The role of CO2 and ion type in the dynamic interfacial tension of acidic crude oil/carbonated brine

被引：0

作者：

Mostafa Lashkarbolooki ^{[1
]}

Ali Zeinolabedini Hezave ^{[2
]}

Shahab Ayatollahi ^{[3
]}

机构：

[1] School of Chemical Engineering, Babol Noshirvani University of Technology

[2] Incubation Centre of Science and Technology Park, Fanavari Atiyeh Pouyandegan Exir Company 3. School of Chemical and Petroleum Engineering, Sharif University of Technology

来源：

Petroleum Science | 2019年 / 16卷 / 04期

关键词：

Carbonated brine; Interfacial tension; Crude oil; Enhanced oil recovery(EOR); CO2; sequestration;

D O I：

暂无

中图分类号：

TE39 [油田应用化学];

学科分类号：

082002 ;

摘要：

The e ects of COand salt type on the interfacial tension(IFT) between crude oil and carbonated brine(CB) have not been fully understood. This study focuses on measuring the dynamic IFT between acidic crude oil with a total acid number of 1.5 mg KOH/g and fully CO-saturated aqueous solutions consisting of 15,000 ppm of KCl, NaCl, CaCland MgClat 30 °C and a wide range of pressures(500–4000 psi). The results of IFT measurements showed that solvation of COinto all the studied aqueous solutions led to an increase in IFT of acidic crude oil(i.e., comparison of IFT of crude oil/CB and crude oil/brine), while no significant e ect was observed for pressure. In contrast, the obtained results of studied salts indicated a positive e ect on the IFT reduction of acidic crude oil/carbonated water(CW)(i.e., comparison of IFT of crude oil/CB and crude oil/CW).

引用

页码：850 / 858

页数：9

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