发明名称 |
METHOD FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C32-GUERBET-, C34-GUERBET-, C36-GUERBET-CONTAINING ALKYL ALKOXYLATES |
摘要 |
<p>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a/b Mb+ is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.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.</p> |
申请公布号 |
EP2561036(A1) |
申请公布日期 |
2013.02.27 |
申请号 |
EP20110714973 |
申请日期 |
2011.04.14 |
申请人 |
BASF SE |
发明人 |
BITTNER, CHRISTIAN;OETTER, GUENTER;TINSLEY, JACK;SPINDLER, CHRISTIAN;ALVAREZ-JUERGENSON, GABRIELA;MAITRO-VOGEL, SOPHIE;NEUMANN, PETRA;WLOKA, VERONIKA;BOCK, MARTIN |
分类号 |
C09K8/584;C11D1/06;C11D1/29;C11D1/34 |
主分类号 |
C09K8/584 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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