Temperature assessment using dielectric properties of an insulated conductor heater with selected electrical insulation
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United States of America Patent
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Jun 11, 2019
Grant Date -
Oct 9, 2014
app pub date -
Apr 2, 2014
filing date -
Apr 4, 2013
priority date (Note) -
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Abstract
A system for assessing one or more temperatures in an opening in a subsurface formation includes an electrical conductor and electrical insulation at least partially surrounding the electrical conductor. The electrical insulation includes magnesium oxide and a ferroelectric material. An electrically conductive sheath at least partially surrounds the electrical insulation. A profile of one or more dielectric properties of the electrical insulation along a length of the electrical insulation is assessed during use to assess a temperature profile with spatial resolution along the length of the electrical insulation.
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