文13北块低阻油层特征及其成因分析  

Characteristics and Genesis Analysis of Low-resistivity Reservoirs in Wen13 North Oilfield

作　　者：王胜利[1] 

机构地区：[1]中国地质大学(北京),北京100083

出　　处：《重庆科技学院学报（自然科学版）》2010年第4期1-3,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

摘　　要：储层岩石性质偏细,泥质含量高,亲水,从而导致地层束缚水含量高,是文13北块块低阻油层形成的重要内在因素。油质轻、油气比高、油水流动性强及地层水高矿化度是该块低阻油层形成的重要外在因素。构造平缓、油气藏高度低、油水分异程度差是控制低阻油层平面分布范围的重要地质因素。The article summarizes the geologic characteristics and genesis of low-resistivity reservoirs in the Wen13 north oilfield.The inner causes of the low resistivity includes the followings： smaller size of rock,high shale content,high irreducible water owing to water wetting.The external causes includes the followings： light oil,high oil-gas ratio,high fluidity of oil-water and high mineralized formation brines.There are important geological factors to control plane distribution range,including gentle structure,low height oil-gas reservoirs,bad differentiation between oil and water.

关 键 词：低阻油层 孔隙结构 束缚水饱和度 流体 

分 类 号：TE121[石油与天然气工程—油气勘探]