公开(公告)号：US20190203103A1

公开(公告)日：2019-07-04

申请号：US16296904

申请日：2019-03-08

Applicant: BASF SE

Inventor： Christian Bittner ,  Günter Oetter ,  Sebastian Weiße ,  Hans-Christian Raths ,  Jack Tinsley ,  Marcel Kienle

IPC: C09K8/584 ,  E21B43/20 ,  C09K8/86 ,  C09K8/60 ,  B01F17/00

CPC classification number: C09K8/584 ,  B01F17/0085 ,  C09K8/524 ,  C09K8/602 ,  C09K8/86 ,  C09K2208/28 ,  E21B43/20

Abstract: The present invention relates to a method for producing mineral oil from underground mineral oil deposits, in which an aqueous formulation comprising at least a mixture of alkyl ether carboxylate and corresponding alkyl ether alcohol, where the alkyl ether carboxylate has been prepared from the alkyl ether alcohol and the molar ratio in the mixture of alkyl ether carboxylate:alkyl ether alcohol is from 51:49 to 92:8, is injected through at least one injection well into a mineral oil deposit, where the deposit has a deposit temperature of 55° C. to 150° C., a crude oil having more than 20° API and a deposit water having more than 100 ppm of divalent cations, and crude oil is withdrawn through at least one production well from the deposit. The invention further relates to the preparation of the mixture and to a concentrate comprising the mixture.

公开(公告)号：US10961432B2

公开(公告)日：2021-03-30

申请号：US16296904

申请日：2019-03-08

Applicant: BASF SE

Inventor： Christian Bittner ,  Günter Oetter ,  Sebastian Alexander Weiße ,  Hans-Christian Raths ,  Jack Tinsley ,  Marcel Kienle

IPC: C09K8/584 ,  B01F17/00 ,  C09K8/60 ,  E21B43/20 ,  C09K8/524 ,  C09K8/28 ,  C09K8/86

Abstract: The present invention relates to a method for producing mineral oil from underground mineral oil deposits, in which an aqueous formulation comprising at least a mixture of alkyl ether carboxylate and corresponding alkyl ether alcohol, where the alkyl ether carboxylate has been prepared from the alkyl ether alcohol and the molar ratio in the mixture of alkyl ether carboxylate:alkyl ether alcohol is from 51:49 to 92:8, is injected through at least one injection well into a mineral oil deposit, where the deposit has a deposit temperature of 55° C. to 150° C., a crude oil having more than 20° API and a deposit water having more than 100 ppm of divalent cations, and crude oil is withdrawn through at least one production well from the deposit. The invention further relates to the preparation of the mixture and to a concentrate comprising the mixture.

公开(公告)号：US10266751B2

公开(公告)日：2019-04-23

申请号：US15527249

申请日：2015-11-17

Applicant: BASF SE

Inventor： Christian Bittner ,  Günter Oetter ,  Sebastian Alexander Weiβe ,  Hans-Christian Raths ,  Jack Tinsley ,  Marcel Kienle

IPC: E21B43/20 ,  C09K8/584 ,  B01F17/00 ,  C09K8/60 ,  C09K8/86 ,  C09K8/524

Abstract: The present invention relates to a method for producing mineral oil from underground mineral oil deposits, in which an aqueous formulation comprising at least a mixture of alkyl ether carboxylate and corresponding alkyl ether alcohol, where the alkyl ether carboxylate has been prepared from the alkyl ether alcohol and the molar ratio in the mixture of alkyl ether carboxylate:alkyl ether alcohol is from 51:49 to 92:8, is injected through at least one injection well into a mineral oil deposit, where the deposit has a deposit temperature of 55° C. to 150° C., a crude oil having more than 20° API and a deposit water having more than 100 ppm of divalent cations, and crude oil is withdrawn through at least one production well from the deposit. The invention further relates to the preparation of the mixture and to a concentrate comprising the mixture.