Precautions in use of drill pipe

　　When the new drill pipe is put into use for the first time, it is recommended to screw down the joint twice at a torque slightly lower than the specified value at the wellhead. After confirming that the joint thread and sealing surface are in good condition, apply enough and even thread oil and tighten the joint thread according to the specified torque, and then put it into use. High Quality Drill Pipe for Drilling of the running in thread is conducive to strengthening the surface hardness of the thread, enhancing the anti sticking performance of the thread, and prolonging the service life of the drill pipe.

　　When butting the drill pipe at the wellhead, it is necessary to conduct manual centralization and lead-in to prevent the male joint from impacting the female joint end face or thread, causing damage; then, it is necessary to use chain pliers for manual thread recognition, introduce at least two threads, and then use hydraulic power pliers to tighten the thread of the drill pipe joint according to the specified torque (different steel grade, specification, water hole size, and the required tightening torque are also different, which must be carefully distinguished Treat).