The maintenance and upkeep of the blowout preventer are crucial, and the following are some precautions:

routine inspection

-Appearance inspection: Regularly inspect the appearance of the blowout preventer to check for corrosion, cracks, deformation, and other conditions. It is important to inspect the surface integrity of parts such as the casing of the gate blowout preventer and the rubber core of the annular blowout preventer, as these parts come into direct contact with the high-pressure fluid inside the well and are prone to damage.

-Inspection of connection parts: Check whether the connecting bolts are loose and ensure that the connection between the blowout preventer and the wellhead equipment and other devices is firm. For the flange connection part, it is necessary to check whether the sealing gasket is intact and whether there are any signs of leakage.

regular maintenance

-Lubrication work: Regularly lubricate the moving parts of the blowout preventer, such as the moving parts of the gate and the moving parts of the annular blowout preventer piston. Choose the appropriate lubricant and strictly follow the requirements of the equipment manual to ensure smooth movement of these components.

-Cleaning work: After the drilling operation is completed, the blowout preventer should be cleaned. Remove oil, sediment, and other impurities inside and outside the blowout preventer, as these impurities may affect the performance of the equipment and even lead to increased component wear.

Functional Testing

-Action testing: Regularly conduct action testing on the blowout preventer, including the opening and closing actions of the gate, the tightening and loosening actions of the annular blowout preventer rubber core, etc. Ensure that these functions are functioning properly through testing, and pay attention to observing the operating status of the equipment during the testing process to check for any abnormal sounds or lagging.

-Pressure testing: Conduct pressure testing on the blowout preventer according to the prescribed cycle, simulate the high-pressure environment inside the well, and check the sealing performance of the blowout preventer under different pressures. Stress testing requires the use of professional testing equipment and strict adherence to testing procedures and safety regulations.

component replacement

-Replacement of vulnerable parts: Replace vulnerable parts in a timely manner, such as gate seals, annular blowout preventer rubber cores, etc. These components are prone to damage after long-term use or exposure to high pressure, and should be replaced according to their service life and actual usage to ensure the performance of the blowout preventer.

-Aging component replacement: For components that show signs of aging after long-term use, such as rubber component aging, metal component fatigue, etc., they should also be replaced in a timely manner. And after replacing the components, the equipment needs to be retested and inspected.

storage environment

-Dry and ventilated: When the anti spray device is temporarily not in use, it should be stored in a dry and ventilated environment to prevent the equipment from getting damp and rusting. If it is in a humid environment such as the seaside, additional moisture-proof measures need to be taken, such as using desiccants.

-Avoid damage: During storage, avoid collision or compression of the spray preventer to prevent deformation and damage to the equipment. And it is necessary to label and record the stored devices for easy maintenance and use in the future.