METHOD FOR MEASURING TWO-PHASE MIXTURE FLOW AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2021 - IPC G01F1/74 

FIELD: measuring equipment.

SUBSTANCE: invention relates to a flow rate measurement technology that includes systems for use in measuring production volumes, including a two-phase mixture of individual phases, for example, a mixture containing oil and gas phases. The specified technical result is achieved due to the fact that an incoming multiphase flow is divided into a liquid and a gas component using a vortex flow, for which a helicoidal turbine is used, which is inserted into a measuring pipeline on the axis, providing it with rotation using a propulsion unit, wherein a smaller diameter pipe is placed behind the turbine along the flow coaxially with the main pipeline, which forms a gap between its outer surface of the smaller diameter pipe and the inner surface of the pipeline; flow meters of the liquid phase are placed on the outer or inner pipe; and at the outlet of the inner pipe, where liquid and gas phases are naturally mixed and moved together, or to the turbine, flow meters of the total fraction are placed; the volume of the gas component of the mixture is determined by the difference between readings of flow meters.

EFFECT: possibility of separating the gas-liquid mixture directly inside the measuring pipeline and measuring the liquid and gas phase, without using a separator, separating and reducing flows by separate pipelines.

3 cl, 1 dwg