Before the drill pipe is used in the well, the internal threaded joint should be neatly placed on the theme activity drill pipe rack 0.3M above the road surface and with sufficient piers according to the specifications and models to avoid water, moisture in the body, etc. The soil, etc. will cause rust on the drill pipe; the drill pipe pipe support should be maintained on a parallel surface and on the same level surface to avoid bending and deformation of the drill pipe; the drill pipe located on both sides of the pipe support should be fastened with plugs to avoid The drill pipe flips and falls.
When the drill pipe is drilled, the thread of the drill pipe joint and the shoulder surface should be completely removed and inspected. After confirming that it is intact, it can be used in the well. During the whole process of the drill pipe going up and down the drill floor, the drill pipe joint must be equipped with a protective wire (it is recommended to use a steel protective wire) to avoid bumping of the joint thread and shoulder surface during the whole process of lifting and tightening. touch, damage.
During the whole process of hoisting the drill pipe on the drill floor along the slide rail, the hoisting winch should maintain a uniform speed as much as possible.
Before the wellbore is connected to the single line, the joint thread and shoulder surface should be cleaned and inspected again. After confirming that there is no problem, the lead powder with 60% fine metal material or 40-60% fine metal material zinc A certain amount of powdered threaded oil for crude oil drilling tools should be wiped evenly on the joint thread and the surface of the sealing shoulder (the thread and shoulder surface of the nozzle female joint should also be wiped evenly with a certain amount of special threaded oil. ), in addition to avoid sand and its dirt from infiltrating into the thread oil, endangering the characteristics of thread care oil or scratching the thread and shoulder surface.
