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

被引：17
|
作者：
Lashkarbolooki, Mostafa [1 ]
Hezave, Ali Zeinolabedini [2 ]
Ayatollahi, Shahab [3 ]
机构：
[1] Babol Noshirvani Univ Technol, Sch Chem Engn, Babol Sar, Iran
[2] Fanavari Atiyeh Pouyandegan Exir Co, Incubat Ctr Sci & Technol Pk, Arak, Iran
[3] Sharif Univ Technol, Sch Chem & Petr Engn, Tehran, Iran
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; CARBONATED WATER INJECTION; OIL-RECOVERY; SALINITY; PERFORMANCE; SEQUESTRATION; TEMPERATURE; ASPHALTENE; PRESSURE; DIOXIDE; STORAGE;
D O I：
10.1007/s12182-019-0310-1
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：
The effects of CO2 and 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 CO2-saturated aqueous solutions consisting of 15,000 ppm of KCl, NaCl, CaCl2 and MgCl2 at 30 degrees C and a wide range of pressures (500-4000 psi). The results of IFT measurements showed that solvation of CO2 into 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 effect was observed for pressure. In contrast, the obtained results of studied salts indicated a positive effect 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
收藏
页码：850 / 858
页数：9
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