ROBUST ALKYL ETHER SULFATE MIXTURE FOR ENHANCED OIL RECOVERY

The invention relates to a process for mineral oil production, in which an aqueous saline surfactant formulation comprising a surfactant mixture of at least one anionic surfactant of the general formula R1-O-(CH2C(CH3)HO)x-(CH2CH2O)y-SO3M and at least one anionic surfactant of the general formula R2...

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Bibliographische Detailangaben
Hauptverfasser:	HERNANDEZ MORALES, Clara Maria, ALVAREZ JUERGENSON, Gabriela, RATHS, Hans-Christian, BITTNER, Christian, MISHRA, Ashok Kumar, LOHATEERAPARP, Prapas, WENZKE, Benjamin, BUESCHEL, Michael, COHEN, Kathrin, ALTMANN, Thomas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENT COMPOSITIONS DETERGENTS DYES FATTY ACIDS THEREFROM MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	The invention relates to a process for mineral oil production, in which an aqueous saline surfactant formulation comprising a surfactant mixture of at least one anionic surfactant of the general formula R1-O-(CH2C(CH3)HO)x-(CH2CH2O)y-SO3M and at least one anionic surfactant of the general formula R2-O-(CH2CH2O)z-SO3M and a base is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes. The invention further relates to the surfactant mixture, a concentrate comprising the surfactant mixture and a manufacturing process as well as the use of the surfactant mixture and the con- centrate in the production of mineral oil from underground mineral oil deposits.