Points to pay attention to when using horizontal directional drilling rigs

According to the torque, push-pull force and allowable small curvature radius of the horizontal directional drilling rig, select the drill pipe with the appropriate specification and model. Note that when clamping the drill pipe with a vise, do not clamp the female buckle part of the female joint to prevent the female buckle from being clamped and deformed. Before installing the drill pipe, clean the pin and box, and apply thread oil (the thread oil cannot be replaced by other waste oil or inferior pressure oil) to prevent premature wear or damage of the pin and box. Be careful not to forcibly buckle up. When buckling, the male buckle cannot impact the shoulder and thread of the female buckle, and ensure the centering of the male and female joints. Ensure the coaxiality of the shackle of the drilling rig and the main shaft of the power head.
Pay attention to the damage of the short connection type of the drill collar (wrong connection, random connection, severe wear, etc.), and it should be replaced in time to avoid damage to the drill pipe thread. Avoid mixing drill pipes with different button types, even if they are not produced by the same manufacturer (because the technical parameters, processing methods, props used, and mechanical equipment of each manufacturer's drill pipes are different, the tolerances and close distances of drill pipes processed are different. Do not mix drill pipes with a large difference between old and new, and with a large difference in wear degree, so as to avoid construction hazards. Use qualified zinc-based thread grease, butter is not suitable for thread thread oil. Insufficient thread grease will cause high points of damage to the shoulder of the joint, which will easily "loosen" the threaded connection and cause thread damage. If thread compound is not used or unqualified thread compound is used, the surface of the threaded thread will be bonded, resulting in sticking.