Electrical Subsea & Drilling As

John L Alsup

Bolie C Williams

Erik Norbom

J Gilbert Nance

Thor Arne Haverstad

A packer actuation system for a blowout preventer includes a packer arrangement with an axial passage therethrough, an actuation system which is releasably mechanically connected to the packer arrangement, a contractor arrangement, and a retractor arrangement. The actuation system moves the packer arrangement from an expanded position to a contracted position so as to decrease a dimension of the axial passage, and to move the packer arrangement from the contracted position to the expanded position so as to increase the dimension of the axial passage. The contractor arrangement moves the packer arrangement from the expanded position to the contracted position. The retractor arrangement moves the packer arrangement from the contracted position to the expanded position.

Annular blowout preventer

A ram for a blowout preventer, the ram having a top side and a bottom side, a front and a back; a first front seal face and a second front seal face provided on the front of the ram; a fluid communication channel extending through the ram from the front to the back thereof, the first front seal face being provided above and the second seal face below the fluid communication channel.

Growing community of inventors

Houston, TX, United States of America

John L Alsup