疏水缔合类聚合物的合成及性能研究
发布时间：2018-09-06 19:03
【摘要】：随着油田三次采油技术的发展,对聚合物驱性能要求提高,疏水缔合类聚合物由于其特殊的结构和良好的性能而受到青睐。论文首先以通过1-溴丙烯(C3H5Br)、N,N-二甲基十六烷基叔胺制备了疏水单体二甲基烯丙基十六烷基溴化铵(DMCs),再以疏水单体与与丙烯酰胺(AM)进行共聚得到缔合聚合物P(DMCs-AM)。通过红外、核磁证明聚合物成功制备。通过单因素法优化得到最佳合成条件。P(DMCs-AM)溶液性能研究表明,P(DMCs-AM)具有较好的抗剪切性能,并且呈现明显的盐增稠和表面活性剂增稠现象,P(DMCs-AM)即便在120℃仍然具有较高的温度保留率,体现出较好的抗温性能。为了进—步提升疏水缔合类聚合物的耐温性能,在二元聚合的基础上引入了单体2-丙烯酰胺基-2-甲基丙磺酸(AMPS)进行三元共聚,得到产物P(DMCs-AM-AMPS)。通过红外、核磁对聚合物结构进行表征,并对聚合物合成过程中的影响因素进行研究。对P(DMCs-AM-AMPS)水溶液性能进行研究,结果表明:引入AMPS单体可以很好的提升疏水缔合类聚合物的抗温性能,在120℃高温条件下,4g/LP(DMCs-AM-AMPS)黏度保留率为25%,要优于同种条件下的P(DMCs-AM)的17%。在此基础上,对三元共聚物的粘弹性、抗盐抗剪切、表面活性剂用量对聚合物性能影响等因素进行了综合研究。通过驱替实验计算了两种聚合物的阻力系数(RF)与残余阻力系数(RRF)。结果表明:相同浓度条件下,P(DMCs-AM-AMPS)有着更好的流度控制和降低岩心渗透率的能力。
[Abstract]:With the development of tertiary oil recovery technology, polymer flooding performance is improved. Hydrophobically associating polymers are favored because of their special structure and good performance. Firstly, the hydrophobic monomer dimethylallyl cetylcetylammonium bromide (DMCs),) was synthesized by 1-bromopropene (C3H5Br) N-dimethylhexadecylammonium bromide (DMCs), and then the hydrophobic monomer was copolymerized with acrylamide (AM) to obtain the associating polymer P (DMCs-AM). The polymer was successfully prepared by IR and NMR. The optimum synthesis conditions. P (DMCs-AM) solution properties were optimized by single factor method. The results showed that P (DMCs-AM) had good shear resistance, and showed obvious salt thickening and surfactant thickening. P (DMCs-AM) still had a high temperature retention even at 120 鈩，
本文编号：2227240
[Abstract]:With the development of tertiary oil recovery technology, polymer flooding performance is improved. Hydrophobically associating polymers are favored because of their special structure and good performance. Firstly, the hydrophobic monomer dimethylallyl cetylcetylammonium bromide (DMCs),) was synthesized by 1-bromopropene (C3H5Br) N-dimethylhexadecylammonium bromide (DMCs), and then the hydrophobic monomer was copolymerized with acrylamide (AM) to obtain the associating polymer P (DMCs-AM). The polymer was successfully prepared by IR and NMR. The optimum synthesis conditions. P (DMCs-AM) solution properties were optimized by single factor method. The results showed that P (DMCs-AM) had good shear resistance, and showed obvious salt thickening and surfactant thickening. P (DMCs-AM) still had a high temperature retention even at 120 鈩，
本文编号：2227240
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