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大兴砾岩体位于廊固凹陷西部，为冲积扇——扇三角洲沉积体系，是本区具潜力的勘探目标，通过岩石录井资料和三维地震资料分析，建立了砾岩体剖面识别模式，并划分出两种不同的砾岩体油藏类型，揭示了本区砾岩体的三维空间分布特征，研究表明：大头断层下降盘砾岩油气藏有着比较好的盖层和油源条件，本区存在两种不同的砾岩油气藏类型可供勘探，并将油藏描述技术成功地运用于砾岩油气藏的勘探．
The Daxing conglomerate body, located in the west of the Langgu Sag, is an alluvial fan-fan delta depositional system and is a potential exploration target in this area. Based on the rock well logging data and 3D seismic data, the profile identification mode of conglomerate body is established. Two different types of conglomerate reservoir types are distinguished and the three-dimensional spatial distribution characteristics of conglomerate bodies in this area are revealed. The results show that the conglomerate reservoir has a good cap rock and oil source conditions, There are two different conglomerate reservoir types available for exploration, and the reservoir description techniques are successfully applied to the exploration of conglomerate reservoirs.