The working environment of water well drill pipes is extremely complex and harsh. Underground geological conditions vary greatly, potentially encountering hard rock layers, soft sand layers, mudstone layers, and other different formations. When drilling through hard rock layers, the drill pipe must withstand enormous rotational resistance and axial pressure, easily leading to wear and fatigue fracture. In soft formations, the drill pipe may encounter wellbore collapse, mud pockets, and other problems, affecting drilling efficiency and safety.
Furthermore, the properties of the drilling fluid also affect the drill pipe. If the drilling fluid is highly corrosive, it will accelerate the corrosion and wear of the drill pipe, reducing its service life. Simultaneously, high-temperature environments can alter the mechanical properties of the drill pipe material, increasing the risk of drill pipe failure.