Method for designing well wall of coal-bed gas well

The invention belongs to the technical field of coal-bed gas development, and particularly relates to a coal-bed gas well wall design method. According to the method, a coal seam crack formed by fracturing of a coal-bed gas well is filled with consolidation proppants, the consolidation proppants can be mutually adhered and consolidated in the coal seam crack to form a supporting strip, so that the consolidation proppants are prevented from being embedded into a coal seam, the coal seam crack is prevented from being closed and collapsed, and the method has the advantages that firstly, the desorption area of the coal seam is increased; desorption gas is greatly increased, so that the gas production rate of a single well is improved; and secondly, the coal seam crack becomes a stable seepage channel with high flow conductivity, so that the permeability and the stability of the coal seam are enhanced, and the high yield and the stable yield of the coal-bed gas well are further realized. 本申请属于煤层气开发技术领域，具体涉及一种煤层气井井