聚合物驱采出污水深度处理的实验研究

Study on advanced produced water treatment experiments of polymer flooding

马占林 陈兴原 李天德

Ma Zhanlin Chen Xingyuan Li Tiande

大庆油田有限责任公司第四采油厂, 黑龙江大庆 163511

No.4 Oil Recovery Plant, Daqing Oilfield Co. Ltd., Daqing 163511

以大庆某采出液处理站含聚污水为研究对象,应用UV/H2O2/O3组合对二次除油、过滤后的污水进行了处理实验,实验分析了H2O2、O3投加量、紫外灯强度、初始pH值以及处理时间对HPAM去除率影响,确定了合理的组合参数量;结合初始污水中含油量变化对聚合物和污油去除率的影响进行了实验,确定了初始污水含油量范围。并对处理前后污水对岩心渗透率伤害程度进行实验,结果表明,应用高级氧化处理技术处理后的含聚污水水质可以满足污水回注油层要求,在现场比较经济可行。

Based on the study of polymer-bearing produced water from a produced water treatment station in Daqing Oilfield, a produced water treatment experiment has been done to produced water after secondary degreasing and filtering.Rational combined parameters have been confirmed by the analysis of addition of H2O2 and O3, intensity of UV Lamp, the initial pH value as well as influences of treatment time on HPAM.Experiments has been done on influences of the oil content changes on polymer and waste oil elimination ratio, and then the range of oil-bearing content of original waste water has been confirmed.Experiments of damaging degree of produced water to core permeability before and after treatment show that it is economically feasible to use advanced Oxidation Treatment Technology because the water quality after treatment can meet the requirements of produced water reinjection.

国家攻关项目"大庆油田开发关键技术研究"(2003~2008BA613A-06)子课题内容。

https://doi.org/10.3969/j.issn.1008-2336.2010.01.081