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Precautions for drill pipe installation:

release time：2024-03-11

source： network

Precautions for drill pipe installation:

1. Align the hole position. Do not operate the drill pipe, but be careful not to "do not" the drill pipe.
2. Drill. The process of extending the drill pipe by overcoming the frictional force on the hole wall and the buoyancy of the mud under the gravity of the drill pipe and drilling tools is called releasing the drill.
The correct drilling sequence is: the outer rod is lowered into place, and the adjacent inner rods begin to extend from the inner rod, from the outer rod to the inner rod, and are completed one by one.
3. Drill, apply pressure, and rotate forward at an appropriate rotational speed.
4. Unload the soil to the bottom. Be careful not to "miss" the drill pipe when unloading and bottoming.
Attention: When using friction drill rods for drilling, each time includes five sequences: "hole positioning, drilling, drilling, lifting, unloading and bottoming". To achieve "not falling into order", "not disorderly order", and "not arbitrarily adding order".

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