Rotary drilling systems

Details Rotary drilling systems Rotary drilling systems

1998-03-23

2000-07-25

Schoeppel, Roger

Boring or penetrating the earth

With tool shaft detail

Shaft carried guide or protector

175415, 175417, 279103, 403383, E21B 1710

Patent

active

060926120

ABSTRACT:
A rotary system having a sectional drill steel column connecting a drilling machine and rotary drill bit and being constructed and arranged to accommodate internal fluid flow to the drill bit without pressure loss, and which column employs a coupler section having both threaded and multi-faced ends for joining adjacent drill steel sections; and further having supplemental bore reamers adjacent to the drill bit to maintain design bore dimensions and accommodate fluid flow and removal of cuttings.

REFERENCES:
patent: 3554306 (1971-01-01), Wilburn
patent: 4099585 (1978-07-01), Emmerich
patent: 4165790 (1979-08-01), Emmerich
patent: 4190128 (1980-02-01), Emmerich
patent: 4515230 (1985-05-01), Means et al.
patent: 4549613 (1985-10-01), Case
patent: 4632195 (1986-12-01), Emmerich

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