Arc guiding, gripping and sealing device for a magnetically impelled butt welding rig
AssigneeBaker Hughes Incorporated
InventorsThomas Hassel, Aret Varahram, Florian Baer, Sven Mitulla, Joerg Lehr, Ludger Leo Josef Overmeyer, Hans Lothar Wohlgemuth, Friedrich-Wilhelm Bach, Dominik Brouwer
Life of this patent
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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.
Claims20
An apparatus for connecting wellbore tubulars at a rig floor, comprising:
- a magnetically impelled arc butt (MIAB) welding device positioned on the rig floor and configured to heat facing ends of a pair of wellbore tubulars;
- and
- a force application device configured to compressively engage the facing ends to form a welded joint.
A method for connecting wellbore tubulars at a rig floor, comprising:
- positioning a magnetically impelled arc butt (MIAB) welding device on a rig floor;
- heating facing ends of a pair of wellbore tubulars using an arc generated by the MIAB welding device;
- and
- compressively engaging the facing ends to form a welded joint.
An apparatus for connecting wellbore tubulars at a rig floor, comprising:
- a magnetically impelled arc butt (MIAB) welding device positioned on the rig floor and configured to heat facing ends of a pair of wellbore tubulars;
- a feed device configured to engage a wellbore tubular and position the wellbore tubular in the MIAB welding device;
- and
- a force application device configured to compressively engage the facing ends to form a welded joint.
Dependencies are inferred from the claim text.