METHOD FOR DETERMINING THE FLOW RATE OF WATER, OIL, GAS Russian patent published in 2019 - IPC E21B47/11 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the field of oil and gas industry, in particular to the field of operation of field wells, and can be used in development of oil, gas and gas condensate deposits, in particular for determination of phase well flow rates. According to the method, at least one container comprising at least one matrix made from a material with different solubility in a formation fluid of different composition and containing trace particles dispersed in the matrix material in the form of particles with different physical and chemical properties, is installed at required depth and / or in wellhead with provision of contact with produced formation fluid. Solubility of the matrices in model solutions with different ratios of water, liquid hydrocarbon and natural gas and depending on the flow rate is pre-determined. At that, the container can be made with the possibility of replacement as the matrix dissolution, as well as release from the matrix, when it interacts with formation fluid, tracer marks and / or using an external control signal, including after well shutdown. At that, the container is designed to be used in working or in new wells as part of a camera built into filters or pipes, or in the composition of the camera in form of a separate device in the composition, wherein flow rates of water, oil and gas are calculated based on analysis of tracer marks registered at well exit and using previously determined solubility of matrices in model solutions.

EFFECT: technical result achieved during implementation of the developed method consists in increasing the obtained information on filtration in the formation and on actual processes in the well with instantiation in space and time with simultaneous increase of accuracy and simplification of the method.

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