摘要
对不同聚合物和聚合物表面活性剂物理性能进行评价,初步筛选出聚合物超高分子量Ⅱ和聚合物表面活性剂JBJX-1作为驱油剂。考察了这两种驱油剂的长期热稳定性、耐温抗盐性、界面流变性及岩心吸附量;岩心驱替实验表明,超高分子量Ⅱ比JBJX-1注入性好;建议选择超高分子量Ⅱ,浓度为2 000-2 500mg/L,注入量为0.6 PV,在古城油田B125区块开展矿场试验。
The physical properties of different polymers and polymeric surfactants were evaluated. And ultra-high molecular weight polymer Ⅱ and polymeric surfactant JBJX-1 were primarily selected as oil-displacing agent. The long-term thermal stability,heat-resistance and salt-tolerance,interfacial rheological property,and core-adsorptive capacity of the two oil-displacing agents were studied. The core-flooding experimental results showed that the injectability of ultra-high molecular weight polymer Ⅱ was better than that of polymeric surfactant JBJX-1. It was suggested that 2 000-2 500 mg /L and 0. 6 PV ultra-high molecular weight polymer Ⅱ could be used in field application at B125 block in Gucheng oilfield.
出处
《精细石油化工进展》
CAS
2014年第5期20-24,共5页
Advances in Fine Petrochemicals
关键词
驱油剂
河南油田
聚合物表面活性剂
性能评价
提高采收率
oil-displacing agent
Henan Oilfield
ultra-high molecular weight polymer
polymeric surfactant
enhanced oil recovery
