Method and device for extinguishing fires in oil wells
A method and apparatus are claimed 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.
- Assignee:
- TIC; ERA-02-006599; EDB-77-000252
- Patent Number(s):
- US 3973631
- OSTI ID:
- 7350177
- Country of Publication:
- United States
- Language:
- English
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