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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0841501 (2001-04-24) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 208 인용 특허 : 275 |
A coal formation may be treated using an in situ thermal process. Hydrocarbons, H 2 , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The portion may be allowed or
A coal formation may be treated using an in situ thermal process. Hydrocarbons, H 2 , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The portion may be allowed or forced to cool after mixture production is ended. Carbon dioxide may be stored within the portion.
1. A method of sequestering carbon dioxide within a coal formation, comprising:providing heat from one or more heaters positioned in heater wells to a portion of the formation to increase permeability of the portion such that the permeability of at least a part of the formation is substantially unif
1. A method of sequestering carbon dioxide within a coal formation, comprising:providing heat from one or more heaters positioned in heater wells to a portion of the formation to increase permeability of the portion such that the permeability of at least a part of the formation is substantially uniform;allowing the portion to cool;storing carbon dioxide within the portion;heating the portion to release at least some of the stored carbon dioxide; andremoving at least some of the released carbon dioxide from the portion. 2. The method of claim 1, wherein the permeability of the portion is increased to over 100 millidarcy. 3. The method of claim 1, further comprising raising a water level within the portion to inhibit migration of the carbon dioxide from the portion. 4. The method of claim 1, further comprising pyrolyzing at least some hydrocarbons in the portion during the providing of heat to the portion, and removing pyrolyzation product from the portion. 5. The method of claim 1, further comprising producing synthesis gas from the portion during the providing of heat to the portion, and removing synthesis gas from the formation. 6. The method of claim 1, wherein providing heat from one or more of the heaters to the portion comprises:providing heat from one or more of the heaters to hydrocarbon material adjacent to one or more wellbores to increase a temperature of the hydrocarbon material to a temperature sufficient to support oxidation of the hydrocarbon material with an oxidizing fluid;introducing the oxidizing fluid to hydrocarbon material adjacent to the one or more wellbores to oxidize hydrocarbons and produce heat; andallowing the produced heat to transfer to the portion. 7. The method of claim 6, wherein at least one of the one or more heaters comprises an electrical heater. 8. The method of claim 6, wherein the temperature sufficient to support oxidation is in a range between approximately 200° C. and approximately 1200° C. 9. The method of claim 1, wherein providing heat from one or more of the heaters to the portion comprises circulating heat transfer fluid through one or more heating wells in the formation. 10. The method of claim 9, wherein the heat transfer fluid comprises combustion products from a burner. 11. The method of claim 9, wherein the heat transfer fluid comprises steam. 12. The method of claim 1, further comprising removing fluid from the formation during the providing of heat to the portion, and combusting some of the removed fluid to generate heat to heat the formation. 13. The method of claim 1, wherein at least some of the stored carbon dioxide comprises carbon dioxide produced from a hydrocarbon bed demethanation process. 14. The method of claim 1, further comprising using some of the carbon dioxide for enhanced oil recovery prior to storing the carbon dioxide in the portion. 15. The method of claim 1, wherein at least some of the carbon dioxide comprises carbon dioxide generated in a fuel cell. 16. The method of claim 1, wherein at least some of the carbon dioxide comprises carbon dioxide formed as a combustion product. 17. The method of claim 1, further comprising allowing the portion to cool by introducing water to the portion; and removing at least some of the water from the formation as steam. 18. The method of claim 17, further comprising using at least some of the steam as a heat transfer fluid to heat a second portion of the formation. 19. The method of claim 1, wherein storing carbon dioxide in the portion comprises adsorbing carbon dioxide onto hydrocarbon material in the formation. 20. The method of claim 1, wherein storing carbon dioxide comprises passing a first fluid stream comprising the carbon dioxide and other fluid through the portion; adsorbing carbon dioxide onto carbon containing material within the formation; and removing a second fluid stream from the formation, wherein a concentration of the other fluid in the second fluid stream is greater than concentration of other fluid in the first stream due to the absence of the adsorbed carbon dioxide in the second stream. 21. The method of claim 1, wherein an amount of carbon dioxide stored in the portion is equal to or greater than an amount of carbon dioxide generated in the portion and removed from the formation during heating of the portion. 22. The method of claim 1, further comprising providing heat from three or more heaters sources to at least a section of the formation, wherein three or more of the heaters are located in the formation in a unit of heaters, and wherein the unit of heaters comprises a triangular pattern. 23. The method of claim 1, further comprising providing heat from three or more heaters to at least a section of the formation, wherein three or more of the heaters are located in the formation in a unit of heaters, wherein the unit of heaters comprises a triangular pattern, and wherein a plurality of the units are repeated over an area of the formation to form a repetitive pattern of units. 24. A method of sequestering a fluid in a coal formation, comprising:providing heat from one or more heaters positioned in heater wells to a portion of the formation to increase permeability of the portion such that the permeability of at least a part of the formation is substantially uniform;allowing the portion to cool;storing a fluid in the portion;heating the portion to release at least some of the stored fluid; andremoving at least some of the released fluid from the portion. 25. The method of claim 24, further comprising pyrolyzing at least some hydrocarbons in the portion during the providing of heat to the portion, and removing pyrolyzation product from the portion. 26. The method of claim 24, further comprising producing synthesis gas from the portion during the providing of heat to the portion, and removing synthesis gas from the formation. 27. The method of claim 24, wherein storing fluid in the portion comprises adsorbing fluid onto hydrocarbon material in the formation. 28. The method of claim 24, further comprising allowing the portion to cool by introducing water to the portion, removing at least some of the water from the formation as steam, and using at least some of the steam as a heat transfer fluid to heat a second portion of the formation. 29. A method of sequestering carbon dioxide in a coal formation, comprising:providing heat from one or more heaters positioned in heater wells to a portion of the formation to increase permeability of the portion such that the permeability of at least a part of the formation is substantially uniform;removing fluid from the formation during the providing of heat to the portion;combusting some of the removed fluid to generate heat to heat the formation;allowing the portion to cool to about 100° C. or less; andstoring carbon dioxide in the portion. 30. The method of claim 29, further comprising heating the portion to release at least some of the stored carbon dioxide, and removing some of the released carbon dioxide from the portion. 31. The method of claim 29, further comprising pyrolyzing at least some hydrocarbons in the portion during the providing of heat to the portion, and removing pyrolyzation product from the portion. 32. The method of claim 29, further comprising producing synthesis gas from the portion during the providing of heat to the portion, and removing synthesis gas from the formation. 33. The method of claim 29, wherein storing carbon dioxide in the portion comprises adsorbing carbon dioxide onto hydrocarbon material in the formation. 34. The method of claim 29, further comprising allowing the portion to cool by introducing water to the portion, removing at least some of the water from the formation as steam, and using at least some of the steam as a heat transfer fluid to heat a second portion of the formation.
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