Loading and unloading method of drill pipe
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1. Install and check the drill pipe, whether there is any abnormality in the joints, and whether the size meets the requirements for use. Take timely treatment measures for the drill pipe that cannot meet the requirements for use. It is strictly forbidden to use the drill pipe that still fails to meet the requirements after the measures are taken.
2. For drill pipes that require critical use, use feasible protective measures during installation.
3. Protect the surface rigidity of the drill pipe joints. It is strictly forbidden to blindly polish the joints without measurement to destroy the surface hardness.
4. During installation, check again whether the joint is complete and the pin hole is smooth, especially whether the piercing pin is intact, the pin head is swollen, and the piercing pin with burrs is strictly prohibited. The hammer piercing pin must be isolated with rigid and soft materials. It is recommended Use a copper rod to hammer and install.
5. For the disassembly type, it is strictly forbidden to use materials with rigidity greater than the penetration pin to strike the piercing pin. The drill pipe needs to be symmetrically striked. It is strictly forbidden to hammer in a single direction with strong equipment. Forcible use will inevitably cause hidden Sexual injury.
6. Spare drill pipes must be rust-proofed. For drill pipes stored for a long time, they must be rolled 180° a week to prevent losses due to natural bending during storage.
7. For drill pipe pins that are difficult to disassemble, choose small grinding wheels to grind holes, heating with electric drills, impact electric hammer hammering, symmetrical rotation strikes, etc., and then use electric welding with pin puller disassembly, etc., and oxygen cutting is required as much as possible Protect the integrity of the convex-concave joint and ensure that it can be restored to the original use requirements.
