downhole drilling tools pdf
1.Downhole drilling machine: When drilling a downhole gun hole with a aperture less than 150 mm, in addition to the application of a rock drill, it can also be used to drill a small diameter of 80 ~ 150 mm. When drilling a gun hole with a diameter of less than 70 mm in coal or softer mineral rock, it is generally used to drill or air drill, driven by a motor (or air motor) to drill the drill pipe, and the rock (coal) chips drilled out are discharged through the spiral groove on the drill pipe.
- Versatility Bullet teeth are applicable across various industries, making them a versatile tool for multiple applications.
When the pile driver is working, the pile driver should be reliably grounded to reduce the risk of personal electric shock.
Conclusion
At its core, submarine hammer drilling employs a powerful hammer mechanism to drive a drill bit into the seabed. The system utilizes both air and water pressure to deliver repeated impacts on the drill bit, which enables it to break through hard rock formations or sediments that might hinder installation efforts for marine infrastructure. The design of the hammer ensures that the energy is efficiently transmitted to the drill bit, allowing it to operate at significant depths.
Advantages of Submarine Hammer Drilling
Before use, check the mechanical structure and the hydraulic system, as well as the water level in the diesel engine's water tank and the motor oil level. If everything is normal, you can start the diesel engine. After running at a low speed without load for 3-5 minutes, you can begin work.
(3) If the impeller or the inlet and outlet water pipe is blocked, the impeller or pipe can be cleaned, and if the impeller is seriously worn, it should be replaced. If the filler mouth leaks, press the filler. If the conveying height is too high or the tube loss resistance is too large, the conveying height should be reduced or the resistance reduced.
The horizontal slurry pump should be used for regular maintenance. This can effectively avoid the problem of slurry pump blockage, and if you encounter these problems in the process of using slurry pump in the later stage, you can solve them according to the above steps.
(3) If the impeller or the inlet and outlet water pipe is blocked, the impeller or pipe can be cleaned, and if the impeller is seriously worn, it should be replaced. If the filler mouth leaks, press the filler. If the conveying height is too high or the tube loss resistance is too large, the conveying height should be reduced or the resistance reduced.
The horizontal slurry pump should be used for regular maintenance. This can effectively avoid the problem of slurry pump blockage, and if you encounter these problems in the process of using slurry pump in the later stage, you can solve them according to the above steps.