Invention Application
WO2005106196A1 TEMPERATURE LIMITED HEATERS USED TO HEAT SUBSURFACE FORMATIONS
审中-公开
TEMPERATURE有限公司用于加热表面形成的加热器
- Patent Title: TEMPERATURE LIMITED HEATERS USED TO HEAT SUBSURFACE FORMATIONS
- Patent Title (中): TEMPERATURE有限公司用于加热表面形成的加热器
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Application No.: PCT/US2005/013923Application Date: 2005-04-22
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Publication No.: WO2005106196A1Publication Date: 2005-11-10
- Inventor: HARRIS, Christopher Kelvin , SANDBERG, Chester Ledlie , VINEGAR, Harold J.
- Applicant: SHELL OIL COMPANY , HARRIS, Christopher Kelvin , SANDBERG, Chester Ledlie , VINEGAR, Harold J.
- Applicant Address: Department of Intellectual Property, One Shell Plaza, P.O. Box 2463, Houston, Texas 77252-2463 US
- Assignee: SHELL OIL COMPANY,HARRIS, Christopher Kelvin,SANDBERG, Chester Ledlie,VINEGAR, Harold J.
- Current Assignee: SHELL OIL COMPANY,HARRIS, Christopher Kelvin,SANDBERG, Chester Ledlie,VINEGAR, Harold J.
- Current Assignee Address: Department of Intellectual Property, One Shell Plaza, P.O. Box 2463, Houston, Texas 77252-2463 US
- Agency: CHRISTENSEN, Del S.
- Priority: US60/565,077 20040423
- Main IPC: E21B43/24
- IPC: E21B43/24
Abstract:
The invention provides a heater, comprising: a ferromagnetic member; an electrical conductor electrically coupled to the ferromagnetic member, wherein the electrical conductor is configured to provide heat output below the Curie temperature of the ferromagnetic member. The electrical conductor is configured to conduct a majority of the electrical current of the heater at 25 °C. The heater automatically provides a reduced amount of heat approximately at and above the Curie temperature of the ferromagnetic member.
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