WELL CEMENTING SLURRY COMPRISING PARTICLES OF EXPANSIVE AGENT COATED WITH PHENOLIC RESIN, METHOD OF PREPARING SUCH A SLURRY AND METHOD OF CEMENTING A WELL

A well cementing slurry uses expanding agent encapsulated in a phenolic resin coating. Cement slurries and systems contain water, hydraulic cement, and the encapsulated expanding agent. Cement slurry preparation methods involve coating expanding agent particles with a phenolic resin. Pre-stressed ce...

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Bibliographische Detailangaben
Hauptverfasser:	ALLOUCHE, Mickael, DROGER, Nicolas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A well cementing slurry uses expanding agent encapsulated in a phenolic resin coating. Cement slurries and systems contain water, hydraulic cement, and the encapsulated expanding agent. Cement slurry preparation methods involve coating expanding agent particles with a phenolic resin. Pre-stressed cementing methods involve preparing the cement slurry, placing the slurry in an annulus in the well, hardening the cement, and delaying expansion of the set cement.