Turbine drill for drilling at great depths

Details Turbine drill for drilling at great depths Turbine drill for drilling at great depths

1976-11-22

1977-10-04

Leppink, James A.

Boring or penetrating the earth

With below-ground tool drive prime mover

Below-ground storage of motivating energy

175107, E21B 308

Patent

active

040519090

ABSTRACT:
A drilling device is disclosed which comprises a tubular drilling lance adapted to being lowered to great depths in the earth's surface and being raised therefrom. Disposed within the drilling lance is an energy generating system which comprises a fluid vaporizing system and a turbine coupled to the vaporizing system by a closed fluid circuit. Coupled to the turbine and extending outwardly from the drilling lance is a drill bit. The drilling device is configured such that vaporized fluid activates the turbine, which in turn, makes the drill bit operable.

REFERENCES:
patent: 2673069 (1954-03-01), Carpenter
patent: 2828945 (1958-04-01), New
patent: 3083779 (1963-04-01), Rowley
patent: 3280923 (1966-10-01), Muench
patent: 3620313 (1971-11-01), Elmore

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