Abstract: A correlation method for measuring total and fractional flow rates of multiphase immiscible media comprises identifying two control sections along the multiphase flow, and scanning each control section so as to measure fluctuations in the dielectric flow characteristics in each section, the scanning signals for each section comprising rotating high-frequency electric and magnetic fields with one common carrier frequency. The received scanning signals are independently processed so as to identify the peak amplitude-frequency and gain-phase characteristics of the signals, and the results of all measurements are used for calculating the correlation functions. The scanning signals generated by the rotating high-frequency electric field are amplified by means of a normalizing scale factor, and all four scanning signals are additionally processed by a microprocessor. Total and factional flow rates are determined by comparing the measured characteristics with reference characteristics stored in a database.

Abstract: The invention relates to measuring equipment and can be used in data-measuring systems in oil-producing and oil-processing industries for the determination of multiphase flow composition, in particular, for evaluation of the well production rate. The invention is based on obtaining maximum data on the structure of the multiphase flow by its scanning in each measuring section by rotating high-frequency electric and magnetic fields with one common carrier frequency of the scanning signal. The received scanning signals are independently processed with identification of the peakamplitude-frequency and gain-phase characteristics of the signals. The results of all measurements are used for calculating the correlation functions. The scanning signals generated by the rotating high-frequency electric field are scaled (signals are amplified by means of a normalizing scale factor). All four scanning signals are additionally processed by the microprocessor.

Abstract: The invention relates to measuring equipment and can be used in data-measuring systems in oil-producing and oil-processing industries for the determination of multiphase flow composition, in particular, for evaluation of the well production rate. The invention is based on obtaining maximum data on the structure of the multiphase flow by its scanning in each measuring section by rotating high-frequency electric and magnetic fields with one common carrier frequency of the scanning signal. The received scanning signals are independently processed with identification of the peakamplitude-frequency and gain-phase characterictics of the signals. The results of all measurements are used for calculating the correlation functions. The scanning signals generated by the rotating high-frequency electric field are scaled (signals are amplified by means of a normalizing scale factor). All four scanning signals are additionally processed by the microprocessor.