Apparatus for slant drilling

Details Apparatus for slant drilling Apparatus for slant drilling

2007-11-15

2008-12-30

Gay, Jennifer H (Department: 3676)

Boring or penetrating the earth

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

C173S185000, C414S022560

Reexamination Certificate

active

07469754

ABSTRACT:
A rig for drilling wells or holes at virtually any angle, from nearly horizontal to vertical, has a trailer mounted derrick which can be tilted to a desired angle, a top drive unit slidably mounted within such derrick and a hydraulic jacking apparatus. An automated pipe handling apparatus permits efficient transfer of pipe sections from the derrick to a truck, pipe rack or other storage facility.

REFERENCES:
patent: 3994350 (1976-11-01), Smith et al.
patent: 4951759 (1990-08-01), Richardson
patent: 5794723 (1998-08-01), Caneer et al.
patent: 6860337 (2005-03-01), Orr et al.

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