Gas entrainment rates are measured using a new experiment where a single entrapped gas bubble is pushed in by pressurized liquid. The single bubble is created by draining liquid in between two ball valves or in the upper part of a dog leg. Experiments are carried out in horizontal and near horizontal pipelines, 32 mmin diameter, about 8.5 m in length. Gas entrainment rates are calculated using measurements (liquid holdup and slug front velocity) from conductance probes. Experimental results, though scattered, are in good agreement with data from Manolis (1995) where gas entrainment rates increase linearly with slug front velocity.

Keywords:
reservoir surveillance, manolis, gas bubble, gas entrainment rate, configuration, production monitoring, conductance probe, ball valve, experimental result, slug flow
Subjects:
Well & Reservoir Surveillance and Monitoring, Production logging
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2011. BHR Group 2011 Multiphase 15
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