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

The invention discloses an intelligent metering and monitoring integrated system for a crude oil gathering and transportation line, and belongs to the field of oil and gas gathering and transportation management systems. The intelligent metering and monitoring integrated system comprises a metering device and a monitoring device, the metering device comprises a crude oil storage tank, a spiral single-rotor flow meter, a gas-liquid separator, a double-frequency type yield integrating instrument, an oil and gas storage tank and a liquid storage tank, and the double-frequency type yield integrating instrument comprises a gas quantity metering module, a liquid quantity metering module and a water content analysis module. Gas-liquid separation is performed on crude oil by the aid of the gas-liquid separator, the yield of oil and gas is calculated by the aid of the double-frequency type yield integrating instrument, meanwhile, separated liquid is weighed, water content analysis is performed, then the yield of the c