辽河西部凹陷欢50块杜家台油层储集岩特征  

PROPERTIES OF RESERVOIR ROCKS IN DUJIATAI OIL FORMATION, BLOCK HUAN 50, WESTERN LIAOHE DEPRESSION

作　　者：陈和平[1] 杨周平[1] 高洁[1] 郭建华[2] 

机构地区：[1]辽河石油勘探局勘探开发研究院,辽宁盘锦124000 [2]江汉石油学院,湖北荆州434102

出　　处：《石油实验地质》1997年第4期363-367,共5页Petroleum Geology & Experiment

摘　　要：研究区杜家台油层的储集砂体属近源、快速堆积的扇三角洲成因，主要的储集岩石类型包括细砾岩类、不等粒砂岩类、砂岩类及粉砂岩类。不同岩石类型其物性特征差异较大，岩样分析结果表明，储集岩主要属中低渗透储层，其岩性、物性、电性及含油性具有一定的对应关系，面孔隙度与渗透率也具有较好的正相关性。另外，储集岩石类型的展布明显地受沉积微相的控制。The reservoir sandbody of Dujiatai oil formation in the study area can be genetically attributed to anear--sourced and rapidly accumulated fan delta. The main types of reservoir rocks include fine gravelstone, inequigranular sandstone, sandstone and siltstone. Different types of rocks differ significantly inphysical properties. The analytical results of rocks with such a genesis can be middle--low permeabilityreservoirs, and there exists a certain correlative relation among their lithologic characteristics, physicalproperties, electricity and oil potentials; moreover, a direct correlation between porosity and permeabilityis recognized. Obviously the distribution of the reservoir rocks are controlled by sedimentary microfacies.

关 键 词：储集岩 物性分析 沉积微相 油层 

分 类 号：P618.130.2[天文地球—矿床学]