用含油薄片研究剩余油微观分布特征  

Using oil-bearing thin section to study microscopic distribution feature of remaining oil.

作　　者：王朴[1] 蔡进功[1] 谢忠怀[1] 田方[1] 何洪[1] 

机构地区：[1]胜利油田有限公司地质科学研究院

出　　处：《油气地质与采收率》2002年第1期60-61,共2页Petroleum Geology and Recovery Efficiency

基　　金：中石化集团"十条龙"攻关项目 (P980 2 5 )

摘　　要：以胜坨油田二区沙二段砂岩油层岩性、孔隙分布及结构的研究资料为依据 ,用含油薄片分析了该区沙二段砂岩油层剩余油微观分布特征及其影响因素。分析结果表明 ,剩余油分布有珠状、凝块状、环状、连片状、条带状等六种形态 ;影响剩余油分布的因素主要有岩石的层理、孔隙结构、岩石的结构成分及其润湿性。提出了先驱替底部剩余油 。Microscopic distribution feature and its influencing factors of the remaining oil in Es\-2 sandstone reservoirs of No.2 area in Shengtuo oilfield are analyzed using oil-bearing thin section on the basis of data on lithology, porosity distribution and structure in this area. The results show that the distribution of the remaining oil has five forms of bead-, clot-, ring-, sheet and belt-like; the main influencing factors are bedding, porosity structure, composition and wettability of the rock. This paper makes proposals for displacing the bottom remaining oil first and then injecting plugging agent to control upward encroachment by bottom-water and enhance oil recovery of the upper reservoir.

关 键 词：含油薄片 胜坨油田 高含水砂岩油层 剩余油 微观分布特征 

分 类 号：TE327[石油与天然气工程—油气田开发工程]