When the early expansion cone is used to expand solid expandable tubular, the great axial force will be needed and the length of the tube will be reduced considerably.

• 早期的膨胀锥在应用于实体管膨胀时,不但需要较大的轴向力,而且存在套管膨胀后的轴向尺寸会有较大的减小等难题。