Method and apparatus for drilling generally horizontal bores

Details Method and apparatus for drilling generally horizontal bores Method and apparatus for drilling generally horizontal bores

1983-05-24

1984-10-02

Leppink, James A.

Boring or penetrating the earth

Processes

Boring with specific fluid

175205, E21B 2114

Patent

active

044742525

ABSTRACT:
Means are provided to drill generally horizontal bores through heterogeneous fill and hard strata. A carriage providing power means to rotate a spindle is mounted on a generally horizontal track and is adapted to move longitudinally along the track. Swivel means about the spindle are provided with means to introduce a combined gas and liquid stream, suitably air and water, into a drill pipe connected to the spindle and through an impact drill mounted at the end of the drill pipe to power the drill and to flush cuttings from the hole.

REFERENCES:
patent: 1087706 (1914-02-01), Bade
patent: 3107738 (1963-10-01), Osborn
patent: 3369617 (1968-02-01), Brack et al.
patent: 3640350 (1972-06-01), Stenuick
patent: 3674100 (1972-06-01), Becker
patent: 3736994 (1973-06-01), Vida et al.

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