Wells – Processes – Placing or shifting well part
Reexamination Certificate
2006-03-28
2006-03-28
Thompson, Kenneth (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S207000, C166S384000
Reexamination Certificate
active
07017669
ABSTRACT:
The present invention provides methods and apparatus for expanding a first, smaller diameter tubular into frictional contact with a second, larger diameter tubular or wellbore. In an embodiment, annular formations formed on an inner surface of a split ring engage an outer surface of the smaller tubular. In one aspect, the smaller diameter tubular is provided with an annular recess there around, the annular recess including recessed grooves formed there around. Therefore, the split ring is disposable within the annular recess and the annular formations formed on the split ring are constructed and arranged to fit within the recessed grooves of the annular recess of the tubular. An outer surface of the split ring is provided with teeth or some other grip-enhancing material or formation. The split ring also includes a split portion permitting the ring to expand in diameter as that portion of the tubular is expanded in diameter.
REFERENCES:
patent: 341327 (1886-05-01), Fay
patent: 2670797 (1954-03-01), Armentrout
patent: 2812025 (1957-11-01), Teague et al.
patent: 2864450 (1958-12-01), Burns
patent: 3627066 (1971-12-01), Johnson
patent: 4696606 (1987-09-01), Herron
patent: 5240076 (1993-08-01), Cromar et al.
patent: 5335736 (1994-08-01), Windsor
patent: 5803176 (1998-09-01), Blizzard, Jr. et al.
patent: 6513600 (2003-02-01), Ross
patent: 6564870 (2003-05-01), Grigsby et al.
patent: 6675901 (2004-01-01), Johnson et al.
patent: 6848510 (2005-02-01), Bixenman et al.
patent: 2001/0045289 (2001-11-01), Cook et al.
patent: 0 961 007 (1999-12-01), None
patent: WO 94/18429 (1994-08-01), None
patent: WO 00/37766 (2000-06-01), None
patent: WO 02/25059 (2002-03-01), None
PCT International Search Report, International Application No. PCT/GB 03/01895, dated Aug. 29, 2003.
Cameron Ian McDonald
Hillis David John
Johnston Gary
Patterson & Sheridan L.L.P.
Thompson Kenneth
Weatherford / Lamb, Inc.
LandOfFree
Methods and apparatus for expanding tubulars does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for expanding tubulars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for expanding tubulars will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3534995