摘要
在聚合物驱过程中，采出液中有时含有一定浓度和较大相对分子质量的聚丙烯酰胺，使溶液粘度增加。为了净化水质，便于污水再利用，需要破坏聚合物分子链，降低水溶液的粘度。通过测定体系的粘度损失值，研究了Ｆｅ２＋，Ｓ２Ｏ２－８等物质对聚合物的降解作用，考察了降解剂浓度、温度、酸度等因素对反应的影响。在４５℃条件下，当体系中Ｓ２Ｏ２－８，Ｆｅ２＋质量浓度分别为７０ｍｇＬ－１和１０ｍｇＬ－１时，１ｈ内可使质量浓度为２００～２０００ｍｇＬ－１的聚合物溶液粘度损失达９０％以上。
Produced fluids in the polymer flood are composed mainly of high concentration and high molecular mass polyacrylamide. The fluids have higher viscosity than pure water. To purify and reutilize the polluted water, the high molecular mass polymer should be degrated, viscosity of polluted water should be decreased. By means of measuring the loss of viscosity of polymer solution, the experiments were conducted which showed the effect of Fe 2+ and S 2O 2- 8 concentration, temperature and pH on the degradation reaction.At 45 ℃, when the concentration of S 2O 8 is 70.0 mg·L -1 , that of Fe 2+ is 10.0 mg·L -1 and that of polyacrylamide ranging from 200 mg·L -1 to 2 000 mg·L -1 ,the viscosity loss is as great as more than 90.0 percent within 1 hour.
出处
《大庆石油学院学报》
EI
CAS
北大核心
1997年第1期49-52,共4页
Journal of Daqing Petroleum Institute
关键词
聚丙烯酰胺
亚铁离子
降解
过二硫酸盐
聚合物驱
polyacrylamide, ferrous compound, degradation, peroxydisufate, polymer flood, water treatment
