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A METHOD AND APPARATUS FOR WET GAS FLOW MEASUREMENTS AND MEASUREMENT OF GAS PROPERTIES
A METHOD AND APPARATUS FOR WET GAS FLOW MEASUREMENTS AND MEASUREMENT OF GAS PROPERTIES
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机译：湿气流量测量和气体特性测量的方法和装置
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摘要
1. A method for determining the flow rates of a fluid comprisinga multi-component mixture of a gas and at least one liquid in apipe, the method comprising the following steps: a. The temperature andpressure of the multi-component mixture is determined, b. the fractions ofthe multi-component mixture is determined based on at least two measuredphysical properties of the multi-components mixture and knowledge of thesame physical property of the individual components of the multi-componentmixture, c. the velocity of the multi component mixture is determined,d. based on the result from step a-c, the flow rate of the individualcomponent of the fluid is determined, characterized by a method fordetermining the physical properties of at least one of the components of themulti-component mixture where e. an electromagnetic loss or phase measurementis performed, f. a statistical parameter related to the electromagneticmeasurement is calculated, g. the said statistical parameter is comparedto an empirical derived threshold value corresponding to the valueof the statistical parameter when only one of the component of the multicomponent mixture is present, and h. the said physical properties of saidfluid is determined if the statistical parameter exceeds the threshold valuefor the said component and used in step b-d to provide an improved valueof the fractions, velocity and flow rate of the individual components of themulti-component mixture. An apparatus for performing the method is alsodisclosed.
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