Device for containing and removing drilling slurry

Details Device for containing and removing drilling slurry Device for containing and removing drilling slurry

1982-09-29

1984-09-18

Purser, Ernest R.

Boring or penetrating the earth

With above-ground means for handling drilling fluid or cutting

Fluid or cuttings directing or receiving means engaging bore...

173 32, E21B 1200

Patent

active

044718446

ABSTRACT:
A device for containing and removing drilling slurry includes a pair of concentric, annular, parallel side walls joined at like edges to an annular end wall to form an annular cavity therein. The opposed edges of the side walls are provided with annular sealing gaskets, the gasket on the inner wall being provided with radially extending intake slots. A vacuum fitting extends through the outer side wall to partially evacuate the cavity and to cause the device to adhere to a floor or wall surface. The end wall includes a central opening therethrough to receive a drilling bit or the like, the opening being slightly eccentric with respect to the axis and defining a shallow recess which retains liquid slurry. A pair of drain holes extend through the inner side wall at the shallow recess to remove accumulated slurry.

REFERENCES:
patent: 2646256 (1953-07-01), Lobbert
patent: 3033298 (1962-05-01), Johnson
patent: 3045769 (1962-07-01), Feucht
patent: 3498674 (1970-03-01), Matthews

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