Preliminary study on mechanisms and oil displacement performance of cationic starch

被引：7
|
作者：
Yang Haicun [1 ]
Zhu Weiqun [1 ]
Sun Ning [1 ]
Zhao Yunfei [1 ]
Liu Xin [1 ]
机构：
[1] Shandong Univ, Key Lab Colloid & Interface Chem, Educ Minist, Jinan 250100, Peoples R China
来源：
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2009年 / 65卷 / 3-4期
关键词：
Cationic starch; Oil displacement experiment; Recovery efficiency; Zeta potential; IN-WATER EMULSION; ADSORPTION; BEHAVIOR;
D O I：
10.1016/j.petrol.2008.12.032
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：
In this paper, the oil displacement performance of cationic starch was investigated. The results show that cationic starch has good efficiency of oil displacement. Using microscopic electrophoresis apparatus, the effect of cationic starch on zeta potential of crude oil emulsion at different pH values and electrolytical concentrations was studied. The results show that cationic starch can reduce negative charges of oil droplets surface and make the charges reversed. This action will be restrained when acidity or electrolytical concentration increases. Ordinary starch has inefficacy of oil displacement and shows no effect on zeta potential of the oil-water emulsion. The oil displacement mechanism of cationic starch was studied preliminarily from the interactions existing between cationic starch and crude oil. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：188 / 192
页数：5
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