Flame jet tool for drilling to great depths

Details Flame jet tool for drilling to great depths Flame jet tool for drilling to great depths

1976-06-10

1978-07-11

Purser, Ernest R.

Boring or penetrating the earth

Boring by directly applying heat to fluidize or comminute

Combustion is confined chamber having restricted discharge...

175 94, 175308, 175 98, E21B 714

Patent

active

040995844

ABSTRACT:
A flame jet tool for drilling a hole in the ground at great depths is disclosed. The tool comprises a flame jet lance having a drill bit and an associated fuel system. The lance is disposed in a guide sheath such that the lance may be raised and lowered therefrom. The tool may also include means for capturing debris. In operating the flame jet tool of the present invention, the guide sheath is lowered into a preexisting well hole a specific distance. The guide sheath is fixed to the sides of the hole and the flame jet lance is lowered from the guide sheath. At a predetermined point, the drill bit is ignited and caused to rotate thus increasing the depth of the hole. By the use of the flame jet tool of the present invention, holes of significant depth can be increased and materials of extraordinary hardness can be pierced.

REFERENCES:
patent: 2816735 (1957-12-01), Dalinda et al.
patent: 3045766 (1962-07-01), Fleming, Jr.
patent: 3376942 (1968-04-01), Van Winkle
patent: 3620313 (1971-11-01), Elmore et al.
patent: 3792741 (1974-02-01), Hopler, Jr.
patent: 3856355 (1974-12-01), Grable

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