COMPOSITIONS AND METHODS FOR COMPLETING SUBTERRANEAN WELLS

Spacer fluids that are stable at temperatures up to at least 300°C comprise water, polystyrene sulfonate and a mixture of particulate materials. The particulate materials may be chosen such that the mixture has at least a trimodal particle-size distribution. The fluids may further comprise inorganic...

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Bibliographische Detailangaben
Hauptverfasser:	MICHAUX, MICHEL, GABILLY, LAURENT, CARITEY, JEAN-PHILIPPE
Format:	Patent
Sprache:	eng ; fre
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:	Spacer fluids that are stable at temperatures up to at least 300°C comprise water, polystyrene sulfonate and a mixture of particulate materials. The particulate materials may be chosen such that the mixture has at least a trimodal particle-size distribution. The fluids may further comprise inorganic clays, mutual solvents and surfactants. L'invention concerne des fluides espaceurs stables à des températures allant jusqu'à au moins 300°C qui comprennent de l'eau, du polystyrène sulfonate et un mélange de matériaux particulaires. Les matériaux particulaires peuvent être choisis de telle sorte que le mélange ait au moins une distribution trimodale de la taille des particules. Les fluides peuvent en plus comprendre des argiles inorganiques, des solvants et des tensioactifs réciproques.