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Explain the use conditions of drill pipe
Release time:
2019-06-05
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Explain the conditions of use of drill pipes: 1. The rated torque of the selected drill pipe is greater than the large torque of the drilling rig. The rotation speed of the drilling machine shall be less than the rotation speed of the drill pipe (the impact of the moment of inertia of the drilling tool on the drill pipe shall be less than the rated torque of the drill pipe). 2. In a certain stratum, when the sum of the weight of the completely unextended drill pipe cannot make the drill teeth of the drill tool eat into the native soil layer, it is not allowed to use the friction drill pipe to drill. 3. When using friction resistance drill pipe to drill inclined holes, the telescopic direction of drill pipe must be well guided when using casing and drilling tools, and the included angle between the center lines of pipe joints must not exceed 0.4 degrees. 4. Drill vertical holes, and the drilling inclination exceeds "JTJ
Explain the use conditions of drill pipe
On the use of drill pipe to explain the conditions:
1. The rated torque of the selected drill pipe should be greater than the large torque of the drilling rig. The rotation speed of the drilling machine shall be less than the rotation speed of the drill pipe (the impact of the moment of inertia of the drilling tool on the drill pipe shall be less than the rated torque of the drill pipe).
2. In a certain stratum, when the sum of the weight of the completely unextended drill pipe cannot make the drill teeth of the drill tool eat into the native soil layer, it is not allowed to use the friction drill pipe to drill.
3. When using friction resistance drill pipe to drill inclined holes, the telescopic direction of drill pipe must be well guided when using casing and drilling tools, and the included angle between the center lines of pipe joints must not exceed 0.4 degrees.
4, drilling vertical holes, drilling inclination exceeds the "JTJ041-2000 highway bridge and culvert construction technical specifications" on the provisions of the hole inclination, easy to cause damage to the friction drill pipe.Shandong Yikuang Science and Technology Drill Pipe, Spiral Drill Pipe, Geological Drill Pipe-Sales Hotline: 13508920928,0635-2311078
Key words:
Use, drill pipe, torque, less than, explain, rated, geological drill pipe, spiral drill pipe
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