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Maintenance methods for common faults of oil drill pipes
release time：2025-06-25
source： network
1. Preliminary classification inspection and straightening: Classify the drill rods that need to be repaired, select the ones that are not severely scrapped, and straighten the bent and deformed drill rods.
2. Rust removal and cleaning: Use an outer wall cleaning unit to perform low-pressure water cleaning on the outer wall of the drill pipe, then transfer it to the drill pipe drilling line for oil and scale removal on the inner wall, then transfer it to the high-pressure water jet inner wall cleaning line for inner wall cleaning, and finally use a gas blowing device to dry the inner wall.
3. Non destructive testing: Transfer the cleaned drill rod to the non-destructive testing line for non-destructive testing of pipe ends, threads, and pipe bodies.
4. Button repair: After straightening, cleaning, and non-destructive testing, select qualified drill rods for the pipe body, and according to the needs, repair the drill rods with intact coupling heads that can be directly repaired using a threading machine.
5. Wear resistant strip welding: Check whether the wear-resistant strip of the drill pipe is intact, and perform wear-resistant strip welding treatment on the drill pipe that needs to be repaired.
6. Spray marking and packaging: Repair qualified drill rods for spray marking, and then proceed to the packaging process.
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