SYSTEM FOR MEASURING FLOW OF COMPONENTS OF THREE-COMPONENT GAS-LIQUID STREAM Russian patent published in 2008 - IPC G01F1/74 G01F1/66 E21B47/10 

FIELD: oil extractive industry, possible use for controlling debit of oil wells.

SUBSTANCE: system contains three cylindrical high frequency resonators for measuring relative content of stream components, mounted coaxially on external surface of dielectric pipe, installed inside a tubular body. Each resonator represents a short-circuited conductor in form of rectangular meander and is provided with two mutually orthogonal inputs-outputs. Composition of system also includes controllable high frequency generator and commutator, two input amplifiers, gas-liquid stream flow modes controller, delay block and six screened receiving-transmitting routes, connected to corresponding inputs-outputs of resonators and to inputs of computing and management block. On basis of content of components and stream speed, determined by autocorrelation measurement method, component-wise volumetric flow is calculated, and with usage of information from pressure and temperature sensors - mass flow is calculated.

EFFECT: increased precision of measurements in two extreme flowing modes of gas-liquid substance - transient flow mode and fully steady flow mode.

5 dwg