Profile formation

Patent 6446323 Issued on September 10, 2002. Estimated Expiration Date:

December 22, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Weatherford/Lamb, Inc.

Application

No. 470176 filed on 12/22/1999

US Classes:

29/523, Radially expanding internal tube72/123Including roller having noncylindrical work-engaging surface

Examiners

Primary: Larson, Lowell A.

Attorney, Agent or Firm

Moser, Patterson & Sheridan, L.L.P.

Foreign Patent References

3213464 DE 10/20/1983
4133802 DE 10/20/1992
0 952 305 EP 04/20/1998
0 961 007 EP 12/20/1999
730338 GB 03/20/2013
792886 GB. 04/20/2013
997721 GB. 07/20/1965
1277461 GB 06/20/1972
1448304 GB 09/20/1976
1457843 GB 12/20/1976
1582392 GB 01/20/1981
2216926 GB 10/20/1989
2 313 860 GB 06/20/1996
2 320 734 GB 07/20/1998
2329918 GB 04/20/1999
WO 92/01139 WO 01/20/1992
WO 93/24728 WO 12/20/1993
WO 93/25800 WO 12/20/1993
WO 9425655 WO 11/20/1994
WO 97/21901 WO 06/20/1997
WO 98/00626 WO 01/20/1998
WO 99/02818 WO 01/20/1999
WO 99/18328 WO 04/20/1999
WO 99/23354 WO 05/20/1999

International Classes

B21D 039/04
B21D 039/10

Foreign Application Priority Data

1998-12-22 GB

Abstract

A method of forming a profile (10) in a section of tubing (12) comprises: providing an expander device (14) having at least one radially extendable expander member (22); positioning the device (14) at a predetermined location in the tubing (12); and extending the member (22) to deform the tubing (12) to create a profile (10).

Other References

Metcalfe, P.--"Expandable Slotted Tubes Offer Well Design Benefits", Petroleum Engineer International, vol. 69, No. 10 (Oct. 1996), pp. 60-63--XP000684479
U.S. patent application Ser. No. 09/554,677, Wayne Rudd, filed May 17, 2000
U.S. patent application Ser. No. 09/530,301, Metcalfe, filed Jun. 8, 2000
U.S. patent application Ser. No. 09/470,154, Metcalfe et al., filed Dec. 22, 1999
U.S. patent application Ser. No. 09/469,692, Trahan, filed Dec. 22, 1999
U.S. patent application Ser. No. 09/469,690, Abercrombie, filed Dec. 22, 1999
U.S. patent application Ser. No. 09/469,681, Metcalfe et al., filed Dec. 22, 1999
U.S. patent application Ser. No. 09/469,643, Metcalfe et al., filed Dec. 22, 1999
U.S. patent application Ser. No. 09/469,526, Metcalfe et al., filed Dec. 22, 1999
U.S. patent application Ser. No. 09/462,654, Metcalfe, filed Dec. 19, 2000
PCT International Search Report from PCT/GB99/04248, Dated Jun. 16, 2000
UK Search Report from GB 9930397.6 Dated Jun. 6, 200