Drilling assembly and method for drilling a barehole into...

Details Drilling assembly and method for drilling a barehole into... Drilling assembly and method for drilling a barehole into...

2007-07-17

2007-07-17

Bagnell, David (Department: 3672)

Boring or penetrating the earth

Bit or bit element

With fluid conduit lining or element

C175S057000, C175S324000

Reexamination Certificate

active

11426210

ABSTRACT:
A drilling assembly for drilling a borehole into geological formations. The assembly comprises a drilling shaft and a pump device, both placable in the borehole. The drilling shaft comprises a drilling head, and the pump device comprises a sealing device for sealing a first borehole part below the sealing device from a second borehole part above the sealing device. The pump device is enabled to pump a fluid from the first borehole part to the second borehole part.

REFERENCES:
patent: 2946565 (1960-07-01), Williams
patent: 4137975 (1979-02-01), Pennock
patent: 4630691 (1986-12-01), Hooper
patent: 4744426 (1988-05-01), Reed
patent: 4898244 (1990-02-01), Schneider et al.
patent: 6209663 (2001-04-01), Hosie
patent: 6877571 (2005-04-01), Hughes et al.
patent: 6957698 (2005-10-01), Krueger et al.
patent: 2002/0170749 (2002-11-01), Hoye et al.
patent: 02/14649 (2002-02-01), None
International Search Reported dated Dec. 2, 2002.

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