摘要
为完善三元复合驱油机理,利用界面扩张流变测量方法,研究了NaOH-HABS-HPAM三元体系的界面扩张性质,分析了该三元体系界面扩张性质与乳化、界面张力和驱油效率的相关性。结果表明,NaOH-HABS-HPAM三元体系的界面扩张模量随频率增大而增大,而相角随频率的增大而降低。在高频处,HABS-HPAM二元体系的界面扩张模量最大,三元体系的界面扩张模量低于二元体系的,但高于HABS的。HABS-HPAM二元体系的相角为负值,HABS的相角最大,三元体系的相角低于NaOH-HABS二元体系的,表明三元体系的界面膜弹性最强。NaOH-HABS-HPAM三元体系的乳化时间、乳化率、乳状液稳定性和界面张力平衡时间与界面扩张模量成正比例关系变化,但油-水界面张力、注入压力和驱油效率与界面扩张模量不具相关性。
In order to perfect the mechanism of alkaline-surfactant-polymer（ASP）flooding,the dilational properties of NaOH-HABS-HPAM system were studied by interfacial dilational rheology method.The relationship between interfacial dilational properties and emulsions,interfacial tension and oil displacement efficiency of NaOH-HABS-HPAM system were analyzed.The results showed that interfacial dilational modulus of the ASP system increased and its phase angle decreased with the increase of frequency.At high frequency,the interfacial dilational modulus of HABS-HPAM system was larger than that of NaOH-HABS-HPAM system,while which was higher than that of HABS.For the phase angle,HABS-HPAM system has a negative value,HABS has the largest value,while NaOH-HABS-HPAM system has the value lower than NaOH-HABS system,indicating that the elasticity of interface NaOH-HABS-HPAM system was better than other systems.The interface dilational modulus has direct proportion relationship with emulsification time, emulsification rate and emulsion stability, interfacial tension balance time of NaOH-HABS-HPAM,but there is no relevance between the interface dilational modulus and interfacial tension,injection pressure and enhancement of oil recovery.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2017年第1期177-181,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家科技部重大专项(2011ZX05010-005)资助
关键词
三元复合驱油体系
界面扩张模量
乳化性能
界面张力
驱油效率
alkaline-surfactant-polymer flooding system
interfacial dilational modulus
emulsions properties
interfacial tension
enhancement of oil recovery
