Patent application number | Description | Published |
20110083846 | PROCESS FOR TERTIARY MINERAL OIL PRODUCTION USING SURFACTANT MIXTURES - A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 8 to 30 ethoxy units, which has a polydispersity of from 1.01 to 1.12, and at least one further surfactant is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells. | 04-14-2011 |
20110083847 | PROCESS FOR TERTIARY MINERAL OIL PRODUCTION USING SURFACTANT MIXTURES - A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one alkylpolyalkoxysulfate comprising propoxy groups, and at least one further surfactant differing therefrom is used, is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells. The alkylpolyalkoxysulfate comprising propoxy groups is prepared in this case by sulfating an alkoxylated alcohol, the alkoxylated alcohol being prepared by alkoxylating an alcohol using double metal cyanide catalysts or double hydroxide clays. | 04-14-2011 |
20110083848 | PROCESS FOR MINERAL OIL PRODUCTION USING SURFACTANT MIXTURES - A process for mineral oil production especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 11 to 40 ethoxy units and a hydrophobic radical having 8 to 32 carbon atoms and at least one further surfactant differing therefrom is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells. | 04-14-2011 |
20110220353 | USE OF SURFACTANT MIXTURES OF POLYCARBOXYLATES FOR MICROEMULSION FLOODING - The present invention relates to processes for tertiary mineral oil production with the aid of a surfactant mixture and to the use of a surfactant mixture for tertiary mineral oil production by means of Winsor type III microemulsion flooding, by injecting a surfactant mixture through at least one aqueous injection borehole into a mineral oil deposit, and withdrawing crude oil from the deposit through at least one production borehole, wherein the surfactant mixture, for the purpose of lowering the interfacial tension between oil and water to <0.1 mN/m, comprises at least the following components: (a) one or more polycarboxylate(s) comprising at least 50 mol % of acrylic acid units and/or methacrylic acid units and/or maleic acid units and/or itaconic acid units or salts thereof, and (b) one or more anionic and/or nonionic surfactant(s). | 09-15-2011 |
20110220364 | PROCESS FOR MINERAL OIL PRODUCTION USING CATIONIC SURFACTANTS HAVING A HYDROPHOBIC BLOCK WITH A CHAIN LENGTH OF 6 TO 10 CARBON ATOMS - The invention relates to a process for mineral oil production by means of Winsor type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least one ionic surfactant of the general formula R | 09-15-2011 |
20110220365 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON C16C18-CONTAINING ALKYL PROPOXY SURFACTANTS - The invention relates to a process for mineral oil production by means of Winsor Type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least one ionic surfactant of the general formula R | 09-15-2011 |
20110220366 | PROCESS FOR EXTRACTING MINERAL OIL USING SURFACTANTS BASED ON BUTYLENE OXIDE-CONTAINING ALKYL ALKOXYLATES - The 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 one ionic surfactant of the general formula R | 09-15-2011 |
20110259583 | PROCESS FOR EXTRACTING MINERAL OIL USING SURFACTANTS, ESPECIALLY BASED ON C35 SECONDARY ALCOHOL-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 one ionic surfactant of the general formula (R | 10-27-2011 |
20110263467 | 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 (R | 10-27-2011 |
20110281782 | CARE POLYMERS - The present application relates to care polymers and fabric and home care compositions comprising such care polymers, as well as processes for making and using such care polymers and such compositions. The performance of the care polymers that Applicants teach, can be further increased by following the emulsification teaching of the present specification and/or combining such care polymers with silicone materials. | 11-17-2011 |
20120241151 | PROCESS FOR MINERAL OIL PRODUCTION USING SURFACTANTS FROM THE CLASS OF THE ALKYL POLYGLUCOSIDES - A process for mineral oil production, in which an aqueous surfactant formulation comprising at least one alkyl polyglucoside is injected into a mineral oil deposit through at least one injection borehole and crude oil is withdrawn from the deposit through at least one production borehole, wherein the formulation does not comprise any alcohols as cosolvents. | 09-27-2012 |
20130059927 | Emulsions of Polyisobutenes, Substance and Process - The present invention is directed to stable emulsions comprising polyolefins, in particular polyisobutene, the process to obtain said emulsions and the use of said emulsions. | 03-07-2013 |
20130098612 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C24 GUERBET-, C26 GUERBET-, C28-GUERBET CONTAINING HYDROCARBYL ALKOXYLATES - The present invention relates to a surfactant mixture comprising at least three ionic surfactants which differ in terms of the hydrocarbyl moiety (R | 04-25-2013 |
20130102504 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C20 GUERBET-, C22 GUERBET-, C24 GUERBET-CONTAINING HYDROCARBYL ALKOXYLATES - The present invention relates to a surfactant mixture comprising at least three ionic surfactants which differ in terms of the hydrocarbyl moiety (R | 04-25-2013 |
20130102505 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C28 GUERBET, C30 GUERBET, C32 GUERBET-CONTAINING HYDROCARBYL ALKOXYLATES - The present invention relates to a surfactant mixture comprising at least three ionic surfactants which differ in terms of the hydrocarbyl moiety (R | 04-25-2013 |
20130102689 | Emulsions of Polyisobutenes, Substance and Process - The present invention is directed to stable emulsions comprising polyolefins, in particular polyisobutene, the process to obtain said emulsions and the use of said emulsions. | 04-25-2013 |