摘要
研究了季铵盐型表面活性剂的驱油机理 :表面张力和界面张力、表面润湿性、表面电性。认为在用季铵盐型表面活性剂驱油时 ,存在低界面张力机理 ,润湿反转机理和表面电性反转机理。在驱油剂浓度达到 6 0 0mg·L-1时 ,采收率可提高 5 %～ 6 %。可以推测 ,具有吸附性的阳离子表面活性剂都可有这几种驱油机理 ,并具有一定的驱油潜力。
Oil displacement mechanism of quaternary cationics has been studied in several ways: surface and interface tension, wettability, surface electrical behavior. It's thought that there has been low interface tension mechanism, wetting conversion mechanism and surface electrical conversion mechanism while displaced by the surfactants. When the concentration of the surfactants is as high as 600 mg· L^(-1), the oil recovery increment of 5%-6% is available. It is expectable that cationic surfactants with adsorbance property probably have such mechanisms in oil displacement, and have some potentiality.
出处
《西南石油学院学报》
CSCD
2003年第6期43-45,共3页
Journal of Southwest Petroleum Institute
关键词
季铵盐
表面活性剂
低界面张力
润湿反转
表面电性反转
quaternary cationics
low interfacial tension
wetting conversion
surface electrical conversion
