Abstract:
The purpose of the research is to develop a system, that ensures the operation of the device for measuring the flow rate of the multiphase flow components and performs three tasks: measuring the flow rate of the liquid and gas phases separately from each other; measuring two-phase flow stream, consisting of one liquid and one gas, and measuring three-phase flow stream, consisting of oil, gas and water. The elements of the system are a preparation unit of one or two liquid and one gas phase; units of measurement of liquid and gas phases before their mixing; mixing unit into a single multi-phase flow; a device for measuring the flow rate of the multi-phase flow and the separation unit for consequent return to the measurement system. The main part of the proposed system is a measuring line of the multi-phase flow, comprising 5 measuring devices: 3 flow meters different in the operating principle (ultrasonic, acoustoelectric and acoustomagnetoelectric), and 2 sensors that display the pressure and temperature in fact. For measuring three-phase flow components of the stream consisting of oil, gas and water, a new element — a separation unit for separating liquids, is introduced into the existing scheme. This allows getting one more measurement channel with the liquid, whose density is different from the density of the liquid in two-phase flow. By introducing more transmitters, it is expected to receive more channels of information gathering in order to increase the measurement accuracy compared with the existing devices.