Method for recovering petroleum
    1.
    发明专利

    公开(公告)号:AU2014363793B2

    公开(公告)日:2018-02-22

    申请号:AU2014363793

    申请日:2014-12-05

    Applicant: BASF SE

    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.

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