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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | UP-0584805 (2006-10-20) |
| 등록번호 | US-7556096 (2009-07-15) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 169 인용 특허 : 589 |
A method for treating an oil shale formation comprising dawsonite includes assessing a dawsonite composition of one or more zones in the formation. Heat from one or more heaters is provided to the formation such that different amounts of heat are provided to zones with different dawsonite compositio
A method for treating an oil shale formation comprising dawsonite includes assessing a dawsonite composition of one or more zones in the formation. Heat from one or more heaters is provided to the formation such that different amounts of heat are provided to zones with different dawsonite compositions. The provided heat is allowed to transfer from the heaters to the formation. Fluids are produced from the formation.
What is claimed is: 1. A method for treating an oil shale formation comprising dawsonite, the method comprising: assessing a dawsonite composition of one or more zones in the formation; providing heat from one or more heaters to the formation such that different amounts of heat are provided to zone
What is claimed is: 1. A method for treating an oil shale formation comprising dawsonite, the method comprising: assessing a dawsonite composition of one or more zones in the formation; providing heat from one or more heaters to the formation such that different amounts of heat are provided to zones with different dawsonite compositions; allowing the provided heat to transfer from the heaters to the formation; and producing fluids from the formation. 2. The method of claim 1, further comprising providing more heat from heaters in or proximate zones with more dawsonite than from heaters in or proximate zones with less dawsonite. 3. The method of claim 1, further comprising providing more heat from heaters in or proximate zones with dawsonite than from heaters in or proximate zones with little or no dawsonite. 4. The method of claim 1, further comprising adjusting the heat output along a length of one or more heaters to provide the different amounts of heat. 5. The method of claim 1, wherein at least one heater is a temperature limited heater, the method further comprising varying the Curie temperature of the temperature limited heater along a length of the heater to provide different amounts of heat. 6. The method of claim 1, further comprising coring the formation to obtain a sample of the formation for assessment of the dawsonite composition. 7. The method of claim 1, further comprising: providing a first fluid to a portion of the formation comprising nahcolite; and producing a second fluid from the portion, the second fluid including at least some nahcolite dissolved in the first fluid. 8. The method of claim 1, further comprising: providing a chelating agent to the formation to dissolve at least some dawsonite decomposition products in the formation; and producing the dissolved dawsonite decomposition products. 9. The method of claim 8, wherein the dissolved decomposition products comprise alumina. 10. The method of claim 8, wherein the chelating agent is an aqueous acid. 11. The method of claim 8, wherein the chelating agent is EDTA. 12. The method of claim 8, further comprising separating the chelating agent from the dissolved decomposition products in a treatment facility. 13. The method of claim 8, further comprising: providing a relatively basic fluid to the formation to dissolve at least some dawsonite decomposition products; and producing the dissolved dawsonite decomposition products. 14. The method of claim 8, further comprising producing aluminum metal from the dissolved decomposition products in a process that utilizes electricity that has been generated using hydrocarbons produced from the formation. 15. A method for producing aluminum, the method comprising: assessing a dawsonite composition of one or more zones in the formation; providing heat from one or more heaters to the formation such that different amounts of heat are provided to zones with different dawsonite compositions; allowing the provided heat to transfer from the heaters to the formation; producing hydrocarbons from the formation; decomposing at least some dawsonite in the formation with the provided heat; providing a chelating agent to the formation to dissolve at least some dawsonite decomposition products; producing the dissolved dawsonite decomposition products from the formation; separating alumina from the dissolved dawsonite decomposition products; using some of the produced hydrocarbon fluids to produce electricity; and producing aluminum metal from the alumina in an electrolytic recovery process using the produced electricity as power for the electrolytic recovery process. 16. The method of claim 15, further comprising providing more heat from heaters in or proximate zones with more dawsonite than from heaters in or proximate zones with less dawsonite. 17. The method of claim 15, further comprising providing more heat from heaters in or proximate zones with dawsonite than from heaters in or proximate zones with little or no dawsonite. 18. The method of claim 15, further comprising adjusting the heat output along a length of one or more heaters to provide the different amounts of heat. 19. The method of claim 15, further comprising coring the formation to obtain a sample of the formation for assessment of the dawsonite composition. 20. The method of claim 15, further comprising: providing a first fluid to a portion of the formation comprising naheolite; and producing a second fluid from the portion, the second fluid including at least some nahcolite dissolved in the first fluid.
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