Back to results
US 10,294,154 B2Granted
Methods for determining reactive index for cementitious components, associated compositions, and methods of use
AssigneeHalliburton Energy Services, Inc.
InventorsRonnie G. Morgan, D. Chad Brenneis, Craig W. Roddy
Life of this patent
Estimating the term…
Abstract
A variety of methods and compositions are disclosed, including, in one embodiment, a settable composition comprising: water; and a cementitious component having a calculated reactive index.
Claims15
A method of wellbore cementing, the method comprising:
- determining a target value of a parameter of a blended cementitious component, the blended cementitious component comprising a first cementitious component and a second cementitious component, wherein the parameter is compressive strength, Young's Modulus, fluid loss, thickening time, volume average apparent viscosity, plastic viscosity, yield point, or free water, and wherein the target value of the parameter is determined by a wellbore design specification;
- calculating a reactive index for the first cementitious component;
- calculating a reactive index for the second cementitious component;
- calculating a mass fraction for the first cementitious component and a mass fraction for the second cementitious component based on the reactive index such that a measured value of the parameter of the blended cementitious component is greater than or equal to the target value of the parameter;
- and
- preparing the blended cementitious component by blending the first cementitious component and the second cementitious according to the calculated mass fraction;
- preparing a settable composition comprising the blended cementitious component and water;
- introducing the settable composition into the wellbore annulus.
5 more elements
A method of preparing a settable composition comprising:
- determining a target value of a parameter of a blended cementitious component wherein the parameter is compressive strength, Young's Modulus, fluid loss, thickening time, volume average apparent viscosity, plastic viscosity, yield point, or free water, wherein the blended cementitious component comprises Portland cement, a first cement kiln dust, and a second cement kiln dust and wherein the target value of the parameter is determined by a wellbore design specification;
- calculating a reactive index of the Portland cement, the first cement kiln dust, and the second cement kiln dust;
- calculating a mass fraction for the Portland cement, the first cement kiln dust, and the second cement kiln dust, based on the reactive index, such that a measured value of the parameter of the blended cementitious component is greater than or equal to the target value of the parameter;
- preparing the blended cementitious component by blending the Portland cement, the first cement kiln dust, and the second cement kiln dust according to the calculated mass fraction;
- preparing a settable composition comprising the blended cementitious component and water;
- introducing the settable composition into the wellbore annulus.
3 more elements
Dependencies are inferred from the claim text.