【摘要】 根据沉积相、测井相和地震资料，将罗家鼻状构造沙四段近岸水下扇划分为三个亚相，并进一步划分为六个微相。根据沉积旋回、钻井和测井模型将沙四段上部划分为五个砂层组，在垂向和横向上对近岸水下扇的砂砾岩体进行了对比，并恢复了近岸水下扇的沉积模式。文章还讨论了储层发育的控制因素更多还原

【Abstract】 Based on the sedimentary facies, well logging and seismic data, the research on the nearshore subaqueous fan of the fourth member stratum of Shahejie Formation in the Loujia nose, Zhanhua depression is conducted. The nearshore subaqueous fan is divided into 3 subfacies and 6 microfacies. Based on the sedimentary cycle, the forth member of the Shahejie Formation is divided into five main sand groups by studying well drilling core and well logging model. Vertical and lateral correlations of the sandy conglomerate bodies are made and the depositional model of a nearshore subaqueous fan is given. The controlling factors of reservoir development are discussed.更多还原