The Role Of Top Hammer Drilling Tools

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DTH Drill Pipe is a steel pipe with a thread 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.

DTH Drill Pipe is a steel pipe with a thread 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 raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand huge internal and external pressure, twisting, bending and vibration.
      The kelly is located at the upper end of the drill string and consists of upper and lower joints and a pipe body. The pipe body has two structures: square or hexagonal (most of the oil drilling is square structure); the upper joint is a left-handed female thread (back buckle), which is connected to the faucet, and the left-handed female thread prevents undercut during the rotation; the lower joint It is a right-handed male thread and is connected with the drill pipe. When working, the upper end of the kelly rod is always above the turntable surface, and the lower part is below the turntable surface.
Understand the role of Top Hammer Drilling Tools:
①When drilling, the kelly rod is matched with the core and the turntable to transfer the ground rotation torque to the drill rod to drive the drill string and drill bit to rotate;
② Bearing the full weight of the drill string;
③ Channel for circulation of drilling fluid.

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