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Title: Temperature limited heater utilizing non-ferromagnetic conductor

Patent ·
OSTI ID:1068541
;

A heater is described. The heater includes a ferromagnetic conductor and an electrical conductor electrically coupled to the ferromagnetic conductor. The ferromagnetic conductor is positioned relative to the electrical conductor such that an electromagnetic field produced by time-varying current flow in the ferromagnetic conductor confines a majority of the flow of the electrical current to the electrical conductor at temperatures below or near a selected temperature.

Research Organization:
Shell Oil Company (Houston, TX)
Sponsoring Organization:
USDOE
DOE Contract Number:
ACO5-00OR22725
Assignee:
Shell Oil Company (Houston, TX)
Patent Number(s):
8,224,165
Application Number:
11/409,565
OSTI ID:
1068541
Country of Publication:
United States
Language:
English

References (9)

An Analog Computer for Studying Heat Transfer During a Thermal Recovery Process journal December 1955
The Characteristics of a Low Temperature In Situ Shale Oil conference April 2013
Evaluation of downhole electric impedance heating systems for paraffin control in oil wells journal January 1992
Analysis of oil shale and petroleum source rock pyrolysis by triple quadrupole mass spectrometry: comparisons of gas evolution at the heating rate of 10.degree.C/min journal May 1991
Electrical Heating With Horizontal Wells, The Heat Transfer Problem conference April 2013
Operating Laboratory Oil Shale Retorts In An In-Situ Mode conference April 2013
Kinetics of oil generation from Colorado oil shale journal June 1978
Direct Production of Low Pour Point High Gravity Shale Oil journal March 1967
Methods and Energy Sources for Heating Subsurface Geological Formation, Task 1: Heat Delivery Systems report January 2003

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