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USE OF HYDROPHOBICALLY ASSOCIATING COPOLYMER AS ADDITIVE IN SPECIFIC OILFIELD APPLICATIONS.
USE OF HYDROPHOBICALLY ASSOCIATING COPOLYMER AS ADDITIVE IN SPECIFIC OILFIELD APPLICATIONS.
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机译:在特定的油田应用中,使用疏水缔合型共聚物作为添加剂。
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摘要
What is proposed is the use of a water-soluble hydrophobically associating copolymer as an additive in the development, exploitation and completion of underground mineral oil and natural gas deposits and in deep drillings, wherein the copolymer comprises (a) at least one monoethylenically unsaturated monomer (a) selected from H2C=C(R1)-R4-O-(-CH2/sub -CH2-O-)k-(-CH2-CH(R3/su p)-O-)i-R5 (I), and/or H2C=C(R1)-O-(-CH2-CH2/su b-O-)k-R2 (II), and (b) at least one monoethylenically unsaturated, hydrophilic monomer (b) different from monomer (a), wherein the copolymer is obtainable through copolymerization of the monomers (a) and (b) in the presence of at least one surfactant (c).
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机译:提出了水溶性疏水缔合共聚物作为添加剂在地下矿物油和天然气矿藏的开发,开采和完工以及在深层钻井中的用途,其中该共聚物包含(a)至少一种单烯键式不饱和单体(a)选自H2C = C(R1)-R4-O-(-CH2 sub> -CH2-O-)k-(-CH2-CH(R3 sup>)-O-)i- R 5(I)和/或H 2 C = C(R 1)-O-(-CH 2 -CH 2 -O-)k-R 2(II),和(b)至少一种单烯键式不饱和亲水单体(b)不同于单体(a),其中该共聚物可通过在至少一种表面活性剂(c)存在下使单体(a)和(b)共聚而获得。
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