Method and system for detecting daily gas production rate measurement deviation of water breakthrough gas well

The invention relates to the technical field of oil and gas field exploitation, in particular to a method and system for detecting daily gas production rate measurement deviation of a water breakthrough gas well. The method comprises the following steps of establishing a daily gas production model, and when the daily gas production model meets the condition that oil pressure and daily water production data are input, outputting theoretical daily gas production; and comparing the obtained theoretical daily gas production rate with the actual daily gas production rate measured by the equipment, and judging whether metering deviation occurs in the equipment or not according to a comparison result. According to the method for detecting the daily gas production rate measurement deviation of the water breakthrough gas well, the daily gas production rate obtained through the daily gas production rate model is compared with the daily gas production rate collected by existing equipment, so that whether metering deviat