公开(公告)号：US20130102505A1

公开(公告)日：2013-04-25

申请号：US13659285

申请日：2012-10-24

Applicant: Basf SE

Inventor： Christian Bittner ,  Günter Oetter ,  Jack Tinsley ,  Christian Spindler ,  Gabriela Alvarez-Juergenson ,  Sophie Maitro-Vogel

IPC: C09K8/584

CPC classification number: C09K8/584

Abstract: The present invention relates to a surfactant mixture comprising at least three ionic surfactants which differ in terms of the hydrocarbyl moiety (R1)(R2)—CH—CH2— and are of the general formula (I) where R1, R2, A0, k, X, o, Y, a, b, M are each as defined in the description and the claims. The invention further relates to the use and preparation thereof, and to aqueous surfactant formulations comprising the mixtures, and to processes for producing mineral oil by means of Winsor type III microemulsion flooding, in which the aqueous surfactant formulation is injected into a mineral oil deposit through injection wells and crude oil is withdrawn from the deposit through production wells.

Abstract translation: 本发明涉及包含至少三种离子表面活性剂的表面活性剂混合物，它们在烃基部分（R 1）（R 2）-CH-CH 2 - 和通式（I）方面不同，其中R1，R2，A0，k ，X，o，Y，a，b，M各自如说明书和权利要求书中所定义。 本发明进一步涉及其使用和制备以及包含该混合物的含水表面活性剂制剂，以及通过Winsor III型微乳液淹水制备矿物油的方法，其中将表面活性剂水溶液注入矿物油沉积物中 注入井和原油通过生产井从沉积物中取出。