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    PROCESS FOR MINERAL OIL PRODUCTION USING HYDROPHOBICALLY ASSOCIATING COPOLYMERS
    31.
    发明专利
    PROCESS FOR MINERAL OIL PRODUCTION USING HYDROPHOBICALLY ASSOCIATING COPOLYMERS 未知

    公开(公告)号：CA2817792A1

    公开(公告)日：2012-05-31

    申请号：CA2817792

    申请日：2011-11-22

    Applicant: BASF SE

    Inventor： LANGLOTZ BJORN ,  REICHENBACH-KLINKE ROLAND ,  SPINDLER CHRISTIAN ,  WENZKE BENJAMIN

    IPC: E21B43/22 ,  C09K8/588

    Abstract: The invention relates to a method for oil recovery, according to which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer is forced through at least one injection well in an oil deposit and crude oil is extracted from the oil deposit through at least one production well, said deposit being at a temperature of between 35°C and 120°C, preferably between 40°C and 90°C. The water-soluble, hydrophobically associating copolymer comprises at least acryl amide or derivatives thereof, a monoethylenically unsaturated monomer having anionic groups and a monoethylencally unsaturated monomer that can cause the association of the copolymer.

    PROCESS FOR TERTIARY MINERAL OIL PRODUCTION
    34.
    发明专利
    PROCESS FOR TERTIARY MINERAL OIL PRODUCTION 未知

    公开(公告)号：MY169113A

    公开(公告)日：2019-02-18

    申请号：MYPI2015001103

    申请日：2013-11-06

    Applicant: BASF SE

    Inventor： REICHENBACH-KLINKE ROLAND ,  LANGLOTZ BJORN ,  MACEFIELD IAN ROBERT ,  DR SPNDLER CHRISTIAN

    Abstract: Process for tertiary mineral oil production in which an aqueous injection fluid comprising at least a water soluble polyacrylamide-(co)polymer dissolved in the aqueous fluid is injected into a mineral oil deposit and the aqueous injection fluid is prepared by mixing a liquid dispersion polymer composition comprising particles of polyacrylamide-(co)polymers dispersed in an organic, hydrophobic liquid with an aqueous fluid. Preferably, the process is carried out on an off-shore production site.

    PROCESS FOR PRODUCING STABILIZED POLYACRYLAMIDES
    35.
    发明专利
    PROCESS FOR PRODUCING STABILIZED POLYACRYLAMIDES 未知

    公开(公告)号：CA2976295A1

    公开(公告)日：2016-08-25

    申请号：CA2976295

    申请日：2016-02-19

    Applicant: BASF SE

    Inventor： LANGLOTZ BJORN

    IPC: C08L33/26 ,  C08J3/20 ,  C08K5/47

    Abstract: The present application relates to a process for producing a composition comprising at least one acrylamide polymer P and at least one stabilizer St, wherein the acrylamide polymer P is obtained in the form of apolymer gel, and the acrylamide polymer gel having a water content in the range from 50% to 80% by weight, based on the overall polymer gel, is treated with an aqueous solution SS comprising at least one stabilizer St selected from the group consisting of sulfur compounds, N-oxides, organic nitroso compounds, aromatic hydroxyl compounds and ketones.

    Method for recovering petroleum
    36.
    发明专利
    Method for recovering petroleum 未知

    公开(公告)号：AU2014363793A1

    公开(公告)日：2016-07-28

    申请号：AU2014363793

    申请日：2014-12-05

    Applicant: BASF SE

    Inventor： LANGLOTZ BJORN ,  ZIMMERMANN TOBIAS ,  REICHENBACH-KLINKE ROLAND ,  BITTNER CHRISTIAN

    IPC: C09K8/588 ,  C08F220/56

    Abstract: A method for recovering petroleum from underground petroleum reservoirs, wherein an aqueous formulation containing at least one water-soluble hydrophobically associating copolymer is injected via at least one injection bore into a petroleum reservoir at a reservoir temperature ranging from 20°C to 120°C, and crude petroleum is extracted from the reservoir via at least one production bore; the water-soluble copolymer contains at least acrylamide or derivatives thereof and a mixture containing at least two amphiphilic macromonomers.

    REVERSE-PHASE POLYMERISATION PROCESS
    38.
    发明专利
    REVERSE-PHASE POLYMERISATION PROCESS 未知

    公开(公告)号：CA2919320A1

    公开(公告)日：2015-02-05

    申请号：CA2919320

    申请日：2014-07-29

    Applicant: BASF SE

    Inventor： HASCHICK ROBERT ,  JELICIC ALEKSANDRA ,  BARRATT JOHN SCOTT ,  HESSE PASCAL ,  SOETJE OLIVER ,  FONSECA ZEPEDA GABRIELA EUGENIA ,  KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN ,  LANGLOTZ BJORN

    IPC: C08F2/32 ,  C08F20/56

    Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises, providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point subjecting the aqueous monomer beads to polymerisation conditions to initiate polymerisation to form polymerising beads, wherein the polymerising beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering water soluble or water swellable polymer beads from the suspension. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus.

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