摘要
表面活性剂驱油是化学驱的方法之一 ,即在常规注水条件下 ,通过在注入水中加入添加剂来降低油水界面张力 ,改变岩石颗粒表面的润湿性 ,使油膜从岩石面上冲洗下来 ,并在驱替压差的作用下流入生产井 ,从而达到增产的目的。PS表面活性剂具有这种作用 。
Surfactant oil drive is a chemical method of oil drive,characterized by reducing oil water interfacial tension through adding additive in water,changing the wetness of rock grain surface. Then, oil film is rinsed out from rock surface, and moved to production wells by drive pressure difference. Consequently, production of oil increases. PS surfactant is one of the additives which can improve oil recovery. This paper introduced the driving mechanism of PS surfactant presented the evaluation method of improving oil recovery.
出处
《矿物岩石》
CAS
CSCD
北大核心
2002年第4期87-89,共3页
Mineralogy and Petrology
