What are the precautions for using a blowout preventer?

What are the precautions for using a blowout preventer?

1. Close the blowout preventer as much as possible to check the sealing effect according to relevant regulations. If the rubber core fails or other problems occur, it should be replaced immediately.

2. Spare parts for BOP cores should be properly stored.

3. No long-term shut-in operation

4. When the blowout preventer is in the closed state, it is allowed to slowly move the string up and down, but it is not allowed to rotate the string

5. It is strictly forbidden to use a micro-open blowout preventer as a mud scraper to release the pressure of the casing

6. Only diagonal welded bit joints can be used when closing and starting.

7. After each opening of the BOP, check whether the BOP is opened to prevent damage to the BOP.

8. Standard hydraulic oil should be used to clean the BOP when opening and closing

9. The oil pressure controlled by the sealing fluid should not be too large, the oil pressure controlled by the sealing fluid should not exceed 15 trillion Pa, and the oil pressure controlled by the sealing fluid should not exceed 10:5MPa

10. After setting the BOP, the zero seal test is usually not carried out, but the seal test must be carried out as required.