Methods and compositions comprising kiln dust and metakaolin
First Claim
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1. A method comprising:
- providing a settable composition comprising;
a hydraulic cement,a partially calcined kiln feed removed from a gas stream comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O,metakaolin, andwater;
placing the settable composition; and
allowing the settable composition to set.
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Abstract
The present invention provides settable compositions and methods of using settable compositions that comprise a hydraulic cement; a partially calcined kiln feed comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O; metakaolin; and water. The location to be cemented may be above ground or in a subterranean formation.
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Citations
44 Claims
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1. A method comprising:
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providing a settable composition comprising; a hydraulic cement, a partially calcined kiln feed removed from a gas stream comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O, metakaolin, and water; placing the settable composition; and allowing the settable composition to set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of cementing in a subterranean formation comprising:
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providing a settable composition comprising; a hydraulic cement, a partially calcined kiln feed removed from a gas stream comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O, metakaolin, amorphous silica, an accelerator, and water; placing the settable composition in a subterranean formation; and allowing the settable composition to set. - View Dependent Claims (33, 34)
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35. A method comprising:
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providing a settable composition comprising; a hydraulic cement, kiln dust comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O present in the settable composition in an amount in the range of from about 5% to about 80% by weight, metakaolin, and water; placing the settable composition; and allowing the settable composition to set. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification