The permeability of tight gas reservoirs is seriously reduced because of the aqueous phase trapping ( water and oil), and the damage extent is closely related to permeability of the reservoir, interface tension, surface wettability and initial water saturation. 致密天然气层主要因液相(水与原油)聚集而损害渗透率,损害程度与储集层渗透率、界面张力、表面润湿性、初始含水饱和度的关系极为密切;
The surface adsorption and micelle formation of the mixed anionic Gemini surfactant ( C9pPHCNa) and cationic conventional surfactant ( C10TABr) aqueous solutions have been investigated by surface tension method. 羧酸盐Gemini表面活性剂C9pPHCNa与季铵盐表面活性剂十烷基三甲基溴化铵(C10TABr)混合水溶液的胶团生成能力、降低水表面张力的能力和效率均出现明显的增效。
The surface activity and micellar behavior of the copolymers in aqueous solution were studied by surface tension method and fluorescence probe method. 利用表面张力和荧光探针法研究了共聚物水溶液的表面活性性能,确定了其临界胶束浓度(CMC)。
Aggregation behavior, surface activity and stability of P ( AM/ VHGE) copolymer in aqueous solution as a function of temperature, salinity and pH were studied by the measurement of surface tension, dynamic laser light scattering and viscosity. 通过表面张力、动态光散射和粘度测试研究了共聚物PAMVHGE的表面活性、溶液聚集行为、聚合物的稳定性,并考察了温度、盐度和pH对聚合物性质的影响。
With the experiments of different interfacial activity of alkali to aqueous surfactant solution, several kinds of different combination of surfactant/ alkali are selected, interfacial tension value are all under 10-3mN/ m order of magnitude. 通过不同碱对表面活性剂溶液界面活性的影响实验,筛选出几种界面张力值在10-3mN/m数量级以下的表面活性剂/碱剂组合。
Tensiometer is used to measure the surface tension of water and LiBr aqueous solution at room temperature. The experimental value of surface tension is close to the value from literatures. 采用表面张力仪测量了常温下水、质量分数为60%的溴化锂水溶液的表面张力,与文献中的测量值接近。