Methods and compositions comprising cement kiln dust having an altered particle size
AssigneeHalliburton Energy Services, Inc.
InventorsCraig W. Roddy, Jiten Chatterji, Chad Brenneis, Callie R. Jarratt
Life of this patent
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Abstract
Methods and compositions are disclosed that comprise cement kiln dust having a mean particle size that has been altered. An embodiment discloses a method of preparing cement kiln dust comprising: providing cement kiln dust having an original particle size; and altering the mean particle size of the cement kiln dust from the original size by grinding, separating, or a combination thereof. Another embodiment discloses a well treatment fluid comprising: cement kiln dust having a mean particle size that has been altered from its original size by grinding, separating, or a combination thereof; and water.
Claims45
A method of preparing a treatment fluid comprising:
- grinding cement kiln dust to have a mean particle size that has been reduced by at least 5% from its original size;
- wherein the mean particle size of the ground cement kiln dust is in a range of from about 1 micron to about 350 microns;
- and
- preparing the treatment fluid by combining components comprising the ground cement kiln dust and water;
- wherein the ground cement kiln dust is present in the treatment fluid in an amount in a range of from about 50% to 100% by weight of a total amount of cementitious components in the treatment fluid.
A method of preparing a settable composition comprising:
- grinding cement kiln dust, to have a mean particle size that has been reduced by at least 5% from its original size to provide an increase in compressive strength of the settable composition;
- wherein the mean particle size of the ground cement kiln dust is in a range of from about 1 micron to about 15 microns;
- preparing the settable composition by combining components comprising the ground cement kiln dust and water;
- wherein the ground cement kiln dust is present in the settable composition in an amount in a range of from about 50% to 100% by weight of a total amount of cementitious components in the settable composition.
A method of preparing a settable composition comprising:
- grinding cement kiln dust to have a mean particle size that has been reduced by at least 5% from its original size to provide an increase in 24-hour compressive strength for the settable composition of at least about 5% as measured using an Ultrasonic Cement Analyzer while maintained at 140° F. and 3,000 psi;
- wherein the mean particle size of the ground cement kiln dust is in a range of from about 1 micron to about 350 microns;
- preparing the settable composition by combining components comprising the ground cement kiln dust, water, and an additive;
- wherein the ground cement kiln dust is present in the settable composition in an amount in a range of from about 50% to 100% by weight of a total amount of cementitious components in the settable composition;
- and wherein the additive is selected from the group consisting of a set retarding additive, a strength-retrogression additive, a set accelerator, a weighting agent, a lightweight additive, a gas-generating additive, a mechanical-property-enhancing additive, a lost-circulation material, a filtration-control additive, a dispersant, a fluid-loss-control additive, a defoaming agent, a foaming agent, an oil-swellable particle, a water-swellable particle, a thixotropic additive, and any combination thereof.
A method of preparing a settable composition comprising:
- grinding cement kiln dust to have a mean particle size that has been reduced by at least 5% from its original size, wherein the mean particle size of the ground cement kiln dust is in a range of from about 1 micron to about 350 microns;
- preparing the settable composition by combining components comprising the ground cement kiln dust and the water;
- wherein the ground cement kiln dust is present in an amount of about 50% to 100% by weight of cementitious components present in the settable composition;
- and
- wherein the settable composition has a density in a range of greater than 13 pounds per gallon to about 16 pounds per gallon.
A method of preparing a treatment fluid comprising:
- grinding a partially calcined kiln feed comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O to have a mean particle size that has been reduced by at least 5% from its original size;
- wherein the mean particle size of the ground and/or separated cement kiln dust is in a range of from about 1 micron to about 350 microns;
- preparing the treatment fluid by combining components comprising the ground partially calcined kiln feed and water;
- wherein the partially calcined kiln feed is present in an amount of about 50% to 100% by weight of cementitious components present in the treatment fluid;
- and wherein the treatment fluid is foamed such that the treatment fluid has a density in a range of about 8 pounds per gallon to about 13 pounds per gallon.
Dependencies are inferred from the claim text.