Welding shield for coupling heaters
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United States of America Patent
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Mar 9, 2010
Issued Date -
N/A
app pub date -
Apr 20, 2007
filing date -
Apr 21, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems for coupling end portions of two elongated heater portions and methods of using such systems to treat a subsurface formation are described herein. A system may include a holding system configured to hold end portions of the two elongated heater portions so that the end portions are abutted together or located near each other; a shield for enclosing the end portions, and one or more inert gas inlets configured to provide at least one inert gas to flush the system with inert gas during welding of the end portions. The shield may be configured to inhibit oxidation during welding that joins the end portions together. The shield may include a hinged door that, when closed, is configured to at least partially isolate the interior of the shield from the atmosphere. The hinged door, when open, is configured to allow access to the interior of the shield.
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Cited Art Landscape
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