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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0644422 (2012-10-04) |
등록번호 | US-9080409 (2015-07-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 385 |
A method includes coupling a core of a heating section to a core of an overburden section of an insulated conductor. A diameter of the core of the heating section is less than a diameter of the core of the overburden section. A first insulation layer is placed over the core of the heating section su
A method includes coupling a core of a heating section to a core of an overburden section of an insulated conductor. A diameter of the core of the heating section is less than a diameter of the core of the overburden section. A first insulation layer is placed over the core of the heating section such that at least part of an end portion of the core of the heating section is exposed. A second insulation layer is placed over the core of the overburden section such that the second insulation layer extends over the exposed portion of the core of the heating section. A thickness of the second insulation layer is less than a thickness of the first insulation layer and an outer diameter of the overburden section is substantially the same as an outer diameter of the heating section.
1. A method for coupling a heating section and an overburden section of an insulated conductor heater, comprising: coupling a core of the heating section to a core of the overburden section, wherein a diameter of the core of the heating section is less than a diameter of the core of the overburden s
1. A method for coupling a heating section and an overburden section of an insulated conductor heater, comprising: coupling a core of the heating section to a core of the overburden section, wherein a diameter of the core of the heating section is less than a diameter of the core of the overburden section;placing a first insulation layer comprising one or more blocks of insulation over the core of the heating section, wherein at least part of an end portion of the core of the heating section is exposed beyond an end of the blocks comprising the first insulation layer;placing a second insulation layer comprising one or more blocks of insulation over the core of the overburden section, wherein at least one block at an end of the second insulation layer extends over the exposed portion of the core of the heating section with a gap between the at least one block and the exposed portion of the core, and wherein a thickness of the second insulation layer is less than a thickness of the first insulation layer and an outer diameter of the overburden section is substantially the same as an outer diameter of the heating section; andplacing an outer electrical conductor around the heating section and the overburden section. 2. The method of claim 1, further comprising compacting the insulated conductor to reduce a cross-sectional area of the outer electrical conductor and compact the first insulation layer and the second insulation layer inside the outer electrical conductor. 3. The method of claim 2, wherein compaction of the second insulation layer fills the gap between the at least one block and the exposed portion of the core of the heating section. 4. The method of claim 1, wherein the core of the heating section comprises copper and nickel. 5. The method of claim 1, wherein the core of the overburden section comprises copper. 6. The method of claim 1, wherein the first insulation layer comprises magnesium oxide. 7. The method of claim 1, wherein the second insulation layer comprises magnesium oxide. 8. The method of claim 1, wherein the outer electrical conductor is placed around the heating section and the overburden section after the first insulation layer and the second insulation layer are placed over the cores of the heating section and the overburden section. 9. The method of claim 1, wherein the outer electrical conductor comprises a continuous outer electrical conductor between the heating section and the overburden section. 10. A method for coupling a heating section and an overburden section of an insulated conductor heater, comprising: coupling a core of the heating section to a core of a first transition section, wherein a diameter of the first transition section core is substantially the same as a diameter of the heating section core;coupling the first transition section core to a core of a second transition section, wherein a diameter of the second transition section core tapers from substantially the same diameter as the first transition section core at the coupling between the first transition section core and the second transition section core to a larger diameter along a length of the second transition section core;coupling the second transition section core to a core of the overburden section, wherein a diameter of the overburden section core is substantially the same as the larger diameter of the second transition section core;placing a first insulation layer over the heating section core and at least part of the first transition section core;placing a second insulation layer over the overburden section core and at least part of the second transition section core, wherein a thickness of the second insulation layer is less than a thickness of the first insulation layer; andplacing an outer electrical conductor around the first insulation layer and the second insulation layer, wherein outer diameters of the heating section, the first transition section, the second transition section, and the overburden section are substantially the same along a length of the insulated conductor heater. 11. The method of claim 10, further comprising compacting the insulated conductor to reduce a cross-sectional area of the outer electrical conductor and compact the first insulation layer and the second insulation layer inside the outer electrical conductor. 12. The method of claim 11, wherein compaction of the second insulation layer fills a gap between the second insulation layer and the second transition section core. 13. The method of claim 10, wherein the first transition section core, the second transition section core, and the overburden section core comprise substantially the same material. 14. The method of claim 13, wherein the heating section core comprises a different material than the first transition section core, the second transition section core, or the overburden section core. 15. The method of claim 10, wherein the heating section core comprises copper and nickel. 16. The method of claim 10, wherein the overburden section core comprises copper. 17. The method of claim 10, wherein the first transition section core comprises copper. 18. The method of claim 10, wherein the second transition section core comprises copper. 19. The method of claim 10, wherein the first insulation layer and the second insulation layer comprise magnesium oxide. 20. A coupling between a heating section and an overburden section of an insulated conductor heater, comprising: a first transition section comprising a core with a diameter substantially the same as a diameter of a core of the heating section;a second transition section comprising a core coupled to the first transition section core, wherein a diameter of the second transition section core tapers from substantially the same diameter as the first transition section core at the coupling between the first transition section core and the second transition section core to a larger diameter along a length of the second transition section core, and wherein a diameter of the overburden section core is substantially the same as the larger diameter of the second transition section core;a first insulation layer placed over the heating section core and at least part of the first transition section core;a second insulation layer placed over the overburden section core and at least part of the second transition section core, wherein a thickness of the second insulation layer is less than a thickness of the first insulation layer; andan outer electrical conductor placed around the first insulation layer and the second insulation layer, wherein outer diameters of the heating section, the first transition section, the second transition section, and the overburden section are substantially the same along a length of the insulated conductor heater. 21. The coupling of claim 20, wherein the first insulation layer at least partially overlaps the first transition section core. 22. The coupling of claim 20, wherein the first transition section core, the second transition section core, and the overburden section core comprise substantially the same material. 23. The coupling of claim 22, wherein the heating section core comprises a different material than the first transition section core, the second transition section core, or the overburden section core. 24. The coupling of claim 20, wherein the heating section core comprises copper and nickel. 25. The coupling of claim 20, wherein the overburden section core comprises copper. 26. The coupling of claim 20, wherein the first transition section core comprises copper. 27. The coupling of claim 20, wherein the second transition section core comprises copper. 28. The coupling of claim 20, wherein the first insulation layer and the second insulation layer comprise magnesium oxide. 29. The coupling of claim 20, wherein the outer electrical conductor comprises stainless steel.
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