Ram type blowout preventer

Details Ram type blowout preventer Ram type blowout preventer

1993-02-11

1993-10-26

Fox, John C.

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

277 27, E21B 3306

Patent

active

052558908

ABSTRACT:
There is disclosed a ram type blowout preventer wherein the outer ends of guideways radiating from the bore of the body to receive the rams are closed by bonnets bolted to the body and sealed with respect to the body by a seal assembly received in a recess in the inner face of the bonnet for sealing between the inner face of the bonnet and the outer face of the body about the outer end of the guideway to contain internal pressure in the preventer.

REFERENCES:
patent: 4602806 (1986-07-01), Soliger
patent: 4638972 (1987-01-01), James et al.
patent: 4982889 (1991-01-01), Eardley
patent: 5165704 (1992-11-01), Schaeper et al.
Hydril Operator's Manual, pp. 1-1 (6553-7/80), 3-3 (6553-3/80), and 3-3 (6715-12/81), 183/4" Ram Blowout Preventers.
Cameron Iron Works, "Torque Requirements Slashed with New Cameron BOP Seal Carrier," p. 7 (with `U` BOP-FIG. 1).
Cameron Iron Works, Drilling Systems: Ram-Type Blowout Preventers, 1988, pp. 642, 643, 646 and 647.
Cameron Iron Works, Drilling Systems: Ram-Type Blowout Preventers, 1988, UII BOP, pp. 650-653.
NL Shaffer, "Protected Hydraulic System . . . Simplified Ram Changing and Maintenance . . . Long-Wearing Seals".
Koomey Inc., J-Line, "Blowout Preventers," Model PB and Model L (two pages).

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