Chapter 4 Key Multiphase Flow Metering Techniques

TLDR: In this paper, a review of the measurement techniques used for multiphase flow metering is presented, classified into those concerned with density measurement, velocity measurement, momentum flux measurement, mass flux measurement and elemental analysis.

Abstract: Publisher Summary This chapter reviews the measurement techniques, classified into those concerned with density measurement, velocity measurement, momentum flux measurement, mass flux measurement, and elemental analysis. The chapter indicates when the various techniques were first applied to the metering of multiphase flows, how they work, and the ones that have potential for further development. The density of a fluid flowing in a horizontal pipe could be determined directly from the weight of a section of the pipe. Turbine flow meters are frequently used in the measurement of single phase flow rates. The turbine meter operates simply as a hydraulic turbine. It is essentially a device that rotates as the fluid flows through the turbine blades. The rotational speed of the blades is related to the volumetric flow rate. The rate of flow of a single-phase fluid can be determined by measuring the pressure drop across an orifice and employing the Bernoulli equation for frictionless flow. The true mass flow meter (TMFM) is a radial circulation pump. It consists of a rotor with an axial inlet and radial outlet, and a radial stator. The neutron interrogation method determines the content of the respective phases in the channel by measuring the concentrations of specific atom species. After presenting the individual metering techniques, the multiphase flow meters currently available are also discussed in the chapter.