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:
Feb. 27, 2007
Filed:
Jul. 17, 2003
Mark Wilson Anderson, Rijswijk, NL;
Johannis Josephus Den Boer, Rijswijk, NL;
Anthony Thomas Cole, Rijswijk, NL;
Klisthenis Dimitriadis, Rijswijk, NL;
Jan Erik Vollebregt, Rijswijk, NL;
Djurre Hans Zijsling, Rijswijk, NL;
Mark Wilson Anderson, Rijswijk, NL;
Johannis Josephus Den Boer, Rijswijk, NL;
Anthony Thomas Cole, Rijswijk, NL;
Klisthenis Dimitriadis, Rijswijk, NL;
Jan Erik Vollebregt, Rijswijk, NL;
Djurre Hans Zijsling, Rijswijk, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A method of joining expandable tubulars includes joining the tubulars by forge welding and flushing a reducing flushing gas around the heated tubular ends during at least part of the forge welding operation such that oxides are removed from the forge welded tubular ends and the amount of irregularities between the forge welded tubular ends is limited.