A Multiphase Fluid Measurement System Based on Standpipe Differential Pressure

Abstract

The application belongs to the technical field of flow measurement, and in particular relates to a multiphase flow fluid measurement system based on standpipe differential pressure. The existing oil-gas-water three-phase flowmeter is harmful to the environment and the human body, and the subsequent cost is relatively high. The application provides a multiphase flow fluid measurement system based on standpipe differential pressure, including a flowmeter module, a density meter module and a data acquisition and processing module, the flowmeter module is connected to the density meter module, and the flowmeter The module performs data communication with the data acquisition and processing module, and the density meter module performs data communication with the data acquisition and processing module; the flow meter module is used to measure the virtual high flow rate of the fluid; the density meter module uses It is used to measure the mixing density and volumetric liquid content of the fluid; the data acquisition and processing module is used to calculate the flow rate of each phase after collecting the data. The mutual coupling between errors is avoided, and the detection accuracy is improved.

Description

Technical field [0001] The present application belongs to the field of flow measurement technology, in particular in relation to a multiphase flow fluid measurement system based on riser differential pressure. Background [0002] As an important strategic resource supporting the national economy and people's livelihood, oil and gas technology and technology such as exploration, exploitation, transportation and processing involve the measurement of multiphase flow, so it is of great significance to be able to accurately measure multiphase flow. [0003] At present, the multiphase flow measurement method commonly used in oilfields mostly uses a test well separator for three-phase separation of oil, gas and water, and then uses single-phase instruments for separate measurement. Although this mode can ensure a certain degree of accuracy, because the separator is generally larger, the price is more expensive, and the separation process is very time-consuming, so this method cannot ach...

AI Technical Summary

Problems solved by technology

Gamma densitometer uses the characteristic that gamma rays have different attenuation rates in different density media to estimate the mixing density of fluids. The disadvantage of this technical solution is that the radioactive source is harmful to the environment and the human body, and its production, Most of the use needs to be approved by the regulatory authorities, resulting in higher later costs

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