METHOD OF DETERMINING OIL WELL PRODUCTION RATE BY FLUID

oil recovery; applicable in measurement of amounts of fluid in gas-fluid mixtures. SUBSTANCE: method includes direction of gas-fluid mixture from well to measuring calibrated vessel; separation of mixture in said vessel; measurement of hydrostatic pressure by lower and upper hydrostatic transducers; measurement of time of filling of measuring calibrated vessel until filling of measuring calibrated vessel with reaching of fixed levels by gas-fluid mixture, and stopping of supply of gas-fluid mixture to said vessel. Values of hydrostatic pressures are measured and noted by lower and upper hydrostatic transducers only after attainment of said pressures stability. Then gas-fluid mixture is discharged from measuring calibrated vessel. Oil well production rate by fluid is determined in weight units of flow rate by difference of hydrostatic pressures and time of filling of measuring calibrated vessel. In this case, difference of hydrostatic pressures are determined between their values noted by lower and upper hydrostatic pressure transducers. EFFECT: higher accuracy of measurement of production rate of oil wells including those with products liable to foaming. 1 dwg