STUDY OF INTERFACIAL TENSION BETWEEN A WEAKLY ALKALINE THREE-COMPONENT FLOODING SYSTEM AND CRUDE OIL, AND EVALUATION OF OIL DISPLACEMENT EFFICIENCY

被引：0

作者：

Cui Maolei ^{[1
,2
]}

Ding Yunhong ^{[3
]}

机构：

[1] Chinese Acad Sci, Inst Porous Flow & Fluid Mech, Langfang 065007, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China

[3] PetroChina Res Inst Petr Exploitat & Dev Langfang, Langfang 065007, Peoples R China

来源：

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2012年 / 48卷 / 01期

关键词：

ultra-low interfacial tension; surfactant; weakly alkaline three-component flooding system;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

We have measured the interfacial tension between Daqing crude oil and a ternary system containing a weak base, S6 surfactant, and a polymer. We have studied the effect of the concentrations of the weak base Na2CO3, S6, and the polymer on the interfacial tension. The results show that a weakly alkaline three-component system reduces interfacial tension better than a nonalkaline two-component system. As the polymer concentration increases, the time required to achieve ultra-low interfacial tension increases. Sodium carbonate not only reduces interfacial tension but also acts as a sacrificial agent to reduce surfactant consumption.

引用

页码：33 / 38

页数：6