Back to results
US 8,261,827 B2Granted
Methods and compositions comprising kiln dust and metakaolin
AssigneeHalliburton Energy Services, Inc.
InventorsCraig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Bobby J. King
Life of this patent
Estimating the term…
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.
Claims44
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, and
- water;
- placing the settable composition;
- and
- allowing the settable composition to set.
5 more elements
A method of cementing in a subterranean formation 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,
- amorphous silica,
- an accelerator, and
- water;
- placing the settable composition in a subterranean formation;
- and
- allowing the settable composition to set.
7 more elements
A method comprising:
- 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.
5 more elements
Dependencies are inferred from the claim text.