Methods of cementing using a fluid loss control additive
AssigneeHalliburton Energy Services, Inc.
InventorsMichael J. Szymanski, Samuel J. Lewis, Michael J. R. Segura
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Abstract
A method of cementing, comprising displacing a cement composition into a workspace, wherein the cement composition comprises cement, water, and a fluid loss control additive comprising a polymer and a sugar connected by a pH-sensitive crosslink, and allowing the cement composition to set. A method for reducing fluid loss from a cement composition, comprising providing a cement and a fluid loss control additive, wherein the fluid loss control additive comprises a polymer and a sugar connected by a pH-sensitive crosslink, and mixing the cement, fluid loss control additive, and water to form the cement composition.
Claims18
A method of cementing a wellbore in a subterranean formation, comprising:
- displacing a cement composition into the wellbore, wherein the cement composition comprises cement, water, and a fluid loss control additive comprising a polymer and a sugar connected by a pH-sensitive crosslink;
- and
- allowing the cement composition to set.
A method for reducing fluid loss from a cement composition, comprising:
- providing a cement and a fluid loss control additive, wherein the fluid loss control additive comprises a polymer and a sugar connected by a pH-sensitive crosslink;
- mixing the cement, fluid loss control additive, and water to form the cement composition;
- and
- placing the cement composition in a wellbore in a subterranean formation.
Dependencies are inferred from the claim text.