论文部分内容阅读
根据岩性和电性特征 ,对胜利油田王家岗地区下第三系沙四段砂岩储集层的类型及分布进行了研究。研究结果表明 ,王家岗地区沙四段自上而下可划分为 4个砂层组和蓝灰段 ,其中第三和第四砂层组为主要砂岩储集层发育段。根据地质、地震和测井相资料 ,又将第三砂层组划分为 7种沉积微相 ;第四砂层组划分为 6种沉积微相。研究还表明 ,该地区的砂岩储集层分为中孔中渗、中孔低渗和低孔低渗 3种储集层类型 ,其中以低孔低渗储集层为主 ,其储集层物性主要受沉积相类型和成岩作用所控制
Based on the lithology and electrical characteristics, the type and distribution of sandstone reservoirs in the Es4 Member of the Lower Tertiary in Wangjiagang area, Shengli Oilfield were studied. The results show that the sandstones in the Wangjiagang area can be divided into four sandstone groups and the blue-limestone from top to bottom. The third and fourth sandstone groups are the main sandstone reservoir developmental segments. Based on the data of geology, earthquake and logging, the third sand layer is divided into seven sedimentary microfacies; the fourth sand layer is divided into six sedimentary microfacies. The study also shows that the sandstone reservoirs in this area are divided into three types of reservoir types: mesopore medium permeability, mesoporous low permeability and low porosity and permeability, of which the reservoir with low porosity and low permeability is the main reservoir and the reservoir Physical properties are mainly controlled by sedimentary facies and diagenesis