phase flow patterns. The accurate prediction of its behaviours is crucial for practical engineering applications. Liquid viscosity and pipe diameter are found to have significant impacts on slug frequency, but available...

...), and 0.151 sm3/s (82,000 sbpd), respectively. The operating pressure is relatively low, about 200 psia. The collected information includes slug frequency, slug length, translational velocity, and pressure. Liquid holdup in slug body and bubble region could also be estimated, but the uncertainty may be high...

.... The pressure fluctuations due to slug flow could be reduced up to 16%, albeit at the cost of added pressure drop to the total system. bhr group 2013 incline flow condition perf 17 usl 0 pipeline transient behavior slug frequency setup slug flow slug mixer slug velocity slug catcher...

.... Furthermore, experimental pressure gradients, average total liquid and water holdups, slug frequency and length data were compared with the commercial transient multiphase simulator, OLGATM, which shows a good match with high flow-rate conditions. The models validation study shows that the effect of water cut...

... DRP in 25.4 mm pipe) The effect of DRP on the slug frequency in the 25.4 mm pipe can be noticed clearly for the two cases of with and without 50 ppm. The times for one hundred slugs that pass the end of the pipe were recorded. The number of slugs that pass the pipe in the case of the presence of DRP...

... INTRODUCTION Slug frequencies or slug lengths are typically required as one of the closure relations in slug tracking models. Due to the difficulties of modelling the highly nonlinear interface motion prior to the formation of slugs, details of slug formation are still poorly understood...

... measurement slug bubble velocity production control slug speed upstream oil & gas slug low pressure experiment frequency pressure experiment superficial gas velocity production monitoring reservoir surveillance closure relation slug frequency wave speed A comparison of slug and wave...

... experimental result slug frequency bhr group 2009 multiphase production technology 14 controller simulation unstable operating point riser-pipeline system srsm open-loop unstable operating point oil production flowrate operating point frequency pipeline upstream oil & gas...

.... The accelerometers generate a signal from which characteristic multiphase flow parameters are extracted. For instance, in case of intermittent flows, slug velocity and slug frequency are reconstructed. These parameters are subsequently used in semi empirical models. The models relate the parameters with flow rates...

.... The model can act as a fundamental scientific guideline towards the design of gas-liquid horizontal pipe flow. Predictions by the model were compared with slug frequency measurements found in literature. The agreement between the predictions and the measurements supports the idea that the turbulent...

... of slug frequency along the (37m) channel. Slug evolution was found to be very different in water-continuous and oil-continuous systems. To predict the flows, the slug capturing methodology developed previously at Imperial College was extended to the prediction of gas entrainment in the liquid slugs...

... measurement flow rate liquid flow rate bhr group 2005 surface choke terrain slug frequency multiphase production technology 12 data analysis choke Severe slugging, field measurement, modelling and field verification Sam F Kashou ChevronTexaco Energy Technology Company, USA Richard H Shea...