Annular Blowout Preventer and Lower Marine Riser Package Connector Unit

摘要

An annular blowout preventer assembly has an annular element housing and a central cavity with an elastomeric annular element in the central cavity. An annular element piston is located within the central cavity in engagement with the annular element. A connector housing has an upper end that abuts a lower end of the annular element housing. Bolts extend upward from the connector housing into threaded blind holes in the annular element housing for securing the connector housing to the annular element housing. A locking element is carried within the connector housing for radial inward movement into engagement with a profile on a mandrel of a blowout preventer stack.

主权项

1. An annular blowout preventer assembly, comprising:
a single-piece annular element housing having a central cavity containing an elastomeric annular element and an annular element piston that strokes axially, relative to an axis of the annular element housing, to deform the annular element radially; and a single-piece connector housing that abuts and is secured to a lower end of the annular element housing, the connector housing containing a locking element and a locking element piston, which axially strokes an actuator element to move the locking element radially inward into engagement with a mandrel of a blowout preventer stack.