Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate
2008-07-08
2010-11-16
Wright, Giovanna C (Department: 3672)
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
C166S055000, C166S085100, C166S377000
Reexamination Certificate
active
07832480
ABSTRACT:
A tubular extraction system for use in a plug and abandonment process and may include a structural mounting for adaptation to a well head, various mountings may be used to provide a structure for attaching actuators for griping the tubular string, indenting or crimping the tubular and shearing the tubular string. The system further use a fork supported on a lifting apparatus such as a top drive unit, draw works or portable crane, the fork is inserted within the mounting structure of the system to engage the crimped or indented portion of the tubular section being extracted and thus allow removal of sequentially sheared sections of the tubular string.
REFERENCES:
patent: 2919111 (1959-12-01), Nicolson
patent: 4043389 (1977-08-01), Cobb
patent: 4240503 (1980-12-01), Holt, Jr. et al.
patent: 4313496 (1982-02-01), Childs et al.
patent: 4646825 (1987-03-01), Van Winkle
patent: 4923005 (1990-05-01), Laky et al.
patent: 5219146 (1993-06-01), Thompson
patent: 5360061 (1994-11-01), Womble
patent: 6543546 (2003-04-01), Kaiser
patent: 6827145 (2004-12-01), Fotland et al.
patent: 6834721 (2004-12-01), Suro
patent: 7021381 (2006-04-01), Remedies et al.
patent: 7086467 (2006-08-01), Schlegelmilch et al.
patent: 7143626 (2006-12-01), Dole
patent: 7159838 (2007-01-01), Champagene et al.
patent: 2004/0003919 (2004-01-01), Johnson et al.
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