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PROCESS FOR THE ENHANCED RECOVERY OF OIL BY INJECTION OF A POLYMER SOLUTION
PROCESS FOR THE ENHANCED RECOVERY OF OIL BY INJECTION OF A POLYMER SOLUTION
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机译:通过注入聚合物溶液来提高石油采收率的过程
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摘要
Process for enhanced oil recovery employing an aqueous solution comprising at least one linear or structured water-soluble copolymer obtained by polymerization: - of at least 10 mol% of 2-acrylamido-2-methylpropanesulfonic acid monomer in the free acid and/or salified form, - of at least 10 mol% of at least one comonomer chosen from the group consisting of acrylamide, N-vinylpyrrolidone (NVP) and acrylamide-derived monomers of formula (I): R = H or CH3 or CH2COOR', where R' is an alkyl comprising at most 3 carbon atoms, A is an N heterocycle comprising, in its ring, from 4 to 6 carbon atoms and optionally an ether functional group or a ketone functional group.
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机译:使用包含至少一种通过聚合获得的线性或结构化水溶性共聚物的水溶液来提高采油率的方法:-至少10 mol%的游离酸和/或成盐形式的2-丙烯酰胺基-2-甲基丙烷磺酸单体-至少10摩尔%的至少一种选自由丙烯酰胺,N-乙烯基吡咯烷酮(NVP)和由丙烯酰胺衍生的式(I)的单体的共聚单体:R = H或CH 3或CH 2 COOR',其中R' R 1是包含至多3个碳原子的烷基,A是在其环中包含4至6个碳原子和任选地醚官能团或酮官能团的N杂环。
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