摘要
采用孔道壁面亲水和亲油的两种微观孔隙物理模型,在水驱和聚合物驱之后接着进行表面活性剂稀溶液驱,利用显微录像和照相技术研究了表面活性剂稀溶液的驱油机理。研究结果表明聚合物驱之后进行表面活性剂驱油仍是有效的。
The mechanisms of oil displacement by dilute surfactant (a petroleum sulfonate) solution in water-and oil-wet microscopic models after polymer flood having been finished are studied by the help of microvideo and microphotographic techniques. It is shown that surfactant flood is still effective for EOR after polymer flood performed. In both the water- and oil-wet micromodels, emulsification and deformation modes of transfer of residual oil arc obscrved and in the oil-wet model, residual oil transfer along the boundary oil layers with leaps at oil film interruptions is observed additionally.
出处
《油田化学》
CAS
CSCD
北大核心
1997年第1期66-68,共3页
Oilfield Chemistry
关键词
表面活性剂驱油
石油
驱油机理
物理模型
Surfactant Flood, Dilute Surfactant Solution Flood, Oil Displacement Mechanisms, Microscopic Physical Model for Porous Media, Polymer-Flooded Reservoirs
