One-step directional coring or drilling system

Details One-step directional coring or drilling system One-step directional coring or drilling system

2008-01-22

2008-01-22

Neuder, William P (Department: 3672)

Boring or penetrating the earth

Processes

Boring curved or redirected bores

C175S082000, C166S117600

Reexamination Certificate

active

11470123

ABSTRACT:
An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. A sidetracking channel is formed in the guide element in alignment with an internal space, upstream of the expansible device in the direction of advance. A longitudinal cavity is formed in the guide element parallel to the longitudinal axis and arranged to allow passage from the internal space to the actuation means of the expansible device. Within the internal space of the guide element, an external tube of the core barrel includes a core bit fixed to the front end of the external tube and arranged to slide, after having been released, in the internal space and in the sidetracking channel and then progress to the formation.

REFERENCES:
patent: 3123160 (1964-03-01), Kammerer
patent: 5163522 (1992-11-01), Eaton et al.
patent: 5568838 (1996-10-01), Struthers et al.
patent: 6050334 (2000-04-01), McGarian et al.
patent: 6209636 (2001-04-01), Roberts et al.
patent: 7117958 (2006-10-01), Fanuel et al.
patent: 1011199 (1999-06-01), None
patent: 1011414 (1999-09-01), None
patent: 0514657 (1992-04-01), None
patent: WO9703274 (1997-01-01), None
patent: WO 2004/029401 (2004-04-01), None
International Search Report from PCT/BE03/00161, (3 pp.).
International Preliminary Examination Report from PCT/BE03/00161, (3 pp.).

Affiliated with

Also associated with

Rating

One-step directional coring or drilling system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with One-step directional coring or drilling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One-step directional coring or drilling system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3946337