盐家油田永921块沙四上砂砾岩储层特征研究  

Characterization of the upper sub-member of Shu 4 glutenitc reservoir in Mock Yong-921,Yanjia oilfield

作　　者：王艳红[1,2] 袁向春[1] 范二平[3] 薛峰 

机构地区：[1]中石化石油勘探开发研究院,北京100083 [2]中国石油大学,北京102249 [3]中国地质大学,北京100083 [4]振华石油控股有限公司,北京100031

出　　处：《特种油气藏》2014年第1期31-34,152,共4页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金"陆相湖盆斜坡带顺坡流与沿坡流相互作用机理及沉积构型响应"(41072084)

摘　　要：应用岩心、薄片、扫描电镜和生产数据等资料,对盐家油田永921块沙四上亚段储层特征及控制因素进行分析。结果表明:沙四上亚段主要为砂砾岩体储层,孔隙类型以次生孔隙为主,属于低孔低渗储层,共划分为5类砂砾岩储层,它们在纵、横向上分布差异较大。储集性能受沉积、岩性和成岩作用的控制,沉积作用和岩性特征是影响储层的决定性因素,压实和胶结作用导致该区储层物性变差,溶蚀作用对储层有明显改善作用。By use of data and information of core,thin section,SEM and production,the characteristics and controlling factors of the upper sub- member of Shu 4 glatenite reservoir in Block Yong-921,Yanjia oilfield are analyzed.It is indicated from the results that the upper sub- member of Sha 4 formation is mainly a glulenite reservoir.With secondary pores predominated,it is a low porosity low permeabilily reservoir,which can he divided into 5 types,greally different in areal and vertical distribution.The reservoir property is controlled! by deposition,lithology and diugenesis.Deposition and lithologic feature are the deterministic- factors affecting upon reservoir,compaction and cementation led to worsening of reservoir physical property in the area,and dissolution had obviously enhanced the reservoir quality.

关 键 词：砂砾岩 储层特征 主控因素 沙四上亚段 盐家油田 

分 类 号：TE122.2[石油与天然气工程—油气勘探]