Water well drill pipes are typically made of high-strength alloy steel, possessing excellent compressive and tensile strength. Their basic structure consists of two parts: the pipe body and the connecting joints. The pipe body is the main component of the drill pipe, responsible for bearing the various stresses generated during drilling; the connecting joints are used to connect multiple drill pipes to form a drill string of sufficient length to meet the drilling needs of water wells at different depths.
In drilling operations, the primary function of the drill pipe is to transmit power. The rotational power and axial pressure generated by the drilling rig are transmitted to the drill bit through the drill pipe, enabling the drill bit to break through geological layers such as rock and soil, gradually drilling downwards. Simultaneously, the drill pipe also undertakes the task of circulating drilling fluid. The drilling fluid is transported from the surface through the inner cavity of the drill pipe to the bottom of the well, cooling and lubricating the drill bit, and then carrying the broken rock cuttings back to the surface, keeping the bottom of the well clean and ensuring the smooth progress of drilling operations.