1.Standard:API6A 2.Bore size:7 1/16-21 1/4 3.Material :forged and casing 4.Pressure: 2000-10000psi
Annular Blowout Preventer BOP
| Size | 7-1/16"- 21-1/4" |
| Pressure | 2000PSI-20000PSI |
| Standard | API 16A |
| Material | Forged or Casting |
An annular blowout preventer uses the principle of a wedge to shut in the wellbore. It has a donut-like rubber seal, known as an elastomeric packing unit, reinforced with steel ribs. The packing unit is situated in the BOP housing between the head and hydraulic piston.
When the piston is actuated, its upward thrust forces the packing unit to constrict, like a sphincter, sealing the annulus or open hole. Annular preventers have only two moving parts, piston and packing unit, making them simple and easy to maintain relative to ram preventers.
Annular BOP Blowout Preventer
