Method and device for extinguishing fires in oil wells

Details Method and device for extinguishing fires in oil wells Method and device for extinguishing fires in oil wells

1975-01-31

1976-08-10

Love, John J.

Fire extinguishers

Processes

Of extinguishing fire

166 55, 169 69, 251212, 251DIG3, E21B 2900, A62C 304

Patent

active

039736318

ABSTRACT:
A method and apparatus for extinguishing oil well fires in wells having an inner pipe and an outer pipe separated by an annular space. A plurality of rod-like members as drills are inserted in a common horizontal plane at equal radial spacing through the walls of both the inner and the outer pipes. The drills have interfitting inner ends which, when placed in side-by-side relationship, form a continuous wall equal to the internal cross section of the inner pipe. Accordingly, the inner pipe is closed against the passage of oil or gas therethrough. A valved pipe is inserted through the wall of the outer pipe below the drills to form a communicating passageway. A member is inserted through the valved pipe and into the annular space to gradually fill the space between the inner and outer pipes to form a seal therein against the passage of oil or gas therethrough.

REFERENCES:
patent: 1879160 (1932-09-01), Fowzer
patent: 3039531 (1962-06-01), Scott
patent: 3716068 (1973-02-01), Addison
patent: 3766979 (1973-10-01), Petrick

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