公开(公告)号：CA3009290A1

公开(公告)日：2017-07-20

申请号：CA3009290

申请日：2017-01-04

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  BITTNER CHRISTIAN ,  ZIMMERMANN TOBIAS ,  STAVLAND ARNE

IPC: C09K8/035

Abstract: The invention relates to a method for the tertiary recovery of petroleum from underground deposits having a deposit temperature of = 70°C, wherein a copolymer comprising (meth)acrylamide or derivatives thereof, monoethylenically unsaturated carboxylic acids, in particular acrylic acid, and an associative monomer is used, wherein the amount of the associative monomer is 0.1 to 0.9 wt%. A water-soluble copolymer comprising (meth)acrylamide or derivatives thereof, monoethylenically unsaturated carboxylic acids, in particular acrylic acid, and 0.1 to 0.9 wt% of an associative monomer.

公开(公告)号：ZA201805292B

公开(公告)日：2020-01-29

申请号：ZA201805292

申请日：2018-08-10

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  BITTNER CHRISTIAN ,  ZIMMERMANN TOBIAS ,  STAVLAND ARNE

Abstract: A method of tertiary production of mineral oil from underground deposits having a deposit temperature of ≤70° C., in which a copolymer comprising (meth)acrylamide or derivatives thereof, monoethylenically unsaturated carboxylic acids, especially acrylic acid, and an associative monomer is used, wherein the amount of the associative monomer is 0.1% to 0.9% by weight. A water-soluble copolymer comprising (meth)acrylamide or derivatives thereof, monoethylenically unsaturated carboxylic acids, especially acrylic acid, and 0.1% to 0.9% by weight of an associative monomer.