【摘要】 采用秩相关系数分析等方法,在层序地层等时框架内,定量研究体系域内砂、砾岩储层的纵向变化特征,建立体系域内5种储层非均质定量模式.由于沉积环境,沉积物供给,所经历的构造、成岩演化等方面的差异,储层在空间上表现出不同程度的非均质性.工区内沙3段自下而上划分为5个层序,其中,Ⅰ层序中高水位体系域,主要发育弱非均质性储层,Ⅴ、Ⅱ层序中水进体系域,主要发育中等非均质储层,其余各层序体系域储层主要具强非均质性.总的来说,河流作用相对较强的高水位体系域,储层较水进体系域,储层的物性非均质性要强,最大洪泛面也是物性、非均质性转换面.更多还原

【Abstract】 In this paper, the vertical characteristics of sandstone and conglomerate reservoirs are studied in the equivalent time framework of sequence strata, and five quantitative models of reservoir heterogeneity in ST are established through using the correlation analysis method etc. Reservoir heterogeneity varies in space due to the differences of deposit environment, material supply, tectonic action and diagenesis. The third member of Shahejie formation are divided into five sequences, among which weak heterogeneity is developed in HST of I, midium heterogeneity is developed in SST of Ⅱ、Ⅴ and strong heterogeneity is developed in others. In a word, the HST reservoir which was effected by river, has stronger heterogeneity than that in SST, at the same time, the mfs is the change surface of heterogeneity and physical characteristics.更多还原