The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2005
Filed:
Feb. 27, 2003
Simon J. Harrall, Inverurie, GB;
Paul D. Metcalfe, Peterculter, GB;
Robert P. Badrak, Sugar Land, TX (US);
Simon J. Harrall, Inverurie, GB;
Paul D. Metcalfe, Peterculter, GB;
Robert P. Badrak, Sugar Land, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
The present invention generally relates to methods of connecting two expandable tubulars. In one aspect, the method includes flash welding the ends of the expandable tubulars together. Thereafter, the connected tubulars are lowered into the wellbore for expansion. The flash welding process provides a highly reliable joint for expansion. In another aspect, the present invention provides a method for expanding a non-uniform tubular. In one embodiment, the non-uniform tubular is formed by connecting two misaligned tubulars.