公开(公告)号：CA3075588A1

公开(公告)日：2019-03-28

申请号：CA3075588

申请日：2018-09-19

Applicant: BASF SE

Inventor： BITTNER CHRISTIAN ,  MISHRA ASHOK KUMAR ,  COHEN KATHRIN ,  HERNANDEZ MORALES CLARA MARIA ,  LOHATEERAPARP PRAPAS ,  RATHS HANS-CHRISTIAN ,  BUESCHEL MICHAEL ,  ALVAREZ JUERGENSON GABRIELA ,  ALTMANN THOMAS ,  WENZKE BENJAMIN

IPC: C09K8/584 ,  C11D1/29

Abstract: 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R2-O-(CH2CH2O)z-SO3M and a base is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.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.