Wellhead fire extinguisher and method extinguishing a well fire

Details Wellhead fire extinguisher and method extinguishing a well fire Wellhead fire extinguisher and method extinguishing a well fire

1991-10-02

1992-10-13

Focarino, Margaret A.

Fire extinguishers

Processes

Of extinguishing fire

169 47, 169 48, 169 52, 169 69, A62C 306

Patent

active

051542340

ABSTRACT:
A wellhead fire extinguishing apparatus comprises a flame containment housing which is lowered into place above the wellhead fire to create a chimney-like updraft and draw the fire surrounding the wellhead into the housing. The housing is then lowered to the well platform or ground and the flame is cooled by a coolant/flame retardant to cause the ignition point of the flame to rise above a flapper valve in the housing. The flapper valve is closed by remote actuation to separate the flame from the fuel flowing from the wellhead. The unburned fuel is vented from the housing and the flame is extinguished by the coolant/flame retardant.

REFERENCES:
patent: 1520288 (1924-12-01), Featherstone
patent: 1807498 (1931-05-01), Teed
patent: 1857788 (1932-05-01), Murphy
patent: 1859606 (1932-05-01), Sievern et al.
patent: 1921739 (1933-08-01), Fleischmann
patent: 3887011 (1975-06-01), Dokes et al.
patent: 4323118 (1982-04-01), Bergmann
patent: 4337831 (1982-07-01), Thaxton

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