Process for producing mineral oil using surfactants based on a mixture of C32 guerbet-, C34 guerbet-, C36 guerbet-containing alkyl alkoxylates

The present invention relates to a process for mineral oil extraction by means of Winsor type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least three ionic surfactants which are different with regard to the alkyl moiety (R1)(R2)-CH-CH2- and are of the general...

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Bibliographische Detailangaben
Hauptverfasser:	Wloka Veronika, Bock Martin, Spindler Christian, Alvarez-Juergenson Gabriela, Oetter Günter, Vogel Sophie, Neumann Petra, Bittner Christian, Tinsley Jack
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 present invention relates to a process for mineral oil extraction by means of Winsor type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least three ionic surfactants which are different with regard to the alkyl moiety (R1)(R2)-CH-CH2- and are of the general formula (R1)(R2)-CH-CH2-O-(D)n-(B)m-(A)l-XYa−a/bMb+ is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.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 surfactant formulations of ionic surfactants of the general formula.