Method and device for deviated coring and/or drilling

Details Method and device for deviated coring and/or drilling Method and device for deviated coring and/or drilling

2006-04-04

2006-04-04

Walker, Zakiya (Department: 3676)

Boring or penetrating the earth

Processes

Boring curved or redirected bores

C166S298000, C175S244000, C175S387000, C175S403000

Reexamination Certificate

active

07021404

ABSTRACT:
The invention concerns a method and a device for coring and/or drilling through a wall of a bore hole, to deflect transversely from a longitudinal direction of the hole, further comprising selecting a core barrel (1) equipped with a core bit (3) having an inner gauge bore (5), an arrangement, in the core barrel (1), of an abrasion resistant internal guide (7), which is internal at least with respect to the bore (5) so that the bit (3) can move along guide (7), and is designed to deflect the bit (3) along a desired deflected path, start-up of the coring process with bit (3) and guiding the bit (3) through co-operation between its bore (5) and the guide (7).

REFERENCES:
patent: 5029653 (1991-07-01), Jurgens et al.
patent: 5148875 (1992-09-01), Karlsson et al.
patent: 6202752 (2001-03-01), Kuck et al.
patent: 575.685 (1946-02-01), None
patent: 90/00666 (1990-01-01), None
patent: 98/04804 (1998-02-01), None
patent: 03/080987 (2003-10-01), None
PCT International Preliminary Examination Report for International Application No. PCT/BE03/00054, 4 pages, Mar. 3, 2004.
PCT International Search Report for International Application No. PCT/BE03/00054, 4 pages, Jun. 13, 2003.

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