Adjusting alloy compositions for selected properties in temperature limited heaters
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United States of America Patent
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Mar 23, 2010
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app pub date -
Apr 20, 2007
filing date -
Apr 21, 2006
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Abstract
Heaters for treating a subsurface formation are described herein. Such heaters can be obtained by using the systems and methods described herein. The heater includes a heater section including iron, cobalt, and carbon. The heater section has a Curie temperature less than a phase transformation temperature. The Curie temperature is at least 740° C. The heater section provides, when time varying current is applied to the heater section, an electrical resistance.
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