CAJ | 학술논문

将SS、SHSA-HN6两种表面活性剂和KYPAM、ZL-Ⅱ型两种聚合物以及弱碱Na2 CO3进行复配，对复配体系进行黏弹性研究、界面张力的评价以及在纵向非均质人造岩心上进行物理模拟驱油实验，从各种复配体系中选出最佳的弱碱三元复配体系应用于现场试验。结果表明，每种复配体系的黏度都随剪切速率的增大而下降，不同类型的活性剂基本不影响KYPAM 三元复合体系的黏度，而对ZL-Ⅱ型三元复合体系的黏度却有所影响。不同复配体系的弹性都随着剪切速率的增加而增加，几种复配体系的弹性基本相同。4种复配体系均在15 min内达到超低界面张力，且稳态界面张力都保持在超低范围内，两种表面活性剂都有较好的降低界面张力的能力。在驱油效果评价上，SS所形成的三元体系驱油效果均好于SHSA-HN6所形成的三元体系，KYPAM 和ZL-Ⅱ型两种聚合物的三元复合体系的驱油效果KYPAM 的占优。
장SS、SHSA-HN6량충표면활성제화KYPAM、ZL-Ⅱ형량충취합물이급약감Na2 CO3진행복배，대복배체계진행점탄성연구、계면장력적평개이급재종향비균질인조암심상진행물리모의구유실험，종각충복배체계중선출최가적약감삼원복배체계응용우현장시험。결과표명，매충복배체계적점도도수전절속솔적증대이하강，불동류형적활성제기본불영향KYPAM 삼원복합체계적점도，이대ZL-Ⅱ형삼원복합체계적점도각유소영향。불동복배체계적탄성도수착전절속솔적증가이증가，궤충복배체계적탄성기본상동。4충복배체계균재15 min내체도초저계면장력，차은태계면장력도보지재초저범위내，량충표면활성제도유교호적강저계면장력적능력。재구유효과평개상，SS소형성적삼원체계구유효과균호우SHSA-HN6소형성적삼원체계，KYPAM 화ZL-Ⅱ형량충취합물적삼원복합체계적구유효과KYPAM 적점우。
The two surfactants (SS ,SHSA-HN6) and two polymers (KYPAM ,ZL-Ⅱ) compound with Na2 CO3 was made , then study on the viscoelasticity of multisystem ,evaluate the interfacial tension of multisystem and do physical oil displacement experiments with heterogeneous artificial cores .The optimal multisystem was then selected among various systems as the one to be applied in the field test .The results show that :Along with the increase of shear rate ,the viscosity of each multisystem decreases ,but the decline phase is not obvious .The elasticity of different systems increases along with the increase of shear rate and the superposition of elasticity points indicate they have good match .Four systems are all achieve ultra-low interfacial tension in five minutes , and the steady interfacial tension will remain low . SS is better than SHSA-HN6 in decreasing interfacial tension ,and the surface tension stability of KYPAM ternary system is much better than ZL-Ⅱternary system .From the perspective of flooding effect evaluation ,the chemical flooding recovery of KYPAM ternary system is higher than ZL-Ⅱternary system ,the oil displacement efficiency of SS ternary system is better than SHSA-HN6 ternary system .