최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0960355 (2013-08-06) |
등록번호 | US-8859942 (2014-10-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 380 |
An insulated conductor heater may include an electrical conductor that produces heat when an electrical current is provided to the electrical conductor. An electrical insulator at least partially surrounds the electrical conductor. The electrical insulator comprises a resistivity that remains substa
An insulated conductor heater may include an electrical conductor that produces heat when an electrical current is provided to the electrical conductor. An electrical insulator at least partially surrounds the electrical conductor. The electrical insulator comprises a resistivity that remains substantially constant, or increases, over time when the electrical conductor produces heat. An outer electrical conductor at least partially surrounds the electrical insulator.
1. An insulated conductor heater, comprising: an elongated electrical conductor configured to produce heat when an electrical current is provided to the electrical conductor;an elongated electrical insulator at least partially surrounding the electrical conductor, wherein the electrical insulator co
1. An insulated conductor heater, comprising: an elongated electrical conductor configured to produce heat when an electrical current is provided to the electrical conductor;an elongated electrical insulator at least partially surrounding the electrical conductor, wherein the electrical insulator comprises a plurality of blocks of electrical insulation horizontally displaced along a substantial length of the electrical conductor; andan outer electrical conductor at least partially surrounding the electrical insulator. 2. The heater of claim 1, wherein the plurality of blocks of electrical insulation are horizontally displaced with little or no gap between the blocks along the length of the electrical conductor. 3. The heater of claim 1, wherein at least two of the plurality of blocks of electrical insulation have been compressed against each other with a selected amount of force. 4. The heater of claim 1, wherein the blocks of electrical insulation comprises partially cylindrical portions of electrical insulation. 5. The heater of claim 1, wherein the blocks of electrical insulation comprise purified magnesium oxide blocks. 6. The heater of claim 1, wherein the blocks of electrical insulation are formed from powdered magnesium oxide. 7. The heater of claim 1, wherein the heater is configured to be located in an opening in a subsurface formation. 8. The heater of claim 1, wherein the heater is configured to be located in an opening in a subsurface formation, and the heater is configured to provide heat to at least a portion of the subsurface formation. 9. An insulated conductor heater, comprising: an elongated electrical conductor configured to produce heat when an electrical current is provided to the electrical conductor;a plurality of partially cylindrical portions of electrical insulation placed together along a substantial length of the electrical conductor to form an elongated electrical insulator at least partially surrounding the electrical conductor, wherein at least two partially cylindrical portions are positioned side-by-side along a portion of the electrical conductor, and wherein at least two partially cylindrical portions are horizontally displaced along the length of the electrical conductor; andan outer electrical conductor at least partially surrounding the electrical insulator. 10. The heater of claim 9, wherein at least two of the partially cylindrical portions of electrical insulation have been compressed against each other with a selected amount of force. 11. The heater of claim 9, wherein at least two of the partially cylindrical portions are horizontally displaced with little or no gap between the portions along the length of the electrical conductor. 12. The heater of claim 9, wherein the partially cylindrical portions of electrical insulation comprise purified magnesium oxide blocks. 13. The heater of claim 9, wherein the partially cylindrical portions of electrical insulation are formed from powdered magnesium oxide. 14. The heater of claim 9, wherein the heater is configured to be located in an opening in a subsurface formation. 15. The heater of claim 9, wherein the heater is configured to be located in an opening in a subsurface formation, and the heater is configured to provide heat to at least a portion of the subsurface formation. 16. An insulated conductor heater, comprising: an elongated electrical conductor configured to produce heat when an electrical current is provided to the electrical conductor;a plurality of blocks of electrical insulation horizontally displaced along a substantial length of the electrical conductor to form an elongated electrical insulator at least partially surrounding the electrical conductor, wherein at least two of the plurality of blocks of electrical insulation have been compressed against each other with a selected amount of force; andan outer electrical conductor at least partially surrounding the electrical insulator. 17. The heater of claim 16, wherein at least two of the plurality of blocks of electrical insulation are compressed against each other such that there is little or no gap between the blocks. 18. The heater of claim 1, wherein the blocks of electrical insulation comprise purified magnesium oxide blocks. 19. The heater of claim 1, wherein the heater is configured to be located in an opening in a subsurface formation. 20. The heater of claim 1, wherein the heater is configured to be located in an opening in a subsurface formation, and the heater is configured to provide heat to at least a portion of the subsurface formation.
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