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U.S. Department of Energy
Office of Scientific and Technical Information

Diverter system and blowout preventer

Patent ·
OSTI ID:5838901
A diverter spool adapted for use in a drilling fluid return system is described comprising, a diverter housing adapted for connection with a casing string at a position below sea level, the diverter housing having an axial internal bore for carrying drilling fluid and a radial outlet passage between the bore and the exterior of the housing, a diverter piston means having a sleeve slidable disposed adjacent the radial outlet passage, the piston means movable relative to the outlet passage for the outlet passage for closing the outlet passage to the sea in a closed position and to open the bore of the housing to the sea when the diverter piston means is in the open position.
Assignee:
Hydril Co., Los Angeles, CA
Patent Number(s):
US 4832126
OSTI ID:
5838901
Country of Publication:
United States
Language:
English