The plastic deformation force is determined by the structure of expansion cone, and one of the key factors is the expansion cone angle. Based on numerical simulation of solid expandable tubular expansion process, stamping and expansion cone was obtained in different exposure conditions in different expansion rate, expansion pipe wall thickness and different conditions, relation between expansion and expansion cone angle. The optimized expansion cone angle can be determined when expandable tubular material was selected and the expansion rate was identified. A new PZG-bj expansion cone material was developed, and coordinated with internal lubrication coatings. Under experimental continuous expansion, its service life had reached 150 meters without significant injury. In laboratory experiment under the condition of continuous expansion accumulated, its service life had reached 450 meters without significant injury. A drillable launcher with extrusion molding launching cavity was developed that was relatively simple, low cost, high reliability, and single subsidy efficiency can be increased by 50%.