Annular BOP

  • Annular BOP
Annular BOP

Annular BOP

BOVE annular blowout preventer must be equipped with a hydraulic control system to be used alone. It is usually used together with the ram blowout preventer and can also be used alone.


The annular blowout preventer can complete the following operations, sealing tools of various shapes and sizes such as kelly, drill pipe joints, drill collars, casings, and cables. When there is no drilling tool in the well, the wellhead can be completely sealed. Under the control of the hydraulic control device or buffer accumulator of the pressure regulating valve, the drilling tool can be forcibly lifted and lowered through the drill pipe joint of the shoulder at 18 ° C.


The design and manufacture of the BOVE BOP is in compliance with the latest version of API 16A standards, which can meet the requirements of extreme working conditions, high and low temperature and acidic environment.
Technical Features:

1. The rubber core has a large amount of rubber storage, and the frictional resistance of the switch is small.

2. Strong well pressure sealing ability.

3. Adopting hemispherical top cover, there is no stress concentration phenomenon under pressure, and the shell is evenly stressed, which is convenient for disassembly.

4. Short piston stroke, low height, and wear ring.5, Using lip seals, long life.

Basic Description:

1. Dimensions: 7 1/16 "(180mm) ~ 30" (760mm)

2. Pressure Rating: 35MPa (5000PSi), 70MPa (10000PSi), 105MPa (15000PSi)

3. Metal Material Temperature Level: T75 (-59 ℃ ~ 121 ℃)

4. Non-metallic Temperature Level: BB (-18 ℃ ~ 93 ℃)

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