Downhole turbine rotary drilling device

Details Downhole turbine rotary drilling device Downhole turbine rotary drilling device

1981-06-04

1984-03-06

Purser, Ernest R.

Boring or penetrating the earth

With below-ground tool drive prime mover

With above-ground means

175 71, 415502, E21B 402

Patent

active

044348622

ABSTRACT:
This invention relates to a downhole rotary drilling device. More particularly, it relates to a gas operated turbine motor designed to be located downhole adjacent a rotary drilling bit to impart rotational force to the drilling bit and thus accomplish subsurface drilling operations.

REFERENCES:
patent: 1790460 (1931-01-01), Capelivschnicoff
patent: 2783971 (1957-03-01), Carle et al.
patent: 3365170 (1968-01-01), Whittle
patent: 3754835 (1973-08-01), Ivanov et al.
patent: 3899033 (1975-08-01), Van Huisen
patent: 3938596 (1976-02-01), Ivanov et al.
patent: 4211291 (1980-07-01), Kellner

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