CAJ | 학술논문

为了探索一种耐吸附、低张力二元复合体系的界面特性,利用 Texas-500型旋滴界面张力仪以及岩心渗流装置,进行了体系初始界面张力以及模拟地层渗流过程中动态界面张力的测定；通过静态吸附实验明确复合体系中活性剂吸附量以及吸附对界面张力影响。结果表明,新型无碱二元复合体系界面张力在活性剂质量分数低至0.05%、聚合物质量浓度高至2500 mg/L,亦可形成10-3数量级；活性剂吸附量较小,一次吸附后各界面张力依旧可以维持10-3数量级。动态渗流实验结果显示,即使考虑吸附及稀释作用,在距离模型入口端3/5处二元体系动态界面张力依旧可以维持10-3数量级。
위료탐색일충내흡부、저장력이원복합체계적계면특성,이용 Texas-500형선적계면장력의이급암심삼류장치,진행료체계초시계면장력이급모의지층삼류과정중동태계면장력적측정；통과정태흡부실험명학복합체계중활성제흡부량이급흡부대계면장력영향。결과표명,신형무감이원복합체계계면장력재활성제질량분수저지0.05%、취합물질량농도고지2500 mg/L,역가형성10-3수량급；활성제흡부량교소,일차흡부후각계면장력의구가이유지10-3수량급。동태삼류실험결과현시,즉사고필흡부급희석작용,재거리모형입구단3/5처이원체계동태계면장력의구가이유지10-3수량급。
In order to explore the binary composite system interface characteristics of adsorption resistance and low tension, Texas-500 spinning drop interfacial tensiometer and core flow device were used to measure the initial interfacial tension and simulate dynamic interfacial tension.The effect of interfacial tension and adsorption capacity was confirmed through the static adsorption experiments.The results showed that the new E-compound system interfacial tension of 10 -3 orders of magnitude can also be formed when active dosage was as low as 0.05% and polymer concentration was up to 2 500 mg/L.Static adsorption proved that interfacial tension 10 -3 orders of magnitude can be maintained when amount of adsorption agent was little after first adsorption.Dynamic flow experiment results showed that even considering absorption and dilution,dynamic interfacial tension of the binary system can still maintain a 10 -3 orders of magnitude in 0.6 PV.