摘要
分析敖南油田葡萄花油层储层岩石学、储层物性及微观孔隙结构特征,揭示葡萄花油层属中孔、低渗储层,孔隙类型主要为原生粒间孔、粒间扩大孔,储层微观孔隙结构差异较大,孔喉分布不均匀.同时,选取渗透率、孔隙度、平均孔隙半径、分选系数、特征结构参数、排驱压力、饱和度中值压力7个参数,应用聚类分析方法,对葡萄花油层储层进行分类,其中Ⅰ类储层为最好,Ⅱ类储层次之,Ⅲ类储层最差.
Research on the lithology,physical characteristics and microcosmic pore structure of the reservoir of Putaohua oil layer indicate that the reservoir belongs to the one with medium porosity and lower permeability.It is mainly made up of crude intergranular pore and intergranular extended pore.The microstructure is obviously different and the pore throat is very inhomogeneous.Based on seven parameters as permeability,porosity,average pore radius,sorting coefficient,structural parameter,displacement pressure and median capillary pressure,the reservoir is divided into three types by Cluster Analysis.The results can be applied to direct Aobaota oilfield exploration and development on Putaohua oil layer effectively.
出处
《大庆石油学院学报》
CAS
北大核心
2007年第4期10-12,共3页
Journal of Daqing Petroleum Institute
关键词
敖南油田
葡萄花油层
孔隙结构
储层评价
Aobaota Oilfield
Putaohua oil layer
pore structure
reservoir evaluation
