company news about What Should I Pay Attention to Before Going Down the Drill Pipe?

Before the drill pipe is used in the well, the internal thread joints should be placed neatly in the direction of the drill floor according to specifications, and placed on a movable drill pipe rack with sufficient piers above 0.3m above the ground to prevent corrosion of the drill pipe by water, moisture, soil, etc. ; The drill pipe rack should be kept parallel and at the same level to prevent the drill pipe from bending and deforming; the drill pipes at both ends of the pipe rack should be clamped with plugs to prevent the drill pipe from rolling and falling.

Before placing the drill pipe on the drill floor, the threads of the drill pipe joint and the shoulder sealing surface should be thoroughly cleaned and inspected to confirm that they are in good condition before use. When the drill pipe moves up and down on the drill floor, the drill pipe joint must wear a protective wire (steel protective wire is recommended) to prevent the joint thread and shoulder surface from being bumped and damaged during the drawing process.

During the process of lifting the drill pipe along the slideway on the drill floor, the drawworks should maintain a constant speed as much as possible. When the drill pipe leaves the slideway, it should be blocked manually with a soft rope to prevent collision.

Before making a single connection at the wellhead, the connection threads and shoulder sealing surfaces should be cleaned and inspected again. After confirming that there is no problem, oil containing 60% fine metal lead powder or 40-60% fine metal zinc powder should be added. The threads of the joint and the sealing shoulder surface should be fully and evenly coated with special thread oil for drilling tools (the threads and shoulder surfaces of the orifice plate female joint should also be fully and evenly coated with special thread oil), and dust should be prevented at the same time. Foreign matter mixed into the thread oil may affect the performance of the thread oil or scratch the thread and shoulder sealing surfaces.