| 发明名称 |
TEMPERATURE LIMITED HEATERS USED TO HEAT SUBSURFACE FORMATIONS |
| 摘要 |
<p>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.</p> |
| 申请公布号 |
WO2005106196(A1) |
申请公布日期 |
2005.11.10 |
| 申请号 |
WO2005US13923 |
申请日期 |
2005.04.22 |
| 申请人 |
SHELL OIL COMPANY;HARRIS, CHRISTOPHER KELVIN;SANDBERG, CHESTER LEDLIE;VINEGAR, HAROLD J. |
发明人 |
HARRIS, CHRISTOPHER KELVIN;SANDBERG, CHESTER LEDLIE;VINEGAR, HAROLD J. |
| 分类号 |
E21B29/00;E21B36/04;E21B43/00;E21B43/12;E21B43/24;E21B43/30;E21B43/38;H05B3/10;H05B3/14;H05B6/10;(IPC1-7):E21B43/24 |
主分类号 |
E21B29/00 |
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