CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT

United States of America Patent

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Issued Date
Jul 30, 2009
app pub date
Oct 13, 2008
filing date
Oct 19, 2007

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Abandoned

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Abstract

A method for assessing one or more temperatures of an electrically powered subsurface heater includes accessing an impedance profile of the electrically powered subsurface heater while the heater is being operated in the subsurface. The impedance profile is analyzed with a frequency domain algorithm to assess one or more temperatures of the heater.

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Patent Owner(s)

Patent Owner	Address
SHELL OIL COMPANY	P O BOX 2463 ONE SHELL PLAZA HOUSTON TX 77252-2463

International Classification(s)

G01R:MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC V....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Burns, David	Houston , US	67	1030
Sandberg, Chester Ledlie	Palo Alto , US	22	3670

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CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12250303

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