Reservoir plugging and water blocking removal agent for gas well, design method, preparation method and application

The invention provides a reservoir plugging and water blocking removal agent for a gas well, a design method, a preparation method and application. The design method comprises the following steps of obtaining wellhead basic data, analyzing gas well reservoir pollution, and designing a reservoir plugging and water blocking removal agent system according to the wellhead basic data and a gas well reservoir pollution analysis result. According to the invention, targeted functional sections are designed, localized chemical material type selection is carried out on each functional section, and finally preparation is carried out according to the selected chemical materials. The reservoir plugging and water blocking removal agent system design, chemical material type selection and preparation for the gas well are more targeted and accurate, only one measure needs to be taken when the reservoir plugging and water blocking removal agent for the gas well is used, the permeability recovery rate reaches 90.47% at most, af