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AQUEOUS FORMULATIONS OF HYDROPHOBICALLY ASSOCIATING COPOLYMERS AND SURFACTANTS AND USE THEREOF FOR MINERAL OIL PRODUCTION
AQUEOUS FORMULATIONS OF HYDROPHOBICALLY ASSOCIATING COPOLYMERS AND SURFACTANTS AND USE THEREOF FOR MINERAL OIL PRODUCTION
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机译:疏水缔合的共聚物和表面活性剂的水溶液配方及其在矿山石油生产中的用途
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摘要
Process for petroleum recovery, in which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer (A) and at least one non-ionic and/or anionic surfactant (B) is injected through at least one injection borehole into a petroleum reservoir and crude oil is taken from the reservoir through at least one production borehole, wherein the water-soluble, hydrophobically associating copolymer comprises at least acrylamide or derivatives thereof, a monomer having anionic groups and also a monomer which can bring about association of the copolymer, and also an aqueous formulation suitable for carrying out the process.
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