Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Ultrasonic method of the multiphase mixtures flow rate definition with flow regime detection A.E. URAZAEV, V.KH. YASOVEEV In this article is given the short review of existing acoustic methods of multiphase flow rate definition and possible variants of their technical realization. The way of relative volume concentration of oil-water-gas mixture phase components flow speed and flow mode in channels of oil wells definition is described, the mathematical model of component wise flow rate calculation is presented. Besides the structural block diagram of the gage and a transformation circuit of the measuring signal used for multiphase mixtures flow speed and components volume concentration measurement based on attenuation of an ultrasonic wave on two basic frequencies of radiation and doppler frequency shift data are given. Key words: oil-water-gas mixture, doppler frequency shift, gas oil ratio, watercut, drift velocity, flow regime, phased transmitter array. E-mail: urazaev_ae@mail.ru Pp. 46-51.