稠油降粘剂的合成及其作用机理分析

SYNTHESIS OF A VISCOSITY REDUCER AND ITS MECHANISM ANALYSIS

稠油中沥青质及胶质的含量高 ,凝固点及粘度高 ,对稠油的生产、运输都比常规原油困难 ,所以对稠油降粘剂的研究及其作用机理探讨具有重要意义。用苯乙烯 (S)、甲基丙烯酸甲酯 (MMA)及丙烯酰胺 (AM )在一定温度、溶剂条件下进行聚合 ,然后与高碳醇进行酯交换反应 ,得到三元共聚酯化物—梳状聚合物。性能评价实验结果表明 ,根据稠油特点进行分子设计 ,合成出的降粘剂具有良好的降粘效果。讨论了合成条件 (如温度、合成时间、原料配比、引发剂用量等 )对产品降粘效果的影响 。

The production and transportation of viscous crude are more difficult than normal crude oil because the high content of asphaltene and gum. A comb polymer-terpolymer ester is obtained by polymerizing styrene (S), methyl metharylate (MMA) and acrylamide (AM) then the produced terpolymer reacts with a higher alcohol (ester exchange). Results of evaluation on performance have showed that the comb polymer has good viscosity-reducing effect. The influence of synthetic conditions on the viscosity-reducing effect has been discussed and the mechanism of the viscosity reducer has been analyzed.