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BOREHOLE CEMENT SLURRY ADDITIVE, METHOD FOR STORING SAME, BOREHOLE CEMENT SLURRY, AND BOREHOLE CEMENTING METHOD

MURAKAMI SATORU / KIMATA MASAKI / OOTA ISAO

Provided are: a borehole cement slurry additive that is capable of suppressing the generation of free water from cement slurries in any environment, whether cold regions, mild regions, or hot regions; and a method for storing the same. The borehole cement slurry additive contains: an aqueous dispersion of silica having an average particle size of 3-200 nm as determined via dynamic light scattering; and a compound having an alcoholic hydroxyl group as a dispersion stabilizer, the compound being included in an amount of 1-30 mol per 1,000 g dispersion medium in the aqueous silica dispersion.

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BOREHOLE CEMENT SLURRY ADDITIVE, METHOD FOR STORING SAME, BOREHOLE CEMENT SLURRY, AND BOREHOLE CEMENTING METHOD

MURAKAMI SATORU / KIMATA MASAKI / OOTA ISAO

Provided are: a borehole cement slurry additive that is capable of suppressing the generation of free water from cement slurries in any environment, whether cold regions, mild regions, or hot regions; and a method for storing the same. The borehole cement slurry additive contains: an aqueous dispersion of silica having an average particle size of 3-200 nm as determined via dynamic light scattering; and a compound having an alcoholic hydroxyl group as a dispersion stabilizer, the compound being included in an amount of 1-30 mol per 1,000 g dispersion medium in the aqueous silica dispersion.

BOREHOLE CEMENT SLURRY ADDITIVE, METHOD FOR STORING SAME, BOREHOLE CEMENT SLURRY, AND BOREHOLE CEMENTING METHOD

MURAKAMI SATORU / KIMATA MASAKI / OOTA ISAO

Provided are: a borehole cement slurry additive that is capable of suppressing the generation of free water from cement slurries in any environment, whether cold regions, mild regions, or hot regions; and a method for storing the same. The borehole cement slurry additive contains: an aqueous dispersion of silica having an average particle size of 3-200 nm as determined via dynamic light scattering; and a compound having an alcoholic hydroxyl group as a dispersion stabilizer, the compound being included in an amount of 1-30 mol per 1,000 g dispersion medium in the aqueous silica dispersion.

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Titel:

BOREHOLE CEMENT SLURRY ADDITIVE, METHOD FOR STORING SAME, BOREHOLE CEMENT SLURRY, AND BOREHOLE CEMENTING METHOD

Beteiligte:

MURAKAMI SATORU (Autor:in) / KIMATA MASAKI (Autor:in) / OOTA ISAO (Autor:in)

Erscheinungsdatum:

23.06.2022

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Englisch

Klassifikation:

IPC: C09K Materialien für Anwendungen, soweit nicht anderweitig vorgesehen , MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR / C04B Kalk , LIME

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