Non-aqueous liquid anti-shrinkage cement additives
AssigneeHalliburton Energy Services, Inc.
InventorsSamuel J Lewis, Thomas Singh Sodhi, Kyriacos Agapiou, Aleksey Kolasnikov
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Abstract
The present disclosure relates to a method of cementing comprising: providing a cement composition comprising: water, a cement, and a non-aqueous liquid anti-shrinkage cement additive comprising calcined magnesium oxide and a non-aqueous liquid; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation. Non-aqueous liquid anti-shrinkage cement additives, cement compositions, and systems are also provided.
Claims20
A cement composition comprising:
- water;
- a cement;
- and
- a suspension of calcined magnesium oxide in a hydrocarbon liquid.
A non-aqueous liquid anti-shrinkage cement additive comprising:
- a non-aqueous liquid;
- calcined magnesium oxide;
- and
- a viscosifying additive selected from the group consisting of organophilic clay, hydrophobically modified silica, hydrophobically modified bio-polymers, hydrophobically modified synthetic polymers, or combinations thereof wherein the viscosifying additive is present in an amount of about 0.01% to about 10% by weight in the suspension.
A method of preparing a non-aqueous liquid anti-shrinkage cement additive, the method comprising:
- providing calcined magnesium oxide and a non-aqueous liquid comprising a hydrocarbon liquid;
- adding the calcined magnesium oxide and a non-aqueous liquid to a container to form a mixture;
- and
- shearing the mixture until a homogenous solution is obtained.
Dependencies are inferred from the claim text.