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Arc guiding, gripping and sealing device for a magnetically impelled butt welding rig

Autoren:Thomas Hassel, Aret Varahram, Florian Baer, Sven Mitulla, Joerg Lehr, Ludger Leo Josef Overmeyer, Hans Lothar Wohlgemuth, Friedrich-Wilhelm Bach, Dominik Brouwer
Kategorie:Patentschriften
Jahr:2016
Veröffentlichung:US Patentnummer 9308600; Anmeldenummer 13/274,042

Abstract

A magnetically impelled arc butt (MIAB) welding device positioned on the rig floor heats facing ends of a pair of wellbore tubulars. After the facing ends are heated and/or melted, a force application device compressively engages the facing ends to form a welded joint. ... 2. The apparatus of claim 1 , further comprising a gripping device configured to position wellbore tubulars in the MIAB welding device and to center and align the facing ends of the wellbore tubulars. ... 3. The apparatus of claim 1 , further comprising a sealing device configured to isolate the end faces from at ...

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