利用粒度分析资料研究砾岩储层有利沉积相带

根据克拉玛依油田砾岩储层非均质性和复模态孔隙结构特点,利用粒度参数分布曲线的统计特征和弗里德曼离散图,阐述了七中、东区克下组山麓洪积相的沉积特征.指出了有利相带扇顶主槽微相划分的特征和方法,分析了有利沉积微相带与含油状况的关系,为合理选择开发决策和改善油田开发效果提供了可靠的地质依据.

Study on the favorable sedimentary facies belt of conglomerate reservoir by using grain - size analysis data

Based on heterogeneity and the property of complex modal pore structure of the conglomerate reservoir in Karamay Oilfield, sedimentary characteristic of piedmont-pluvial facies in lower Karamay formation ofQizhong and Dongqu was presented by the statistical feature of grain parameter distribution curves and the Freydman discrete diagram.The method and the character of microfacies classification of fan-top main trough of favorable facies belt were pointed out. Relationship between favorable sedimentary microfacies belt and oil-bearing state was analyzed. It provides reliable geological basis for rational selecting exploitation decision-making and improving oilfield development effect.