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Precautions For Tapered bit
Posted By drilling kaiqiu
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Note for Tapered Bit:
- Pay attention to check the water and gas pipeline at any time, and whether the bolts and nuts of each accessory are firm;
- Pay attention to check the lubricating oil condition of the wind motor at any time;
- When the working surface is immersed in water, a large diameter drill bit should be used when opening the hole, and the drill pipe should be inserted to allow the drill pipe to be 1-2 meters above the water surface to prevent mud and slag from falling into the hole.
- It is not allowed to reverse at noon during drilling operations to prevent the drill rod from falling into the hole;.
- When stopping work in a short period of time, give a small amount of air pressure to prevent sand from invading the inside of the Drill pipe. If you stop Drill pipe for a long time, you should lift the impactor 1-2 meters from the bottom of the hole to fix it.
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