公开(公告)号：US20210246362A1

公开(公告)日：2021-08-12

申请号：US16972823

申请日：2019-06-03

Applicant: BASF SE

Inventor： Bjoern LANGLOTZ ,  Christian BITTNER ,  Stefan STEIN

IPC: C09K8/588 ,  C08K5/42 ,  C08F220/56 ,  C09K8/035

Abstract: The present invention relates to a process for the preparation of a water-soluble copolymer comprising the step of reacting a monomer (a) of formula (I), wherein Q1, Q2, R1 to R7 and X have the meaning as indicated in the description and claims with at least one monoethylenically unsaturated, anionic monomer (b), preferably representing a monoethylenically unsaturated monomer comprising at least one carboxy, phosphonate or sulfonate group and salts thereof, preferably their ammonium salts or alkaline-earth metal salts or alkali metal salts; and at least one monoethylenically unsaturated, non-ionic monomer (c). The present invention further relates to a copolymer obtainable by said process and its use in enhanced oil recovery (EOR), a formulation comprising said copolymer and a method of oil production uses said formulation.

公开(公告)号：US20200239762A1

公开(公告)日：2020-07-30

申请号：US16617575

申请日：2018-05-16

Applicant: BASF SE ,  Wintershall Holding GmbH

Inventor： Christian BITTNER ,  Guenter OETTER ,  Christian SPINDLER ,  Hans BULLIEN ,  David LEY ,  Lorenz SIGGEL

IPC: C09K8/60 ,  C09K8/86 ,  E21B43/16

Abstract: The present invention relates to a method of producing mineral oil from underground mineral oil deposits, in which an aqueous saline surfactant formulation comprising a surfactant mixture, for the purpose of lowering the interfacial tension between oil and water to

公开(公告)号：US20170355897A1

公开(公告)日：2017-12-14

申请号：US15527249

申请日：2015-11-17

Applicant: BASF SE

Inventor： Christian BITTNER ,  Günter OETTER ,  Sebastian Alexander WEIßE ,  Hans-Christian RATHS ,  Jack TINSLEY ,  Marcel KIENLE

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

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：US20170101576A1

公开(公告)日：2017-04-13

申请号：US15103356

申请日：2014-12-05

Applicant: BASF SE

Inventor： Björn LANGLOTZ ,  Tobias ZIMMERMANN ,  Roland REICHENBACH-KLINKE ,  Christian BITTNER

IPC: C09K8/588 ,  E21B43/16 ,  C08F220/56

CPC classification number: C09K8/588 ,  C08F220/56 ,  C08F2800/20 ,  C08L33/26 ,  E21B43/16

Abstract: A process for producing mineral oil from underground mineral oil deposits, in which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer is injected through at least one injection well into a mineral oil deposit having a deposit temperature of 20° C. to 120° C. and crude oil is withdrawn from the deposit through at least one production well, wherein the water-soluble copolymer comprises at least acrylamide or derivatives thereof and a mixture comprising at least two amphiphilic macromonomers.

公开(公告)号：US20170015894A1

公开(公告)日：2017-01-19

申请号：US15124959

申请日：2015-03-06

Applicant: BASF SE

Inventor： Christian BITTNER ,  Benjamin WENZKE ,  Guenter OETTER ,  Sebastian A. WEISSE

IPC: C09K8/584 ,  E21B43/24 ,  E21B43/16 ,  C09K8/594 ,  C09K8/58

CPC classification number: C09K8/584 ,  C09K8/58 ,  C09K8/594 ,  E21B43/164 ,  E21B43/24 ,  Y02P20/544

Abstract: A method for mineral oil production by means of CO2 flooding, in which liquid or supercritical CO2 and at least one alk(en)yl polyglucoside are injected through at least one injection well into a mineral oil deposit and mineral oil is withdrawn from the deposit through at least one production well. The alk(en)yl polyglucoside is preferably dissolved in the CO2 phase. A method for mineral oil production by means of CO2 flooding, in which mixtures of the alk(en)yl polyglucosides with alk(en)yl polyalkoxylates or anionic surfactants are used.

Abstract translation: 通过二氧化碳淹没的矿物油生产方法，其中通过至少一个注入井将液体或超临界CO 2和至少一种烷（en）基多糖苷注入矿物油沉积物中，矿物油通过 至少一个生产井。 烷基（en）基多糖苷优选溶解在CO 2相中。 通过二氧化碳淹没进行矿物油生产的方法，其中使用了烷基（en）基多葡糖苷与烷基氧基化物或阴离子表面活性剂的烷基（en）基的混合物。

公开(公告)号：US20140011715A1

公开(公告)日：2014-01-09

申请号：US13933266

申请日：2013-07-02

Applicant: BASF SE

Inventor： Roland BOEHN ,  Benjamin SCHAEFER ,  Christian BITTNER ,  Fabien Jean BRAND ,  Peter HAENGGI

IPC: C23F11/16 ,  C23F11/14 ,  C10M133/42

CPC classification number: C23F11/16 ,  C10M133/42 ,  C10M173/02 ,  C10M2215/222 ,  C10N2230/12 ,  C10N2240/40 ,  C10N2240/406 ,  C10N2240/407 ,  C10N2240/408 ,  C23F11/149

Abstract: Melamine derivatives and mixtures thereof with aqueous systems, a process for inhibiting corrosion of metals and metal alloys with melamine derivatives and mixtures thereof and the use of melamine derivatives and mixtures thereof as corrosion inhibitors for aqueous systems, for example water/oil mixtures, especially in the field of cleaning compositions, cooling fluids, oilfield chemicals or lubricants.

Abstract translation: 三聚氰胺衍生物及其与含水体系的混合物，用于抑制金属和金属合金与三聚氰胺衍生物及其混合物的腐蚀的方法，以及使用三聚氰胺衍生物及其混合物作为水系统的防腐剂，例如水/油混合物，特别是在 清洁组合物，冷却液，油田化学品或润滑剂的领域。