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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0106026 (2008-04-18) |
등록번호 | US-7841408 (2011-01-31) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 106 인용 특허 : 705 |
A method for treating a tar sands formation is disclosed. The method includes providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer. At least some of the mobilized hydrocarbons are allowed to flow into a second hydr
A method for treating a tar sands formation is disclosed. The method includes providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer. At least some of the mobilized hydrocarbons are allowed to flow into a second hydrocarbon containing layer of the formation. Heat is provided to the second layer from one or more heaters located in the second layer. At least some hydrocarbons are produced from the second layer of the formation.
What is claimed is: 1. A method for treating a tar sands formation, comprising: providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer; allowing at least some of the mobilized hydrocarbons to flow into a second hydr
What is claimed is: 1. A method for treating a tar sands formation, comprising: providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer; allowing at least some of the mobilized hydrocarbons to flow into a second hydrocarbon containing layer of the formation; providing heat to the second layer from one or more heaters located in the second layer, wherein at least at of at least one of the heaters positioned substantially horizontally in the second layer; and producing at least some hydrocarbons from the second layer of the formation. 2. The method of claim 1, further comprising providing additional drive fluid to a third hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the third layer. 3. The method of claim 1, further comprising providing additional drive fluid to a third hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the third layer, and allowing at least some of the mobilized hydrocarbons from the third layer to flow into the second layer. 4. The method of claim 1, wherein the first layer is above the second layer. 5. The method of claim 1, wherein the first layer is below the second layer. 6. The method of claim 1, wherein the first layer has a lower initial oil saturation than the second layer. 7. The method of claim 1, wherein the first layer has a higher initial water saturation than the second layer. 8. The method of claim 1, wherein the first layer has a lower initial porosity than the second layer. 9. The method of claim 1, wherein the first layer has a higher initial steam injectivity than the second layer. 10. The method of claim 1, further comprising increasing a steam injectivity of the second layer with the heat provided by the one or more heaters. 11. The method of claim 1, further comprising providing the drive fluid to the second layer after increasing a steam injectivity of the second layer with the heat provided by the one or more heaters. 12. The method of claim 1, further comprising producing hydrocarbons from the first layer. 13. The method of claim 1, further comprising using the produced hydrocarbons in a steam and electricity generation facility, wherein the facility provides steam as the drive fluid to the first layer of the formation, and electricity for at least some of the heaters in the second layer. 14. The method of claim 1, wherein the first layer and the second layer are separated by a substantially impermeable shale layer that inhibits the flow of hydrocarbons between the first and second layers. 15. The method of claim 14, further comprising increasing the permeability of the shale layer with the heat provided to the second layer such that hydrocarbons are allowed to flow between the first and second layers. 16. The method of claim 1, further comprising maintaining a pressure in the formation below a selected pressure. 17. The method of claim 16, wherein the selected pressure is the fracture pressure of the formation. 18. The method of claim 17, wherein the selected pressure is between about 1000 kPa and about 15000 kPa. 19. The method of claim 16, wherein the selected pressure is a pressure below which substantial hydrocarbon coking in the formation occurs when the average temperature in the formation is less than 300° C. 20. The method of claim 19, wherein the selected pressure is between about 100 kPa and about 1000 kPa. 21. The method of claim 1, further comprising providing the drive fluid to the first layer through an injection well, wherein at least part of the injection well is positioned substantially horizontally in the first layer.
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