摘要
城华斜坡带油田位于陕甘宁盆地南端 ,延安组是一套在延长组古侵蚀面上形成的网状～曲流河沉积 ,该区标志层明显 ,旋回特征清晰 ,主要油组是延 8～延 10。着重讨论了城华地区延安组延 8～延 10储层孔隙度和渗透率的分布以及与沉积微相的关系、储层的分类、不同类型储层的孔隙结构和物性特征之间的关系。研究结果表明 :储层渗透率的分布严格受沉积微相和岩相的控制 ;不同岩相的储层物性相差很大 ,对应着不同的储层类型 ;
Cheng-hua slope oil field is located in the south of the shan gan ning basin, the braided and meandering river deposition of yan- an formation is overlying on the old erosion surface of yan-chang formation, the area is characterized by apparent mark layers and recycle, main pay zones areY8-Y10members. The relation between the distribution of prosity and permeability and sedimentary micro-facies, classifications of reservoir and relations between pore structure characteristic and physical property are mainly discussed in the paper.
出处
《西南石油学院学报》
CSCD
2000年第2期15-17,共3页
Journal of Southwest Petroleum Institute
关键词
储集层特征
油层物性
沉积微相
岩相
reservoir characteristics, reservoir physical property, sedimentary micro-facies, lithofacies, Yan-An formation reservoir
