Introduction to the use and function of OCTG drill pipe
The purpose of the drill pipe is to transport the drilling mud to the drill bit and together with the drill bit raise, lower or rotate the bottom hole device. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. In the process of oil and gas extraction and refining, drill pipe can be used many times.
The drill pipe is a steel pipe with ribbing at the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of the drill pipe is to transport the drilling mud to the drill bit and together with the drill bit raise, lower or rotate the bottom hole device. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. In the process of oil and gas extraction and refining, drill pipe can be used many times.
The role of the drill pipe is mainly to transmit torque and axial pressure, and to transport flushing fluid, chemical slurry, cement slurry, etc. In wireline drilling, the drill pipe is also the channel for delivering the corer. In some cases, the drill pipe thread is machined into a reverse thread for handling in-hole accidents or reverse skew drilling.
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