聚合物作为稠油降粘剂的实验研究

Study on polymer viscosity reducers of viscous crude oil

绥中36-1油田稠油蜡含量低，而胶质和沥青质含量高，40℃下脱气原油粘度高达56200mPa·s。为解决绥中36-1油田稠油开采中的问题，室内用苯乙烯、（甲基）丙烯酸高碳醇酯、丙烯酰胺／马来酸酐合成了三元共聚物降粘剂，并在稠油中进行了降粘性能评价。实验结果表明，合成的HOT-RP聚合物降粘剂对绥中36-1稠油具有良好的降粘效果，在加量为500～800mg／L时，其降粘率大于85％。

The viscous crude oil from Suizhong 36-1 oilfield with low content of wax,high content of gum and asphaltene, the viscosity of degassed crude oil is 56 200 mPa · s at 40℃. With respect to the problem of viscosity-reduction of viscous crude oil recovery, a kind of viscosity reducer comprising styrene/higher alcohol （methyl-） acrylate/acrylamide or maleic anhydride terpolymer was synthesized, and it＇ s ability of viscosity reducing was evaluated. Results show that the synthesized polymer viscosity reducer HOT-RP had good viscosity reduction effect, its viscosity-reducing rate is over 85% at dosage of 500 ～800 mg/L.