The invention provides a gas reservoir production limit evaluation method, device and equipment and a storage medium. The method comprises the steps that on the basis of the current gas price, the critical full-life-cycle cumulative gas
production rate of a gas well under the preset
yield rate is calculated, and on the basis of the critical full-life-cycle cumulative gas
production rate and the first-year gas
production rate proportion of the gas well in the high-water-content tight sandstone gas reservoir area, the critical first-year gas production rate and the critical first-year daily average gas production rate are determined; based on the
water production data and the gas production data of the multiple first-class gas wells, the
linear relation between the daily average gas production rate of the first year and the water-gas ratio is determined, and the critical water-gas ratio is determined; based on the critical water-gas ratio and the critical first-year daily average gas production, reservoir calibration is conducted on the multiple second-class gas wells; and determining the lower limits of
porosity, permeability and gas saturation of the effective reservoir of the high-water-content tight sandstone gas reservoir based on the reservoir
calibration result. According to the method, the gas reservoir production limit is evaluated by combining the economic factors and the gas-water relationship of the gas reservoir, and the accuracy of production limit evaluation is improved.