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:
Sep. 20, 2016
Filed:
Oct. 14, 2011
Thomas Hassel, Hannover, DE;
Aret Varahram, Hannover, DE;
Detlev Benedict, Niehhagen, DE;
Joerg Lehr, Celle Lower Saxony, DE;
Friedrich Wilhelm Bach, Isemhagen, DE;
Thomas Hassel, Hannover, DE;
Aret Varahram, Hannover, DE;
Detlev Benedict, Niehhagen, DE;
Joerg Lehr, Celle Lower Saxony, DE;
Friedrich Wilhelm Bach, Isemhagen, DE;
BAKER HUGHES INCORPORATED, Houston, TX (US);
Abstract
A magnetically impelled arc butt (MIAB) welding device heats facing ends of a pair of wellbore tubulars and a force application device compressively engages the facing ends to form a welded joint. The device may be positioned on the rig floor. The MIAB welding device may include a device configured to hold facing ends of the two wellbore tubulars at a specified distance away from one another, a high frequency arc ignition device configured to generate an arc between the facing ends and to revolve the arc around the circumference of the facing ends, and a magnetic field generator configured to superimpose a magnetic field at the facing ends. The MIAB welding device may be configured to melt at least a surface of the facing ends.