Control heat of hydration by characterizing cementitious components
AssigneeHalliburton Energy Services, Inc.
InventorsWalmy Cuello Jimenez, Xueyu Pang, John Paul Bir Singh
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Abstract
Methods of wellbore cementing are provided. A method of designing a cement composition may include: selecting a target heat of hydration for a target time and temperature; selecting one or more cementitious components and a weight percent for each of the one or more cementitious components such that a sum of a heat of hydration of the one or more cementitious components is less than or equal to the target heat of hydration; preparing the cement composition; and allowing the cement composition to set.
Claims19
A method of designing a cement composition for use in a wellbore, the method comprising:
- selecting a target heat of hydration for a target time and temperature,
- wherein the target heat of hydration is for setting of the cement composition in the wellbore,
- wherein the target time is a setting time to reach the target heat of hydration, and
- wherein the temperature is a setting temperature for the cement composition;
- selecting one or more cementitious components and a weight percent for each of the one or more cementitious components for the cement composition;
- determining an approximate heat of hydration for the cement composition for the target time and the temperature,
- wherein the approximate heat of hydration is a sum of a component heat of hydration for each of the one or more cementitious components,
- wherein the component heat of hydration is obtained from a database comprising calorimetric data for each of the one or more cementitious components,
- wherein the one or more cementitious components and the weight percent is selected such that the approximate heat of hydration is less than or equal to the target heat of hydration;
- preparing the cement composition;
- and
- allowing the cement composition to set.
A system of generating a cement composition comprising:
- a plurality of cementitious components;
- and
- a computer system configured to accept input from a user and generate concentrations of the cementitious components for the cement composition,
- wherein the input comprises a target heat of hydration for setting of the cement composition and a target time to reach the target heat of hydration,
- wherein the computer system is further configured to generate concentrations of cementitious components based on the target heat of hydration and the target time to reach a heat of hydration,
- wherein computer system is further configured to determine an approximate heat of hydration of the cement composition at the target time,
- wherein the approximate heat of hydration is a sum of a component heat of hydration for each of the one or more cementitious components,
- wherein the one or more cementitious components and the weight percent is selected such that the approximate heat of hydration is less than or equal to the target heat of hydration.
A method of designing a cement composition for use in a wellbore, the method comprising:
- selecting engineering parameters for the cement composition,
- wherein the engineering parameters comprise a target heat of hydration and one or more additional engineering parameters selected from the group consisting of compressive strength, a rheological property, thickening time, and combinations thereof, wherein the target heat of hydration is for a target time and temperature,
- wherein the target heat of hydration is for a target time and temperature for setting of the cement composition in the wellbore,
- wherein the target time is a setting time to reach the target heat of hydration, and
- wherein the temperature is a setting temperature of the cement composition;
- selecting one or more cementitious components and a weight percent for each of the one or more cementitious components for the cement composition, wherein the one or more cementitious component and the weight percent is selected to meet the one or more additional engineering parameters;
- determining an approximate heat of hydration for the cement composition,
- wherein the approximate heat of hydration is a sum of a component heat of hydration for each of the one or more cementitious components,
- wherein the one or more cementitious components and the weight percent is selected such that the approximate heat of hydration is less than or equal to the target heat of hydration;
- preparing the cement composition;
- and
- allowing the cement composition to set.
Dependencies are inferred from the claim text.