Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
First Claim
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1. A method for treating an oil shale formation comprising dawsonite, the method comprising:
- providing heat from one or more heaters to the formation to heat the formation;
producing hydrocarbon fluids 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; and
producing the dissolved dawsonite decomposition products.
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Abstract
A method for treating an oil shale formation comprising dawsonite includes providing heat from one or more heaters to the formation to heat the formation. Hydrocarbon fluids are produced from the formation. At least some dawsonite in the formation is decomposed with the provided heat. A chelating agent is provided to the formation to dissolve at least some dawsonite decomposition products. The dissolved dawsonite decomposition products are produced from the formation.
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Citations
22 Claims
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1. A method for treating an oil shale formation comprising dawsonite, the method comprising:
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providing heat from one or more heaters to the formation to heat the formation; producing hydrocarbon fluids 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; and producing the dissolved dawsonite decomposition products. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for producing aluminum, the method comprising:
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providing heat from one or more heaters to an oil shale formation to heat the formation; producing hydrocarbon fluids 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. - View Dependent Claims (16, 17, 18)
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19. A method for producing aluminum, the method comprising:
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providing heat from one or more heaters to an oil shale formation to heat the formation; producing hydrocarbon fluids 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 using the produced electricity. - View Dependent Claims (20, 21, 22)
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Specification