OIL WELL YIELD MEASURING METHOD FOR MEASURING GROUP UNITS Russian patent published in 2015 - IPC E21B47/10 

FIELD: oil and gas industry.

SUBSTANCE: yield measuring method for water-in-oil and gas emulsion collected through pipelines to a measuring group unit from oil wells with successive connection of the well pipelines transporting water-in-oil and gas emulsion to separator, wherein vibroacoustic oscillation sensor is installed in order to increase measurement accuracy of each phase yield and to ensure continuity of measurement at each pipeline transporting oil from the well to the measuring group unit. Vibroacoustic noise generated by fluid motion is measured when fluid passes through the known cross-section. Fluid speed is determined against frequency and amplitude of acoustic noise generated by non-uniformity of fluid motion. Flow temperature and pressure in pipe, density of each phase are measured preliminary and then volume or mass fraction is calculated for each phase, recorded and compared with data on oil, gas and water yield obtained during the next connection of the well to the measurement system consisting of group measuring units using the latter as reference points.

EFFECT: continuity and increased measurement accuracy of oil well yield.

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