Boring or penetrating the earth – With below-ground tool drive prime mover – Electric
Patent
1990-02-08
1991-05-28
Britts, Ramon S.
Boring or penetrating the earth
With below-ground tool drive prime mover
Electric
175293, 175381, F21B 412
Patent
active
050185900
ABSTRACT:
Oil drilling apparatus for drilling deep boreholes. The apparatus includes a high frequency, high voltage, AC generator at the surface of the ground which is connected to an electromagnetic hammer drill bit located at the bottom of the borehole. Electric current is conducted along a special drill string to the electromagnetic hammer drill located at the bottom of the borehole. The drill string is electrically conductive to form a current flow path to the downhole electromagnetic hammer drill, while at the same time, drilling fluid flows along an axial flow path to the vibrating bit located at the bottom of the borehole. The electrically conductive drill pipe, the electromagnetic hamemr drill bit, and the pulse transformer, each form a subcombination of the present invention; and, jointly comprise a new method and apparatus for forming boreholes.
REFERENCES:
patent: 2072470 (1937-03-01), Thompson
patent: 2830791 (1958-04-01), Smith
patent: 2893692 (1959-07-01), Marx
patent: 2950088 (1960-08-01), Scott
patent: 4722402 (1988-02-01), Weldon
Bagnell David J.
Bates Marchs L.
Britts Ramon S.
Parker Kinetic Designs, Inc.
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