Unit for borehole running and pulling operations

Details Unit for borehole running and pulling operations Unit for borehole running and pulling operations

1988-08-11

1990-02-20

Massie, IV, Jerome W.

Boring or penetrating the earth

With orienting or racking means for unconnected tools or...

175 52, 175170, 414 2251, E21B 1920

Patent

active

049018051

ABSTRACT:
The unit for borehole running and pulling operations with drill pipes or rods has its centralizer mounted for vertical reciprocation along guides and horizontal displacement along guideways in the opening of the racking platform in its cooperation with the traveling block. The guides for vertical reciprocation of the centralizer are rigid and provided with stops, and each guideway for horizontal displacement of the centralizer is in the form of either a plate with a slot, or a beam mounted for its introduction into and withdrawal from the opening of the racking platform.

REFERENCES:
patent: 2946464 (1960-07-01), Guier
patent: 3929235 (1975-12-01), Howard et al.
patent: 4591006 (1986-05-01), Hutchison et al.

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