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为了确定红岗油田大208区扶杨油层有利储层,对扶杨油层沉积微相进行研究。以岩心观察、粒度分析、沉积构造特征和测井相分析为基础,结合区域地质背景,建立大208区扶杨油层的沉积模式,确定该区为三角洲平原和三角洲前缘亚相沉积。在此基础上,通过横向对比,绘制了各单层的沉积微相平面展布图,详细阐述了沉积微相的展布特征和变化规律,为寻找剩余油提供了重要的地质依据。
In order to determine the favorable reservoir of Fuyang reservoir in Da 208 area of Honggang oilfield, the sedimentary microfacies of Fuyang reservoir were studied. Based on core observation, grain size analysis, sedimentary structural characteristics and well logging facies analysis, combined with the regional geological background, the sedimentary model of Fuyang reservoir in Da 208 area is established, which is the deltaic delta and delta front subfacies deposition. On this basis, the horizontal distribution of sedimentary microfacies of each monolayer is plotted by horizontal contrast, and the distribution characteristics and variation regularity of sedimentary microfacies are elaborated. It provides an important geological basis for finding the remaining oil.