克拉玛依油田六中区克下组沉积微相及其含油气性

在对克拉玛依油田六中区克下组储层岩石学特征分析的基础上,对储层的沉积结构和构造、粒度分布和层序组合进行了分析,认为其形成环境为洪积扇，识别出了扇根、扇中和扇缘亚相，其中扇根又细分为主槽、侧缘槽、槽滩、漫洪带，扇中又细分为辫流河道、辫流砂岛、漫流带等微相，然后分析了各个砂层沉积微相的展布规律,最后，探讨了沉积微相与含油性关系。

SEDIMENTARY MICROFACIES AND OIL-BEARING PROBABILITY OF LOWER KELAMAYI FORMATION IN LIUZHONG DISTRICT OF KELAMAYI OILFIELD

On the basis of the petrologic study about reservoirs in the Liuzhong district and after analyzing the depositional textures and structures, the grain-size distribution and the sequences combination, the sedimentary environment is thought to be alluvial and be made up of three subfacies and nine microfacies. The microfacies distribution of each sand layer is discussed. At last, the relationship between the sedimentary microfacies and oil-bearing probability of the reservoirs are discussed, which provides the support for the future exploration.