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Title: Two-Phase Flow Measurement Based On The Analysis Of The Sensor Signal From A Conventional Vortex Flowmeter
Author: m. Pusayatanont, P.J Unsworth, E.H Higham
Source: Flomeko 2003
Year Published: 2003
Abstract: This paper presents a new technique for measuring the volumetric flow rates of each phase in a twophase gas-in-liquid flow regime, by analysis of the sensor signal from a conventional vortex flowmeter. The vortex flowmeter has become established throughout the process industry for the measurement of both liquid and gas flows, principally because of its wide rangeability, coupled with a nearly linear relationship between the vortex shedding frequency and volumetric flow rate, plus the fact that it has no moving parts which are liable to deteriorate in service. In recent years, the measurement of multiphase flow has become increasingly important in the management of oil wells, and there are also many instances in the process industries where it would be helpful to have on-line measurements of this type. It has therefore been the subject of extensive research because virtually all available flowmeters are suitable for measuring only single phase flows, and when a second phase is introduced their performance is seriously impaired and in some instances they may cease to function.

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