CORRELATION METHOD FOR MEASURING TOTAL AND FRACTIONAL FLOWRATES OF MULTIPHASE UNMIXABLE MEDIA AND DEVICE FOR CARRYING OUT SAID METHOD

摘要

The invention relates to measurement engineering and can be used in information and measuring systems for the oil-producing and oil-refining industry, in particular for determining a well flowrate. The inventive method consists in obtaining maximum information about a multi-phase flow structure by scanning said flow at each metering by means of rotating high-frequency electrical and magnetic fields at the single carrying frequency of a scanning signal, in automatically processing the obtainable scanning signals associated with extracting the maximum of amplitude- frequency and phase-frequency signal characteristics and in using all measurement results for calculating correlation functions. Said method also consists in normalising the signal scanning by the rotating high-frequency electric field (the signal is amplified by using a normalising scale constant). In addition, all four scanning signals are processed by means of a microprocessor. The total and fraction flowrates are determined by comparing the measured parameters with reference parameters taken from a databank.