公开(公告)号：NO892785L

公开(公告)日：1990-01-08

申请号：NO892785

申请日：1989-07-05

Applicant: HOECHST AG

Inventor： MILLER DENNIS ,  SCHMIDT MANFRED ,  HALASZ SIGMAR-PETER VON ,  HOLST ARNO ,  PUSCH GUENTER ,  ROSENTHAL GERHARD

IPC: C09K8/584 ,  C09K8/588 ,  C09K23/02 ,  C09K23/12 ,  C09K23/42 ,  B01F17/00 ,  E21B43/00

Abstract: Aqueous surfactant compositions containing a surfactant mixture of a) 55 to 85% by weight of an alkanesulphonate, petroleumsulphonate, olefinsulphonate or alkylbenzenesulphonate having a mean molecular weight of 280-400 and b) 15 to 45% by weight of an ether sulphonate of the formula RO(AO)mA'SO3M where R is C6-C20-alkyl or a phenyl group which is substituted by one to three alkyl groups having a total of 6 to 20 carbon atoms, A is a C2H4 or C3H6 group or a mixture of the two groups, A' is -C2H4- or -C3H6-, m is a number of 3 to 25, and M is an alkali metal atom or ammonium. These surfactant mixtures are suitable for tertiary oil recovery in combination with specific salt-stable copolymers based on polyarylamide. They form stable solutions or dispersions with highly saline water.

公开(公告)号：NO892785A

公开(公告)日：1990-01-08

申请号：NO892785

申请日：1989-07-05

Applicant: HOECHST AG

Inventor： MILLER DENNIS ,  SCHMIDT MANFRED ,  HALASZ SIGMAR-PETER VON ,  HOLST ARNO ,  PUSCH GUENTER ,  ROSENTHAL GERHARD

IPC: B01F17/02 ,  B01F17/12 ,  B01F17/42 ,  C09K8/584 ,  C09K8/588 ,  B01F17/00 ,  E21B43/00

CPC classification number: C09K8/588 ,  C09K8/584

公开(公告)号：NO892785D0

公开(公告)日：1989-07-05

申请号：NO892785

申请日：1989-07-05

Applicant: HOECHST AG

Inventor： MILLER DENNIS ,  SCHMIDT MANFRED ,  HALASZ SIGMAR-PETER VON ,  HOLST ARNO ,  PUSCH GUENTER ,  ROSENTHAL GERHARD

IPC: C09K8/584 ,  C09K8/588 ,  C09K23/02 ,  C09K23/12 ,  C09K23/42 ,  B01F17/00 ,  E21B43/00

Abstract: Aqueous surfactant compositions containing a surfactant mixture of a) 55 to 85% by weight of an alkanesulphonate, petroleumsulphonate, olefinsulphonate or alkylbenzenesulphonate having a mean molecular weight of 280-400 and b) 15 to 45% by weight of an ether sulphonate of the formula RO(AO)mA'SO3M where R is C6-C20-alkyl or a phenyl group which is substituted by one to three alkyl groups having a total of 6 to 20 carbon atoms, A is a C2H4 or C3H6 group or a mixture of the two groups, A' is -C2H4- or -C3H6-, m is a number of 3 to 25, and M is an alkali metal atom or ammonium. These surfactant mixtures are suitable for tertiary oil recovery in combination with specific salt-stable copolymers based on polyarylamide. They form stable solutions or dispersions with highly saline water.