Pressure seal for pumping instruments through drill rod

Details Pressure seal for pumping instruments through drill rod Pressure seal for pumping instruments through drill rod

1979-09-28

1981-10-20

Pate, III, William F.

Boring or penetrating the earth

With above-ground means for handling drilling fluid or cutting

Fluid head on tool shaft having lateral port and axial...

285 9R, 285155, 285373, E21B 4712

Patent

active

042955360

ABSTRACT:
A device for placement between a rotary drill motor and a drill rod for use in pumping instruments down the drill rod. The device has pressure seals at each end and an opening for an instrument cable which slides through the opening as the instruments are pumped down the drill rod.

REFERENCES:
patent: 1646639 (1927-10-01), Crowell
patent: 1964123 (1934-06-01), Kaiser
patent: 3602304 (1971-08-01), Mallinger
patent: 3954288 (1976-05-01), Smith
patent: 4143721 (1979-03-01), Zuvela et al.
patent: 4180092 (1979-12-01), Hunter

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