特高含水期剩余油孔道选择微观机理研究  

Micro-pore Path Selection Mechanism of Remaining Oil at Ultra-high Water-cut Stage

作　　者：刘浩瀚[1,2] 刘志斌[3] 丁显峰[4] 

机构地区：[1]西南石油大学石油工程学院,四川成都610500 [2]四川建筑职业技术学院计算机工程系,四川德阳618000 [3]西南石油大学研究生学院,四川成都610500 [4]西南石油大学理学院,四川成都610500

出　　处：《石油天然气学报》2013年第5期92-97,7-8,共6页Journal of Oil and Gas Technology

基　　金：高等院校博士点基金资助项目(20095121110003)

摘　　要：特高含水期剩余油多以分散状分布于毛细管道中,微观因素影响明显。以特高含水期剩余油滴为研究对象,对孔隙网络模型中的油滴进行微观受力状态分析;建立微观孔道半径与剩余油滴受力关系方程;选取一般化微孔隙结构研究剩余油滴选择毛细管孔道的机理。这对认识特高含水期剩余油可动量,确保油田稳产上产及提高采收率意义重大。The remaining oil at ultra-high water-cut stage was dispersedly distrituted in capillary and the effect of microfactors on remaining oil distribution was apparent.The remaining oil droplets in ultra-high water cut stage were used as an object to analyze the applied force condition in the pore network model,and an equation of the relation between capillary radius and applied force was established.By selecting a common micro-pore structure,the micro capillary selection mechanism of remaining oil droplet at ultra-high water cut stage was studied in details.It is of great significance for recognizing recoverable reserves of remaining oil at ultra high water-cut stage,ensuring the stable and high oil production.

关 键 词：特高含水期 孔隙网络模型 微观受力 孔道选择 

分 类 号：TE327[石油与天然气工程—油气田开发工程]