METHOD FOR MEASUREMENT OF TWO-PHASE THREE-COMPONENT MEDIUM FLOW Russian patent published in 2010 - IPC G01F1/74 G01F1/66 G01F15/02 E21B47/10 

FIELD: measuring equipment.

SUBSTANCE: invention may be used to measure flow of two-phase stream of oil, water and gas. Well is inspected at several (at least three) established technological modes of its operation. In mode of operation with high bottom-hole pressure, oil sample is taken by depth sampler at bottom-hole pressure over saturation pressure. Sample of local water (or mixture of local water with injected one) is taken from lower part of development face while well is shut down after oil and water separation in face. In process of well inspection, working interval of pressures and temperatures is identified for monitored volume of flow. Using samples of oil and water taken in process of well inspection, laboratory method is employed to identify time of pulses passage in oil and water; in working range of pressures and temperatures of controlled flow volume. Pressure and temperature of controlled volume are identified when measuring flow rate of oil-gas-water stream. When calculating flow of oil and water, time for passage of acoustic pulses in oil and water is identified at pressure and temperature of controlled flow volume.

EFFECT: improved accuracy in measurement of gas-liquid flow.