| 摘要 |
A blowout preventer assembly (1) is provided and is generally configured having an upper housing (5), a lower housing (10) with a plurality of internally interconnected cylinders (160), a one piece energizing ring (15), and a plurality of individual bottom cover plates (65) all enclosing a lower housing column bore (130) for receiving well pipe. The blowout preventer assembly (1) also has a plurality of annular pistons (40), a plurality of associated glands (45) disposed in each cylinder with each piston, a main seal (25) with a plurality of main seal ribs, an adaptor ring (30), and various dedicated and associated seals and threaded attachments. |
