Method for predicting productivity of vertical well of gas storage under conditions of inter-well interference and strong injection and production

The invention provides a gas storage vertical well productivity prediction method under inter-well interference and strong injection and production conditions. The gas storage vertical well productivity prediction method comprises the steps that basic data of a natural gas underground gas storage target stratum are obtained; based on the basic data of the target stratum of the natural gas underground gas storage and the plumb shaft productivity prediction mathematical model, calculating a pressure superposition solution of the target plumb shaft under the conditions of inter-well interference and strong injection and production by using a superposition principle, and obtaining a bottom hole pressure solution of the plumb shaft productivity prediction mathematical model and the target plumb shaft; and obtaining a yield solution of the target vertical well based on the bottom hole pressure solution, and predicting the productivity of the target vertical well in the natural gas underground gas storage. On the ba