Gas-containing crude oil metering device for single well mouth and small well site

The utility model discloses a gas-containing crude oil metering device for a single well mouth and a small well site, which comprises a main pipeline and a branch pipeline, the device comprises an inlet pipeline, an inlet valve, a gas eliminator front pipeline, a filtering gas eliminator, a gas eliminator rear pipeline, a gas-liquid mass flow meter, a meter rear short connecting pipe, an outlet valve, a check valve and an outlet pipeline which are sequentially connected end to end, wherein the gas eliminator rear pipeline is a U-shaped pipe. According to the gas-containing crude oil metering device for the single well mouth and the small well site, under the working condition that the medium contains gas, direct metering can be carried out on parameters such as mass flow, water content, temperature and density of crude oil in the medium without separation equipment, the whole metering process is very simple and convenient, gas-liquid two-phase flow does not need to be sorted, and the metering efficiency is im