Foaming compositions for enhanced oil recovery

The invention relates to a composition C which comprises, in an aqueous medium M:surfactants suitable for creating a foam in the presence of a gas; andpolymers P based on acrylamide or acrylamido units, having a molecular mass of 1,000,000 to 20,000,000 g/mol;or: composition C has a viscosity of les...

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Bibliographische Detailangaben
Hauptverfasser:	Miralles, Vincent, Morvan, Mikel, Chevallier, Eloise
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS POLISHES
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Beschreibung
Zusammenfassung:	The invention relates to a composition C which comprises, in an aqueous medium M:surfactants suitable for creating a foam in the presence of a gas; andpolymers P based on acrylamide or acrylamido units, having a molecular mass of 1,000,000 to 20,000,000 g/mol;or: composition C has a viscosity of less than 6 mPa·s; andthe content of polymer P is greater than the concentration limit beyond which the apparent viscosity of a foam obtained from composition C is greater by at least 10% than the apparent viscosity of a foam obtained from the same composition but deprived of polymers.The invention further relates to the use of these compositions as foaming compositions for EOR.