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US 8,273,173 B2Granted
Nano-additive for hydrocarbon well cementing operations
AssigneeIntevep, S.A.
InventorsYibran Argenis Perera Mercado, Johanna Carolina Cano Ramirez, Adriana Carolina Hurtado Acevedo, Susana Isabel Martinez Méndez
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Abstract
A cement additive, comprising nanostructured or not particles of SiO2—CaO—Al2O3 and at least one additive selected from the group consisting of nano-sized particles of SiO2, 2CaO.SiO2, 3CaO.SiO2, Al2O3, P—Ca and/or combinations thereof.
Claims9
A cement additive, comprising particles of SiO2-CaO—Al2O3 and at least one additive selected from the group consisting of nano-sized particles of SiO2, 2CaO.SiO2, 3CaO.SiO2, Al2O3, P—Ca and combinations thereof.
Dependencies are inferred from the claim text.