Well selection method and system suitable for tight gas reservoir composite drainage and production process

The invention discloses a well selection method and system suitable for a tight gas reservoir composite drainage and production process, and relates to the technical field of oil and gas field development. The method comprises the steps that a well bore structure and production parameters of a tight gas reservoir gas well are collected, and shaft production pressure drops of the gas well under different gas yields are calculated; according to the foam drainage process efficiency of different given processes, the production pressure drop corresponding to the composite drainage and mining process is calculated; the difference between the production pressure drop corresponding to the composite drainage and mining process and the shaft production pressure drop is calculated, and the pressure drop amplitude corresponding to the composite drainage and mining process is calculated; and based on the pressure drop amplitude, drawing a gas production rate-pressure drop amplitude composite drainage and mining process pl