Taking the upper Ng 2 formation of Y3 block in YSM Oilfield as a case, the architecture analysis method of braided river reservoir was proposed. Based on the former results about outcrop and modern deposition study, using dynamic and static data, the singe mid-channel bar was identified and anatomized. The 3D architecture model was built. The results show that the interlayer in the think sandbody of braided river reservoir, which was associated with the bounding surface, was always unstable in the center part of the mid-channel bar, where the remaining oil was always on the top. The interlayer was relatively stable in the lateral part of the mid-channel bar, where the remaining oil was accumulated in the relatively homogeneous segments separated by the interlayer.

位于东印尼Seram岛上的Oseil油田是侏罗系Manusela碳酸盐岩裂缝型油藏,油气的分布严格受控于裂缝的展布和发育程度。本文运用频谱分解技术对该区的断裂系统分布和微裂缝的展布规律进行了研究。通过对Manusela层反射特征的分析和裂缝型储层正演模型模拟,总结出碳酸盐岩裂缝型储层的地震响应特征。选择最能反映目标层断层特征的40ms时窗制作了频率调谐体和时频四维体。频率调谐体分析表明,研究区中部和南部发育两组交叉的断裂体系,北部发育一组断裂体系,断层的附近裂缝较为发育,裂缝的展布严格受控于断层的发育。时频四维体从空间上雕刻出了断层和裂缝的分布,裂缝具有表层较发育、深层发育较差的特征,但两者的深层裂缝分布规律比较一致。频谱分解技术预测的结果与钻探结果较为吻合,表明此法有广阔的应用前景。