Intelligent metering and monitoring integrated system for crude oil gathering and transportation line

The utility model discloses an intelligent metering and monitoring integrated system for a crude oil gathering and transportation line, which belongs to the field of oil and gas gathering and transportation management systems and comprises a metering device and a monitoring device, and the metering device comprises a crude oil storage tank, a spiral single-rotor flow meter, a gas-liquid separator, a double-frequency yield integrating instrument, an oil and gas storage tank and a liquid storage tank. The double-frequency yield integrating instrument comprises a gas quantity metering module, a liquid quantity metering module and a water content analysis module; the method comprises the following steps: performing gas-liquid separation on crude oil by using a gas-liquid separator, calculating the yield of oil gas by using a double-frequency yield integrating instrument, weighing separated liquid, performing water content analysis, calculating the yield of the crude oil, and storing the separated oil gas and liqu