Speed pipe blanking plug opening method and speed pipe communicating method

The invention discloses a speed pipe blanking plug opening method, a speed pipe communication method and a speed pipe blanking plug opening method, and the speed pipe blanking plug opening method comprises the steps that an impact rod is thrown with a preset weight into a speed pipe, so as to utilize the impact force of the impact rod to burst through a blanking plug in the speed pipe; and the blanking plug is opened by adopting the impact rod, so that a speed pipe is not pressed by a high-pressure nitrogen vehicle (or a cementing truck) on site to cut off a blanking plug pin, the cost and theoperation matching time for renting the high-pressure nitrogen vehicle (or the cementing truck) are saved, the pollution of high-pressure gas (liquid) entering a shaft to a reservoir is reduced, andthe reservoir protection of a gas well is realized. It is predicted that the operation cost can be saved by 30% or above, the operation time is shortened by 1 day or longer, and the speed tube technology application and popula