Method and apparatus for drilling horizontal holes in geological

Details Method and apparatus for drilling horizontal holes in geological Method and apparatus for drilling horizontal holes in geological

1980-02-26

1982-03-02

Pate, III, William F.

Boring or penetrating the earth

Tool shaft advanced relative to guide insertable in...

175 61, 175 62, 175 94, 175257, 175320, E21B 400

Patent

active

043174922

ABSTRACT:
This invention is directed to a method and apparatus for drilling horizontal holes in geological strata from a vertical position. The geological structures intended to be penetrated in this fashion are coal seams, as for in situ gasification or methane drainage, or in oil-bearing strata for increasing the flow rate from a pre-existing well. Other possible uses for this device might be for use in the leaching of uranium ore from underground deposits or for introducing horizontal channels for water and steam injections.

REFERENCES:
patent: 1660999 (1928-02-01), Macdonell
patent: 2147214 (1939-02-01), Perebaskine et al.
patent: 2251308 (1941-08-01), Washington
patent: 4193635 (1980-03-01), Thiruvengadam

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