公开(公告)号：CA2795104A1

公开(公告)日：2011-10-27

申请号：CA2795104

申请日：2011-04-14

Applicant: BASF SE

Inventor： BITTNER CHRISTIAN ,  OETTER GUENTER ,  TINSLEY JACK ,  SPINDLER CHRISTIAN ,  ALVAREZ-JUERGENSON GABRIELA ,  MAITRO-VOGEL SOPHIE ,  NEUMANN PETRA ,  WLOKA VERONIKA ,  BOCK MARTIN

IPC: C09K8/584 ,  C11D1/06 ,  C11D1/29 ,  C11D1/34

Abstract: The invention relates to a method for producing mineral oil by means of Winsor Type III microemulsion flooding, wherein an aqueous surfactant formulation which comprises, in relation to the alkyl part (R1)(R2)-CH-CH2-, at least three different ionic surfactants of general formula (R1)(R2)-CH-CH2-0-(D)n-(B)m-(A)I-XYa- a/b Mb+, is pressed though injection wells into a mineral oil deposit and crude oil is extracted from the deposit via production wells. The invention also relates to surfactants formulations of ionic surfactants according to the general formula.

公开(公告)号：CA2792305A1

公开(公告)日：2011-09-15

申请号：CA2792305

申请日：2011-03-09

Applicant: BASF SE

Inventor： BITTNER CHRISTIAN ,  OETTER GUENTER ,  TINSLEY JACK ,  SPINDLER CHRISTIAN ,  ALVAREZ-JUERGENSON GABRIELA ,  MAITRO-VOGEL SOPHIE

IPC: C09K23/18 ,  C07C211/63 ,  C09K8/588 ,  C09K23/38 ,  C09K23/42

Abstract: The invention relates to a method for producing crude oil by means of Winsor type III microemulsion flooding, wherein an aqueous surfactant formulation which comprises at least one ionic surfactant of general formula R1 N+ (R2)m (R3)n (R4) X- is forced through injection wells into a mineral oil deposit and crude oil is withdrawn from the deposit through production wells.

公开(公告)号：CA2790913A1

公开(公告)日：2011-09-15

申请号：CA2790913

申请日：2011-03-04

Applicant: BASF SE

Inventor： BITTNER CHRISTIAN ,  OETTER GUNTER ,  TINSLEY JACK ,  SPINDLER CHRISTIAN ,  MAITRO-VOGEL SOPHIE ,  ALVAREZ-JUERGENSON GABRIELA ,  GUZMANN MARCUS

IPC: C09K8/588

Abstract: The invention relates to a method for producing tertiary crude oil with the aid of a surfactant mixture and/or to the use of a surfactant mixture for producing tertiary crude oil by means of Winsor type III microemulsion flooding, in which a surfactant mixture is forced through at least one aqueous injection well into a mineral oil deposit and crude oil is removed from the deposit through at least one production well. The surfactant mixture comprises, for lowering the interfacial tension between oil and water to

公开(公告)号：CA2774318A1

公开(公告)日：2011-04-21

申请号：CA2774318

申请日：2010-10-11

Applicant: BASF SE

Inventor： BITTNER CHRISTIAN ,  OETTER GUENTER ,  TINSLEY JACK ,  SPINDLER CHRISTIAN ,  ALVAREZ JUERGENSON GABRIELA ,  VOGEL SOPHIE

IPC: C09K8/584 ,  C09K23/00

Abstract: A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation is used which comprises at least one alkyl polyalkoxysulphate containing propoxy groups, and also at least one further, different surfactant, is forced through injection wells into a mineral oil deposit, and crude oil is removed from the deposit through production wells. The alkyl polyalkoxysulphate containing propoxy groups here is prepared by sulphating an alkoxylated alcohol, the alkoxylated alcohol being prepared by alkoxylating an alcohol using double metal cyanide catalysts or double hydroxide clays.