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本文从水力压裂入手,首先合成了水溶性聚合物(AM/AMPS/MA),采用了AM,AMPS,MA的三元共聚,氧化还原体系作为引发剂,水溶性聚合。对合成条件进行了分析和研究,探讨了单体,温度,引发剂,时间,pH对聚合物粘度的影响,并运用正交实验筛选出了最佳条件。合成出一种抗高温、耐剪切的新型压裂液稠化剂,合成条件:AMPS比例20%;反应时间6h;反应温度50℃;通氮气保护;pH=6～7。通过实验的研究分析,合成出的压裂液的增稠剂,在耐温,抗盐方面有良好的性能。
Starting with hydraulic fracturing, the first water-soluble polymer (AM / AMPS / MA) was synthesized using ternary copolymerization of AM, AMPS and MA, a redox system as initiator, and water-soluble polymerization. The synthesis conditions were analyzed and studied. The effects of monomer, temperature, initiator, pH and pH on the viscosity of polymer were discussed. The optimum conditions were screened by orthogonal experiment. Synthesis of a high temperature, shear resistant new fracturing fluid thickener, synthesis conditions: AMPS ratio of 20%; reaction time 6h; reaction temperature 50 ℃; pass nitrogen protection; pH = 6 ~ 7. Through experimental research and analysis, the synthesized thickener of fracturing fluid has good performance in temperature resistance and salt resistance.