Abstract: The prediction method of the sand body outside the delta is put forward, that is, through logging curve pretreatment, seismic synthetic record making, virtual mudstone time window technology, curve reconstruction inversion and other technical means, the purpose of thin differential reservoir prediction is realized. It has been proved that the field application of the results in the oilfield is mainly reflected in two aspects: One is to guide the division of sedimentary microfacies, the other is the application of risk well location deployment. That is to say, the idea of well point phasing and inversion section configuration is adopted to guide the drawing of sedimentary microfacies in key units of putaohua reservoir. In other words, based on the comprehensive understanding of the structure and thin differential reservoir geology, a cross⁃fault horizontal well is successfully deployed by adopting the method of exploration and evaluation well injection optimization and implementing the "four injection and one production" well pattern principle. Therefore, the proposed reconstruction inversion method can be used as an effective technical means for characterization of thin differential reservoirs, which is of great significance for further exploration of oil⁃bearing potential of thin differential reservoirs.

Key words: Daqing oilfield, Thin differential reservoir, Reconstruction inversion, Sedimentary microfacies, Horizontal wells across faults

摘要： 提出了三角洲外前缘砂体预测的方法，即通过测井曲线预处理、地震合成记录制作、虚拟泥岩时窗技术、曲线重构反演等手段，实现了薄差储层预测的目的。实践证明，该成果在油田现场应用主要体现在两个方面：指导沉积微相划分和优化井位布署。采用井点定相、反演切片组形的思路，指导葡萄花油层重点单元沉积微相的绘制。综合构造、薄差储层地质认识，采用探评井转注优化方式，实行“四注一采”井网原则，成功部署了1口跨断层水平井。因此，提出的重构反演方法可以作为薄差储层刻画的有效技术手段，对后续薄差储层含油潜力挖潜具有重要的意义。

关键词: 大庆油田, 　薄差储层, 　重构反演, 　沉积微相, 　跨断层水平井