METHOD AND SYSTEM FOR MEASURING FLOW RATES OF MULTIPHASE AND/OR MULTICOMPONENT FLUID EXTRACTED FROM OIL AND GAS WELL Russian patent published in 2021 - IPC E21B43/12 E21B47/06 E21B47/07 E21B47/10 

FIELD: production of multiphase and/or multicomponent fluids.

SUBSTANCE: group of inventions relates to the extraction of multiphase and/or multicomponent fluids from oil and gas wells and is intended for measuring the flow rates of phases and/or components of extracted fluids. In accordance with the method, continuous primary measurements of pressure, temperature and at least one additional parameter of the flow of the extracted fluid are carried out at the wellhead by means of sensors installed on the flow line of the extracted multiphase and/or multicomponent fluid. At the same time, the flow rates of the phases and/or components of the extracted fluid are measured using a reference multiphase flow meter installed on the flow line of the extracted fluid. The dependence between the pressure, temperature and additional parameters of the extracted fluid flow measured during the primary measurements and the values of the flow rates of the phases and/or components of the extracted fluid measured by a reference multiphase flow meter is established. Subsequent continuous measurements of pressure, temperature and additional flow parameters of a multiphase and/or multicomponent extracted fluid are carried out by means of a set of sensors and the flow rates of the phases and/or components of the extracted fluid based on the established dependence is determined.

EFFECT: invention ensures possibility of continuous flow measurements with high accuracy, as well as the possibility of conducting metrological studies and preserving an extensive set of data on component-by-component costs from the well, necessary for effective monitoring of the productivity of the well and the formation.

4 cl, 7 dwg