发明名称 |
Temperature limited heaters used to heat subsurface formations |
摘要 |
Certain embodiments provide a heater. A heater device includes a skin effect component having at least one insulated electrical core conductor in electrical communication with an adjacent and substantially parallel, elongated ferromagnetic shape having a reduction and localization of the depth and width of the effective conductor path in the cross-section of the ferromagnetic wall; and, an inorganic ceramic insulation component. |
申请公布号 |
ZA200608260(B) |
申请公布日期 |
2007.12.27 |
申请号 |
ZA20060008260 |
申请日期 |
2006.10.04 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
HARRIS, CHRISTOPHER KELVIN;SANDBERG, CHESTER LEDLIE;VINEGAR, HAROLD J. |
分类号 |
E21B;E21B29/00;E21B36/04;E21B43/00;E21B43/12;E21B43/24;E21B43/30;E21B43/38;H05B;H05B3/10;H05B3/14;H05B6/10 |
主分类号 |
E21B |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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