Wells – Above ground apparatus – With assembly or disassembly means
Reexamination Certificate
2009-11-24
2011-11-01
Thompson, Kenneth L (Department: 3676)
Wells
Above ground apparatus
With assembly or disassembly means
C166S377000
Reexamination Certificate
active
08047277
ABSTRACT:
A method and apparatus for removing a string of casing from a well bore. The method and apparatus include a plurality of drill bits substantially aligned with each other for drilling a plurality of holes in the string of casing. The plurality of holes can be used to lift the string in casing from the well bore via a series of incremental casing sections.
REFERENCES:
patent: 2390420 (1945-12-01), Burke
patent: 2449429 (1948-09-01), Degrift
patent: 3266199 (1966-08-01), Bryson
patent: 3826585 (1974-07-01), Horton et al.
patent: 3847501 (1974-11-01), Doty
patent: 4146350 (1979-03-01), Bokelmann
patent: 4860413 (1989-08-01), Woodward
patent: 4902174 (1990-02-01), Thompson et al.
patent: 5025842 (1991-06-01), Brimhall
patent: 5893686 (1999-04-01), Weiler
patent: 6827145 (2004-12-01), Fotland et al.
patent: 7021381 (2006-04-01), Remedies et al.
patent: 7435041 (2008-10-01), McGill
patent: 7621321 (2009-11-01), Remedies et al.
patent: 2002/0076285 (2002-06-01), Tsune
Blanchard Richard
Cahill Kenneth J.
Deslatte Donald D.
Remedies Sandra
Rucker John
Garvey, Smith Nehrbass & North, L.L.C.
Hudson Services, Inc.
North Brett A.
Thompson Kenneth L
LandOfFree
Method and apparatus for removing casing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for removing casing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for removing casing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4305200