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Oilfield flooding polymer

机译:油田驱油聚合物

摘要

A monomer, polymers containing the monomer, and the use of the polymer in oilfield flooding is disclosed. The subject monomer is represented by the general formula: ##STR1## wherein: n is an integer from 0 to about 4; m is an integer from 0 to about 6; a is an integer equal to at least 1 except where m is equal to 0, a must equal 0 and where m is equal to 1, a must equal 0 or 1; p is an integer from 2 to about 10; b is an integer equal to at least 1 and is of sufficient magnitude that the ratio b/p is at least 0.2; and q is an integer from 0 to 2. The number of hydroxy groups in the monomer is believed to be critical, and therefore the sum of (a+b) divided by the sum (m+p) should be at least 0.2. The moieties linked to the acrylic nitrogen can be joined to provide a ringed structure.
机译:公开了一种单体,包含该单体的聚合物以及该聚合物在油田驱油中的用途。本单体由通式表示:其中n是0至约4的整数; n是0至约4的整数。 m是0至约6的整数; a是至少等于1的整数,除了m等于0,a必须等于0,m等于1,a必须等于0或1之外; p是2至约10的整数; b是至少等于1的整数,并且其大小足以使比率b / p至少为0.2。并且q是0至2的整数。单体中的羟基数目被认为是关键的,因此(a + b)之和除以(m + p)之和应至少为0.2。与丙烯酸氮连接的部分可以连接以提供环状结构。

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